Castlewellan (County Down) weather
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Forecast days
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Today. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Sunny changing to partly cloudy by nighttime. Sunrise: 06:15; Sunset: 18:46. UV: Low; Pollution: Low; Pollen: Low.Today. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Sunny changing to partly cloudy by nighttime. Sunrise: 06:15; Sunset: 18:46. UV: Low; Pollution: Low; Pollen: Low.
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Sunday 26 March. Maximum daytime temperature: 7 degrees Celsius; Minimum nighttime temperature: -1 degrees Celsius. Overcast changing to sunny intervals in the afternoon. Sunrise: 07:12; Sunset: 19:48. UV: Low; Pollution: Low; Pollen: Low.Sunday 26 March. Maximum daytime temperature: 7 degrees Celsius; Minimum nighttime temperature: -1 degrees Celsius. Overcast changing to sunny intervals in the afternoon. Sunrise: 07:12; Sunset: 19:48. UV: Low; Pollution: Low; Pollen: Low.
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Monday 27 March. Maximum daytime temperature: 7 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Clear changing to cloudy by lunchtime. Sunrise: 07:10; Sunset: 19:50. UV: Moderate; Pollution: Low; Pollen: Low.Monday 27 March. Maximum daytime temperature: 7 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Clear changing to cloudy by lunchtime. Sunrise: 07:10; Sunset: 19:50. UV: Moderate; Pollution: Low; Pollen: Low.
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Tuesday 28 March. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Heavy rain changing to cloudy by nighttime. Sunrise: 07:07; Sunset: 19:52. UV: Low; Pollution: Low; Pollen: Low.Tuesday 28 March. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Heavy rain changing to cloudy by nighttime. Sunrise: 07:07; Sunset: 19:52. UV: Low; Pollution: Low; Pollen: Low.
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Wednesday 29 March. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Overcast changing to drizzle by late morning. Sunrise: 07:05; Sunset: 19:53. UV: Low; Pollution: Low; Pollen: Low.Wednesday 29 March. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Overcast changing to drizzle by late morning. Sunrise: 07:05; Sunset: 19:53. UV: Low; Pollution: Low; Pollen: Low.
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Thursday 30 March. Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius. Overcast changing to light showers by lunchtime. Sunrise: 07:02; Sunset: 19:55. UV: Moderate;Thursday 30 March. Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius. Overcast changing to light showers by lunchtime. Sunrise: 07:02; Sunset: 19:55. UV: Moderate;
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Friday 31 March. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 6 degrees Celsius. Overcast changing to light showers in the afternoon. Sunrise: 07:00; Sunset: 19:57. UV: Low;Friday 31 March. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 6 degrees Celsius. Overcast changing to light showers in the afternoon. Sunrise: 07:00; Sunset: 19:57. UV: Low;
Seven day forecast for Castlewellan
| Time | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
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| Weather symbol |
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Chance of precipitation
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30% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
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10°
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10°
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10°
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9°
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8°
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7°
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7°
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6°
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6°
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7° | 8° | 8° | 9° | 7° | 6° | 6° | 5° | 4° |
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WSW
17
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W
9
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WSW
7
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S
3
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SE
3
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SE
3
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ENE
3
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ENE
5
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NE
6
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28 | 15 | 11 | 5 | 4 | 7 | 8 | 9 | 11 |
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E | E | E | VG | VG | VG | VG | VG | VG |
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Humidity
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65% | 66% | 68% | 74% | 81% | 81% | 81% | 86% | 91% |
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UV
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2 | 1 | 1 | 1 | - | - | - | - | - |
| Time | 00:00 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
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<5% | 10% | 10% | 40% | 70% | 60% | 20% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
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6°
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6°
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6°
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6°
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5°
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5°
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5°
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5°
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5°
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5°
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5°
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6°
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6°
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6°
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6°
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7°
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7°
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6°
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6°
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5°
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4°
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3°
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2°
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3° | 3° | 3° | 2° | 2° | 1° | 1° | 1° | 1° | 1° | 2° | 2° | 3° | 3° | 3° | 4° | 4° | 4° | 4° | 2° | 1° | 0° | -1° |
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ENE
8
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ENE
9
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ENE
10
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NE
10
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NE
11
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NE
10
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NE
10
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NE
10
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NE
10
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NE
10
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NE
10
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NE
9
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NE
9
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NE
8
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NNE
9
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NNE
9
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NNE
8
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N
8
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N
6
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N
7
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NNW
7
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NNW
7
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NNW
8
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16 | 17 | 18 | 19 | 20 | 20 | 19 | 20 | 19 | 19 | 18 | 17 | 17 | 16 | 17 | 17 | 15 | 15 | 12 | 16 | 17 | 18 | 18 |
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G | G | G | G | G | G | G | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG |
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Humidity
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95% | 94% | 94% | 94% | 93% | 94% | 94% | 93% | 90% | 87% | 82% | 75% | 72% | 72% | 69% | 61% | 58% | 57% | 61% | 63% | 64% | 66% | 67% |
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UV
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- | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
| Time | 00:00 | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
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<5% | <5% | <5% | <5% | <5% | 10% | 10% | 10% | 10% |
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2°
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1°
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0°
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-1°
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4°
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6°
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7°
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6°
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5°
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-1° | -2° | -3° | -3° | 2° | 4° | 4° | 2° | 2° |
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NNW
7
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NNW
6
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NW
5
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NNW
4
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E
5
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SE
9
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SSE
10
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SSE
9
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SSE
10
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17 | 15 | 10 | 8 | 10 | 17 | 20 | 19 | 20 |
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VG | VG | VG | VG | VG | VG | VG | VG | VG |
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Humidity
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69% | 71% | 75% | 79% | 66% | 57% | 58% | 69% | 77% |
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UV
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- | - | - | - | 2 | 3 | 2 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
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10% | 30% | 90% | 90% | 60% | 50% | 40% | 10% |
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6°
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6°
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6°
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7°
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8°
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10°
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10°
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9°
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2° | 3° | 3° | 4° | 5° | 7° | 8° | 7° |
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SSE
11
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S
12
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SSE
13
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S
15
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S
14
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S
11
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S
8
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SSW
8
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23 | 26 | 27 | 31 | 28 | 24 | 17 | 17 |
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VG | G | M | M | M | G | G | G |
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Humidity
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80% | 91% | 92% | 93% | 93% | 90% | 92% | 94% |
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UV
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- | - | - | 1 | 2 | 1 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
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10% | 10% | 20% | 40% | 40% | 50% | 40% | 30% |
|
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9°
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8°
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9°
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10°
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11°
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11°
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10°
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10°
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7° | 6° | 6° | 7° | 8° | 8° | 7° | 7° |
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SSW
8
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S
8
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S
9
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S
12
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S
14
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S
13
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S
14
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SSW
12
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16 | 18 | 19 | 25 | 29 | 28 | 28 | 25 |
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G | M | M | M | M | M | G | G |
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Humidity
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96% | 97% | 97% | 96% | 92% | 90% | 93% | 93% |
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UV
|
- | - | - | 1 | 2 | 1 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
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20% | 20% | 20% | 10% | 40% | 30% | 20% | 10% |
|
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9°
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9°
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9°
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10°
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12°
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12°
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11°
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9°
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7° | 6° | 6° | 8° | 10° | 10° | 9° | 7° |
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SW
12
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SW
12
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SW
10
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SW
12
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SSW
13
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SSW
12
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SSW
9
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S
8
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24 | 24 | 21 | 25 | 28 | 26 | 18 | 18 |
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G | G | G | G | VG | VG | G | G |
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Humidity
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93% | 94% | 93% | 88% | 77% | 76% | 83% | 91% |
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UV
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- | - | - | 1 | 3 | 2 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
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10% | 20% | 20% | 20% | 20% | 40% | 40% | 40% |
|
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8°
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8°
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8°
|
9°
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11°
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10°
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10°
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8°
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6° | 6° | 6° | 7° | 8° | 8° | 8° | 6° |
|
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S
9
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S
9
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S
9
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S
10
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SSW
10
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WSW
9
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SW
8
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WSW
8
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18 | 19 | 19 | 21 | 23 | 20 | 16 | 17 |
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G | M | M | G | G | G | G | G |
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Humidity
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95% | 96% | 96% | 90% | 83% | 83% | 85% | 90% |
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UV
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- | - | - | 1 | 2 | 1 | 1 | - |
Chance of precipitation represents how likely it is that rain (or other types of precipitation, such as sleet, snow, hail and 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). The blue behind the arrow represents the sea, and green is the land. If the arrow points from green to blue, the wind will be blowing from land to sea (‘offshore’). The number is the average wind speed.
Beware of offshore winds if you are using inflatables, paddle boards or kayaks, because 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 that the waves are going 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 or pointing away from land, the height of the waves on the beach is likely to be lower than the height of waves offshore.
Lifeguards can give you advice on waves if you’re planning to go into the water.
Northern Ireland weather forecast
Headline:
Bright spells and scattered showers. Mild
Today:
A cloudy start with some outbreaks of rain. Becoming mainly dry and bright by the afternoon but the odd heavy shower will develop. Feeling very mild or rather warm in any sunshine. Maximum temperature 13 °C.
Tonight:
A mainly dry start to the evening with some clear spells. Cloud and showery rain will gradually extend westwards during the night. Minimum temperature 3 °C.
Sunday:
A cloudy start with showery rain but this will die out during the morning. A largely dry afternoon with some brightness coming through. Maximum temperature 7 °C.
Outlook for Monday to Wednesday:
A frosty start then dry with bright or sunny spells on Monday. Outbreaks of rain on Tuesday and Wednesday and turning milder.
Updated:
UK long range weather forecast
On Wednesday, outbreaks of rain for many, moving northeast, the heaviest of which likely in the northwest and perhaps snow in the northern hills. Becoming windy with a risk of gales for some western coasts. Remaining unsettled thought the start of April at first, with showers and longer spells of rain likely. Southern and eastern areas are likely to be drier, although a chance of showers or spells of rain remain likely here. Strong winds are probable, with a low risk of gales mainly across western parts. Into early April, more settled conditions and drier interludes become increasingly likely, although a chance of wetter weather tending toward the south. Temperatures are generally above average, though colder conditions remain possible in the far north and northeast at first.
Updated:
A general trend to less unsettled conditions is likely into April. Still some wetter weather at times, tending towards the south. However, most areas are likely to see some spells of dry weather, with potentially frost and some fog overnight. The chance of strong winds is likely near to normal, with temperatures generally close to average for the time of year.
Updated:
