Northern Ireland (Belfast)
August
Weather in Northern Ireland for August 2025
Your guide to Northern Ireland weather in August - trends and predictions
In general, the average temperature in Northern Ireland at the beginning of August is 17.6 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 16.1 °C by the end of August.
Northern Ireland experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 114.4 mm.
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Temperatures
Rain 🌧️
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6
Dry days
25
Rainy days
0
Snow days
17°/10°
Temperatures
23 km/h
Avg max wind
85 %
Avg humidity
Northern Ireland in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  19° | 2  18° | 3  17° | ||||
| 4 17° | 5 18° | 6 17° | 7 17° | 8  18° | 9 19° | 10 19° |
| 11 19° | 12 18° | 13 18° | 14 18° | 15 17° | 16 17° | 17 18° |
| 18  17° | 19 18° | 20 17° | 21 17° | 22 17° | 23 17° | 24 16° |
| 25 14° | 26 17° | 27  17° | 28  18° | 29 16° | 30 16° | 31 15° |
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Temperatures trend during August in Northern Ireland
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Overcast | 19° /12° | 0.3 mm | 5 | |
| 2 Aug. | Moderate or heavy rain shower | 18° /10° | 10.8 mm | 4 | |
| 3 Aug. | Patchy rain possible | 17° /9° | 0.6 mm | 4 | |
| 4 Aug. | Patchy rain possible | 17° /9° | 4.3 mm | 4 | |
| 5 Aug. | Moderate or heavy rain shower | 18° /11° | 16.3 mm | 5 | |
| 6 Aug. | Moderate or heavy rain shower | 17° /8° | 3.4 mm | 4 | |
| 7 Aug. | Patchy rain possible | 17° /9° | 1.1 mm | 4 | |
| 8 Aug. | Cloudy | 18° /9° | 1.6 mm | 4 | |
| 9 Aug. | Overcast | 19° /10° | 0.4 mm | 5 | |
| 10 Aug. | Patchy rain possible | 19° /12° | 1.9 mm | 4 | |
| 11 Aug. | Patchy rain possible | 19° /10° | 1.3 mm | 4 | |
| 12 Aug. | Moderate or heavy rain shower | 18° /12° | 7 mm | 4 | |
| 13 Aug. | Patchy rain possible | 18° /10° | 1.4 mm | 4 | |
| 14 Aug. | Moderate or heavy rain shower | 18° /9° | 1.6 mm | 4 | |
| 15 Aug. | Patchy rain possible | 17° /10° | 7 mm | 4 | |
| 16 Aug. | Patchy rain possible | 17° /8° | 0.1 mm | 4 | |
| 17 Aug. | Patchy rain possible | 18° /10° | 0.2 mm | 4 | |
| 18 Aug. | Heavy rain at times | 17° /11° | 5.2 mm | 4 | |
| 19 Aug. | Moderate or heavy rain shower | 18° /11° | 18.5 mm | 4 | |
| 20 Aug. | Moderate or heavy rain shower | 17° /11° | 4 mm | 4 | |
| 21 Aug. | Patchy rain possible | 17° /10° | 3.2 mm | 4 | |
| 22 Aug. | Patchy rain possible | 17° /11° | 5.7 mm | 4 | |
| 23 Aug. | Patchy rain possible | 17° /10° | 4.6 mm | 4 | |
| 24 Aug. | Overcast | 16° /8° | 1.3 mm | 4 | |
| 25 Aug. | Light rain shower | 14° /7° | 2.8 mm | 4 | |
| 26 Aug. | Patchy rain possible | 17° /9° | 2.6 mm | 4 | |
| 27 Aug. | Light drizzle | 17° /11° | 1.6 mm | 4 | |
| 28 Aug. | Mist | 18° /8° | 1.5 mm | 4 | |
| 29 Aug. | Patchy rain possible | 16° /8° | 0.5 mm | 4 | |
| 30 Aug. | Light rain shower | 16° /7° | 1.1 mm | 4 | |
| 31 Aug. | Light rain shower | 15° /9° | 2.4 mm | 4 | |
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Important Notice
Our weather forecast for Northern Ireland in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Northern Ireland forecast closer to your planned date for the most up-to-date weather information.
Northern Ireland in August - FAQ
What are the expected maximum and minimum temperatures in Northern Ireland during August?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Northern Ireland during August?
Significant rainfall exceeding 114.4 mm is expected in Northern Ireland during August, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Northern Ireland during August?
The average wind speed in Northern Ireland during August is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Northern Ireland
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Where is Northern Ireland?Get accurate weather forecasts for Northern Ireland, located at latitude 54.597 and longitude -5.925. Stay updated with localized weather information tailored for Northern Ireland.
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