Sawel Mountain (County Londonderry) weather
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Forecast days
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Today. Maximum daytime temperature: 5 degrees Celsius; Minimum nighttime temperature: 1 degrees Celsius. Sleet changing to cloudy by early evening. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; Pollen: Low.Today. Maximum daytime temperature: 5 degrees Celsius; Minimum nighttime temperature: 1 degrees Celsius. Sleet changing to cloudy by early evening. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; Pollen: Low.
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Sunday 28 April. Maximum daytime temperature: 5 degrees Celsius; Minimum nighttime temperature: 1 degrees Celsius. Cloudy changing to sunny intervals by late morning. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; Pollen: Low.Sunday 28 April. Maximum daytime temperature: 5 degrees Celsius; Minimum nighttime temperature: 1 degrees Celsius. Cloudy changing to sunny intervals by late morning. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; Pollen: Low.
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Monday 29 April. Maximum daytime temperature: 7 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Light snow changing to heavy rain by late morning. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; Pollen: Low.Monday 29 April. Maximum daytime temperature: 7 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Light snow changing to heavy rain by late morning. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; Pollen: Low.
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Tuesday 30 April. Maximum daytime temperature: 7 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Cloudy changing to light rain by lunchtime. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; Pollen: Low.Tuesday 30 April. Maximum daytime temperature: 7 degrees Celsius; Minimum nighttime temperature: 2 degrees Celsius. Cloudy changing to light rain by lunchtime. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; Pollen: Low.
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Wednesday 1 May. Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Fog changing to cloudy by late morning. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; Pollen: Moderate.Wednesday 1 May. Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Fog changing to cloudy by late morning. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; Pollen: Moderate.
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Thursday 2 May. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Cloudy. Sunrise: ; Sunset: . UV: Moderate;Thursday 2 May. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Cloudy. Sunrise: ; Sunset: . UV: Moderate;
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Friday 3 May. Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Fog changing to overcast by lunchtime. Sunrise: ; Sunset: . UV: Moderate;Friday 3 May. Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Fog changing to overcast by lunchtime. Sunrise: ; Sunset: . UV: Moderate;
Seven day forecast for Sawel Mountain
| Time | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
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| Weather symbols |
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Chance of precipitation
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60% | 50% | 50% | 10% | 10% | 10% | <5% | <5% | <5% |
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2°
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2°
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2°
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3°
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2°
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2°
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2°
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2°
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2°
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-2° | -1° | -1° | 0° | 0° | 0° | 0° | 0° | 0° |
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ESE
12
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E
8
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SE
7
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NE
5
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NNE
4
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N
5
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N
4
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N
4
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NNE
4
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15 | 10 | 9 | 6 | 6 | 6 | 6 | 5 | 6 |
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M | G | E | E | VG | VG | VG | VG | VG |
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Humidity
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83% | 85% | 85% | 84% | 90% | 91% | 91% | 93% | 90% |
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UV
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3 | 3 | 2 | 1 | 1 | 1 | - | - | - |
| Time | 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
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| Weather symbols |
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Chance of precipitation
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<5% | <5% | <5% | <5% | <5% | <5% | <5% | 10% | <5% | <5% | <5% | 10% | 10% | 10% | 30% | 20% | 10% | 10% | 30% | 30% | 40% | 50% | 20% | 20% |
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2°
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2°
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2°
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2°
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2°
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3°
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2°
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2°
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2°
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2°
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3°
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3°
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3°
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3°
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4°
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4°
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4°
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4°
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4°
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4°
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3°
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3°
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2°
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2°
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-1° | -1° | -1° | 0° | 1° | 1° | 1° | 1° | 0° | 1° | 1° | 1° | 1° | 0° | 1° | 1° | 1° | 2° | 2° | 1° | 0° | -1° | -1° | -2° |
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NE
6
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NE
6
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ENE
6
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ENE
6
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ENE
4
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E
4
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NNE
4
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N
4
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NNE
4
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NNW
3
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N
4
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W
4
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SW
6
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WNW
10
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WNW
6
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NW
7
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SW
9
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W
7
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SW
6
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WNW
9
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W
8
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WSW
9
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SSW
10
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SSW
12
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8 | 10 | 9 | 9 | 5 | 5 | 5 | 5 | 5 | 5 | 7 | 8 | 9 | 15 | 10 | 12 | 14 | 11 | 9 | 13 | 11 | 13 | 14 | 16 |
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VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | E | VG | VG | VG | VG | VG | VG |
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Humidity
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92% | 89% | 88% | 86% | 83% | 80% | 80% | 85% | 87% | 84% | 81% | 75% | 79% | 77% | 74% | 75% | 76% | 73% | 75% | 82% | 85% | 91% | 94% | 95% |
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UV
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- | - | - | - | - | - | - | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 4 | 3 | 2 | 2 | 1 | 1 | - | - | - |
| Time | 00:00 | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
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10% | 10% | 10% | 50% | 90% | 90% | 70% | 50% | 10% |
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2°
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2°
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1°
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2°
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3°
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5°
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6°
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5°
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3°
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-3° | -3° | -4° | -4° | -3° | -1° | 2° | 1° | 0° |
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SSW
13
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SSW
13
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SSW
16
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S
17
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SSE
20
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SSE
22
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S
21
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SSW
15
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S
13
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17 | 19 | 23 | 24 | 30 | 35 | 36 | 25 | 21 |
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G | M | G | VP | P | M | G | G | G |
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Humidity
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97% | 97% | 97% | 99% | 98% | 97% | 87% | 90% | 96% |
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UV
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- | - | - | 1 | 1 | 3 | 3 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
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10% | 20% | 20% | 20% | 50% | 40% | 30% | 10% |
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3°
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2°
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3°
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5°
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6°
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6°
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6°
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4°
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-1° | -2° | -2° | 0° | 1° | 1° | 2° | 0° |
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SSE
12
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SE
12
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ESE
16
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ESE
17
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SE
19
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SE
21
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SE
19
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ESE
16
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19 | 19 | 25 | 30 | 35 | 37 | 32 | 26 |
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M | M | M | M | M | G | G | G |
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Humidity
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98% | 98% | 98% | 96% | 92% | 90% | 90% | 95% |
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UV
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- | - | 1 | 2 | 3 | 2 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
|
10% | 10% | 20% | 10% | 10% | 10% | 10% | 10% |
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3°
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2°
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3°
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6°
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8°
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10°
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9°
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6°
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-1° | -1° | -1° | 3° | 6° | 7° | 7° | 3° |
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ESE
13
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E
11
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E
12
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ESE
12
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ESE
12
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ESE
11
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E
10
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NE
10
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21 | 17 | 19 | 23 | 23 | 22 | 18 | 15 |
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G | M | VP | VG | VG | VG | VG | G |
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Humidity
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97% | 98% | 97% | 89% | 76% | 71% | 77% | 95% |
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UV
|
- | - | 1 | 3 | 4 | 3 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
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10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% |
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5°
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5°
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5°
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7°
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9°
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10°
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9°
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6°
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2° | 1° | 2° | 4° | 7° | 8° | 6° | 3° |
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NNE
11
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NNE
11
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WNW
11
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WNW
11
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SE
10
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W
10
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WNW
11
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WNW
10
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17 | 17 | 17 | 19 | 21 | 21 | 20 | 16 |
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G | M | M | G | G | VG | VG | G |
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Humidity
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98% | 98% | 98% | 94% | 86% | 83% | 84% | 96% |
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UV
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- | - | 1 | 2 | 4 | 3 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbols |
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Chance of precipitation
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10% | 20% | 20% | 20% | 10% | 10% | 10% | 10% |
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5°
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4°
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4°
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7°
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9°
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9°
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8°
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6°
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2° | 1° | 1° | 4° | 7° | 7° | 6° | 3° |
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N
10
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WNW
10
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NW
10
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NW
10
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NW
10
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NW
10
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NW
10
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NW
10
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15 | 15 | 16 | 19 | 21 | 20 | 19 | 17 |
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G | VP | VP | P | VG | VG | VG | G |
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Humidity
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96% | 97% | 98% | 89% | 80% | 82% | 87% | 94% |
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UV
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- | - | 1 | 2 | 4 | 3 | 1 | - |
Our weather symbols tell you the weather conditions for any given hour in the day or night. This means that the symbol for 9am shows you what you will see from 9am to 10am.
Chance of precipitation represents how likely it is that rain (or other types of precipitation, such as sleet, snow, hail or drizzle) will fall from the sky at a certain time.
This number shows the air temperature for the time period. You can see the temperature in Celsius or Fahrenheit by using the dropdown menu.
Feels like temperature considers other factors, such as wind speed and humidity. This gives you a better idea of how the temperature will actually feel at the time.
Wind gust shows the highest wind speed that you should encounter at that time, as winds peak and lull.
Strong winds are shown in bold for speeds of 29 mph or more.
The arrow shows the direction the wind is blowing. The letters show the direction the wind is blowing from (on a standard 16-point compass).
The number represents the average wind speed expected at that time.
The arrow shows the direction of the wind (up is north). If the arrow points from land to sea, the wind will be blowing out to sea (‘offshore’). The number is the average wind speed.
Beware of offshore winds if you are using inflatables, paddle boards or kayaks. These winds can blow you out to sea. Read more about how wind will affect you at the beach.
Visibility measures the distance at which an object can be clearly seen.
| VP (Very Poor) | Less than 1 km |
| P (Poor) | 1.1 km to 4 km |
| M (Moderate) | 4.1 km to 10 km |
| G (Good) | 10.1 km to 20 km |
| VG (Very Good) | 20.1 km to 40 km |
| E (Excellent) | Greater than 40 km |
Humidity is the amount of water vapor in the air. If there is a lot of water vapour, the humidity will be high. The higher the percentage of humidity, the wetter it will feel outside.
UV exposure index and the protection required to help keep you safe:
No risk of UV - It’s safe to stay outside. Low - You can safely stay outside. Consider sunscreen in direct sunlight. Moderate - Take care during midday hours and do not spend too much time in the sun unprotected. Sunscreen advised. High - Seek shade during midday hours, cover up and wear sunscreen. Very high - Spend time in the shade between 11am and 3pm. Shirt, sunscreen and hat are essential. Extreme - Avoid being outside during midday hours. Shirt, sunscreen and hat essential.
This is the average height of the waves, 1-2 miles out to sea. The height of the waves can vary. The individual waves out to sea or at the beach can be higher than this number. If you are close to the water, keep an eye on the waves to stop you or your belongings being swept away.
Read more about calculating the expected height of the waves at the beach.
This is the average number of seconds between one wave and the next, 1-2 miles out to sea. A long wave period (more than 10 seconds) means the waves at the beach may be more powerful. Lifeguards can give you advice on waves if you’re planning to go into the water.
Read more about the period of waves.
The arrow shows the average direction of the waves 1-2 miles out to sea. It indicates how sheltered the beach will be from these waves. If the arrow points towards land, most of the waves’ power will reach the beach. If the arrow is parallel to or pointing away from land, the wave height is likely to be lower on the beach than it is offshore.
Lifeguards can give you advice on waves if you’re planning to go into the water.
Forecast row information
UK video forecast
Northern Ireland weather forecast
Headline:
Bright intervals and a few showers on Saturday.
Today:
A dry and sunny start but cloud bubbling up with a few showers developing from late morning. Becoming dry and sunny along the east coast in the afternoon. Maximum temperature 12 °C.
Tonight:
Showers gradually die out to leave good clear spells in the evening and overnight. This will allow a few fog patches to develop in places. Minimum temperature 2 °C.
Sunday:
A dry and sunny start but cloud bubbling up with a few showers developing from late morning. Becoming drier and clearer through evening evening as showers die out. Maximum temperature 12 °C.
Outlook for Monday to Wednesday:
Cloudy with showers or longer spells of rain on Monday. Brighter with the odd shower on Tuesday and Wednesday. Turning warmer.
Updated:
UK long range weather forecast
In the first part of this period, many areas of the UK are expected to see periods of rain or showers. Some of these showers will be heavy and thundery, with the greatest chance of thunderstorms in the southeast. Along with this will be a fair amount of low cloud in the east at times, with spells of coastal fog, but also temperatures generally above average for the time of year. Overall, northwestern parts of the UK are likely to be driest and sunniest. Through the second week, temperatures will return closer to normal, perhaps dipping back below average, but it will also tend to turn gradually drier and more settled, with changeable conditions most likely to hang on longest in the south and southeast.
Updated:
In this period, the chances of unsettled weather are slightly less than usual in the north and about the same as usual further south. Therefore, some spells of wet weather are likely for all, but perhaps especially across southern areas with the driest conditions relative to normal probably further north. The chance of below or above average temperatures is fairly balanced overall, but it is worth noting that average temperatures themselves rise by around 1C per week at this time of year.
Updated:
