News
Autumnal spell of weather
A very unsettled week to come with periods of heavy rain and wind for many. A number of severe weather warnings have been issued with more expected.
Read moreSlieve Donard (County Down) weather
Find a forecast
Forecast days
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Today. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius. Heavy rain changing to cloudy by nighttime. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data. Tide: Next low at .Today. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius. Heavy rain changing to cloudy by nighttime. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data. Tide: Next low at .
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Monday 25 September. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Light showers changing to cloudy by late morning. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; No pollen data. Tide: First high at .Monday 25 September. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Light showers changing to cloudy by late morning. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; No pollen data. Tide: First high at .
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Tuesday 26 September. Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Drizzle changing to thunder by lunchtime. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; No pollen data. Tide: First high at .Tuesday 26 September. Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Drizzle changing to thunder by lunchtime. Sunrise: ; Sunset: . UV: Moderate; Pollution: Low; No pollen data. Tide: First high at .
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Wednesday 27 September. Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Cloudy changing to light rain by late morning. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data. Tide: First high at .Wednesday 27 September. Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Cloudy changing to light rain by late morning. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data. Tide: First high at .
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Thursday 28 September. Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Cloudy changing to thunder showers by late morning. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data. Tide: First high at .Thursday 28 September. Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius. Cloudy changing to thunder showers by late morning. Sunrise: ; Sunset: . UV: Low; Pollution: Low; No pollen data. Tide: First high at .
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Friday 29 September. Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Thunder showers changing to cloudy by nighttime. Sunrise: ; Sunset: . UV: Moderate; Tide: First high at .Friday 29 September. Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius. Thunder showers changing to cloudy by nighttime. Sunrise: ; Sunset: . UV: Moderate; Tide: First high at .
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Saturday 30 September. Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 6 degrees Celsius. Cloudy. Sunrise: ; Sunset: . UV: Low; Tide: First high at .Saturday 30 September. Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 6 degrees Celsius. Cloudy. Sunrise: ; Sunset: . UV: Low; Tide: First high at .
Seven day forecast for Slieve Donard
| Time | 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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80% | ≥95% | ≥95% | ≥95% | ≥95% | ≥95% | ≥95% | 70% | 10% | 10% | 10% |
|
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12°
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12°
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11°
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11°
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11°
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11°
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11°
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10°
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9°
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8°
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8°
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7° | 7° | 6° | 5° | 5° | 4° | 5° | 5° | 3° | 3° | 3° |
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S
31
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S
34
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S
47
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S
52
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S
58
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S
65
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SSW
58
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SW
43
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SW
46
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SW
42
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SW
41
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41 | 41 | 60 | 66 | 73 | 82 | 73 | 53 | 58 | 54 | 52 |
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M | P | P | VP | VP | VP | VP | G | E | E | VG |
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Humidity
|
99% | 99% | 99% | 100% | 100% | 100% | 100% | 97% | 96% | 97% | 97% |
|
UV
|
1 | 1 | 1 | 1 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
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<5% | <5% | <5% | 10% | 30% | 30% | 30% | 30% | <5% | <5% | 10% | 10% | <5% | 10% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
|
|
8°
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8°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
8°
|
8°
|
9°
|
10°
|
10°
|
10°
|
10°
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10°
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10°
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10°
|
9°
|
8°
|
8°
|
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2° | 2° | 1° | 1° | 1° | 1° | 1° | 1° | 2° | 2° | 2° | 2° | 3° | 4° | 5° | 5° | 6° | 6° | 6° | 6° | 5° | 4° | 3° | 3° |
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SW
42
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SW
44
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SW
48
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SW
47
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SW
45
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SW
42
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SW
41
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SW
41
|
SW
41
|
SW
37
|
SW
35
|
SW
35
|
SW
33
|
SW
33
|
SW
31
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SW
30
|
SW
27
|
SSW
26
|
SSW
27
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S
28
|
S
31
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SSW
34
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SSW
36
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SSW
36
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53 | 55 | 60 | 59 | 57 | 55 | 53 | 53 | 53 | 49 | 46 | 47 | 45 | 45 | 43 | 41 | 38 | 35 | 36 | 37 | 41 | 44 | 47 | 48 |
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VG | VG | VG | VG | G | VG | M | G | VG | G | G | VG | VG | E | E | E | E | E | VG | VG | VG | VG | VG | VG |
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Humidity
|
97% | 97% | 98% | 97% | 97% | 98% | 98% | 98% | 97% | 97% | 96% | 92% | 86% | 77% | 71% | 69% | 69% | 72% | 77% | 80% | 87% | 91% | 95% | 96% |
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UV
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- | - | - | - | - | - | - | - | 1 | 1 | 2 | 2 | 3 | 3 | 3 | 2 | 2 | 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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10% | 20% | 30% | 40% | 80% | 70% | 60% | 60% | 60% |
|
|
8°
|
8°
|
8°
|
9°
|
9°
|
9°
|
9°
|
8°
|
6°
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3° | 3° | 3° | 4° | 4° | 5° | 6° | 3° | 1° |
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S
35
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S
35
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S
36
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S
37
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S
36
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SW
25
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SW
22
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SW
20
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SW
20
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47 | 47 | 49 | 53 | 52 | 38 | 35 | 30 | 28 |
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VG | P | G | P | M | M | VG | VG | VG |
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Humidity
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97% | 98% | 98% | 98% | 97% | 94% | 78% | 90% | 94% |
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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% | 10% | 10% | 60% | 90% | 70% | 60% | 40% |
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5°
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5°
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5°
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7°
|
8°
|
8°
|
8°
|
7°
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1° | 1° | 1° | 2° | 2° | 2° | 3° | 2° |
|
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SW
17
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SSW
15
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SSE
19
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SSE
28
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SE
39
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SSE
42
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S
39
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WSW
38
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24 | 21 | 27 | 44 | 60 | 66 | 59 | 57 |
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VG | VG | G | M | M | M | G | G |
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Humidity
|
96% | 97% | 97% | 97% | 97% | 94% | 93% | 92% |
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UV
|
- | - | - | 1 | 1 | 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% | <5% | 10% | 50% | 60% | 60% | 60% | 60% |
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6°
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5°
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5°
|
7°
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8°
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9°
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7°
|
6°
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0° | -1° | -1° | 2° | 4° | 4° | 2° | 1° |
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WSW
36
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WSW
32
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SW
26
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SSW
27
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SSW
27
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SSW
27
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SW
28
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SW
25
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55 | 47 | 37 | 40 | 43 | 44 | 42 | 37 |
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VG | VG | VG | VG | G | VG | VG | VG |
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Humidity
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93% | 93% | 94% | 92% | 88% | 79% | 86% | 93% |
|
UV
|
- | - | - | 1 | 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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60% | 50% | 50% | 50% | 50% | 50% | 50% | 10% |
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|
5°
|
5°
|
4°
|
6°
|
8°
|
9°
|
7°
|
5°
|
|
|
0° | -1° | -1° | 1° | 4° | 5° | 3° | 1° |
|
|
SW
23
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SW
24
|
SW
24
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WSW
24
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WSW
20
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WSW
19
|
WSW
18
|
WSW
18
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33 | 33 | 33 | 36 | 33 | 30 | 24 | 23 |
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VG | VG | VG | VG | VG | VG | VG | VG |
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Humidity
|
96% | 96% | 96% | 93% | 79% | 76% | 88% | 94% |
|
UV
|
- | - | - | 2 | 3 | 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
|
10% | 10% | 10% | 10% | 10% | 10% | 20% | 20% |
|
|
5°
|
4°
|
3°
|
6°
|
8°
|
8°
|
7°
|
7°
|
|
|
1° | 0° | -1° | 2° | 5° | 4° | 3° | 2° |
|
|
SW
17
|
SW
17
|
SSW
17
|
SSW
18
|
SSW
18
|
SSW
18
|
S
20
|
S
22
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22 | 22 | 22 | 25 | 28 | 28 | 28 | 31 |
|
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VG | G | G | VG | VG | VG | VG | G |
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Humidity
|
96% | 97% | 97% | 92% | 85% | 86% | 92% | 94% |
|
UV
|
- | - | - | 1 | 2 | 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). 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.
Slieve Donard weather map
View the weather with our interactive map
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Northern Ireland weather forecast
Headline:
Windy with rain this afternoon.
Today:
A few showers in the west at first otherwise a dry start. Wet and windy weather developing in the afternoon with some heavy rain at times. Southerly gales along the east coast. Maximum temperature 17 °C.
Tonight:
Rain, briefly heavy, soon clearing away this evening. Then clear periods and a few passing showers.Windy at first in the east this evening, southerly gales along the east coast. Minimum temperature 11 °C.
Monday:
Mainly dry with sunny intervals although a few passing showers likely, these mainly in the morning. Brisk southwesterly winds. Maximum temperature 18 °C.
Outlook for Tuesday to Thursday:
Sunny spells and showers on Tuesday. Very windy with rain at times on Wednesday, chance of gales. Less windy and bright on Thursday with a few showers.
Updated:
UK long range weather forecast
The end of September is likely to see a mixture of showers, periods of heavier rain and some brief, drier interludes. The wettest conditions are most probable across north-western areas and may be accompanied by spells of strong winds. Elsewhere, it is likely to be calmer, with eastern and south-eastern areas expected to see the best of any dry or bright spells, though this does not discount unsettled weather in these areas. Temperatures are likely close to, or slightly above average, with some mild nights. The changeable theme will likely continue into early October, with settled spells and periods of rain and showers, but there is a chance of a more prolonged period of settled weather, most probable in the southeast, which might also lead to some chillier nights.
Updated:
Indications are for a continuation of the changeable conditions early in the period, with some dry and settled conditions interspersed with spells of rain and showers. Further into the month, there is a possibility that unsettled, wet weather may become more common, which could result in southern areas being wetter than usual for the time of year. Northern areas, however, may see slightly less rainfall than usual. It is likely that temperatures will be above average for October, though it may feel chilly overnight in any clear and settled conditions.
Updated:
