Northern Ireland (Belfast)
May
Weather in Northern Ireland for May 2025
Your guide to Northern Ireland weather in May - trends and predictions
In general, the average temperature in Northern Ireland at the beginning of May is 13.4 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 15.7 °C by the end of May.
Northern Ireland in May brings notable rainfall, with an average of 16 rainy days and a total precipitation of 53.1 mm.
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Temperatures
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15
Dry days
16
Rainy days
0
Snow days
14°/7°
Temperatures
17 km/h
Avg max wind
86 %
Avg humidity
Northern Ireland in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  14° | 2  14° | 3 12° | 4 12° | |||
| 5  14° | 6 14° | 7 14° | 8  16° | 9 16° | 10 15° | 11 16° |
| 12  16° | 13  15° | 14 12° | 15 13° | 16 15° | 17 16° | 18 16° |
| 19 16° | 20 15° | 21 15° | 22  14° | 23 12° | 24 14° | 25 15° |
| 26 14° | 27 16° | 28 15° | 29 16° | 30 17° | 31 17° |
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Temperatures trend during May in Northern Ireland
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Patchy rain possible | 14° /6° | 0.1 mm | 4 | |
| 2 May | Overcast | 14° /6° | 0 mm | 4 | |
| 3 May | Overcast | 12° /8° | 1 mm | 3 | |
| 4 May | Overcast | 12° /7° | 1.6 mm | 3 | |
| 5 May | Heavy rain at times | 14° /8° | 4.4 mm | 4 | |
| 6 May | Patchy rain possible | 14° /7° | 0.3 mm | 3 | |
| 7 May | Patchy rain possible | 14° /6° | 1.2 mm | 4 | |
| 8 May | Moderate or heavy rain shower | 16° /8° | 9.4 mm | 4 | |
| 9 May | Patchy rain possible | 16° /8° | 0.8 mm | 4 | |
| 10 May | Moderate or heavy rain shower | 15° /8° | 4.4 mm | 4 | |
| 11 May | Moderate or heavy rain shower | 16° /7° | 3.7 mm | 4 | |
| 12 May | Cloudy | 16° /8° | 1.3 mm | 4 | |
| 13 May | Sunny | 15° /8° | 5.5 mm | 4 | |
| 14 May | Patchy rain possible | 12° /7° | 2.4 mm | 3 | |
| 15 May | Patchy rain possible | 13° /6° | 0.3 mm | 3 | |
| 16 May | Patchy rain possible | 15° /6° | 0.2 mm | 4 | |
| 17 May | Overcast | 16° /7° | 0.6 mm | 4 | |
| 18 May | Overcast | 16° /6° | 0.1 mm | 4 | |
| 19 May | Overcast | 16° /6° | 0.2 mm | 4 | |
| 20 May | Patchy rain possible | 15° /8° | 2 mm | 4 | |
| 21 May | Moderate rain at times | 15° /9° | 2.4 mm | 4 | |
| 22 May | Partly cloudy | 14° /8° | 0.4 mm | 4 | |
| 23 May | Cloudy | 12° /7° | 2.6 mm | 3 | |
| 24 May | Patchy rain possible | 14° /7° | 1.4 mm | 4 | |
| 25 May | Overcast | 15° /7° | 0.1 mm | 4 | |
| 26 May | Overcast | 14° /8° | 1.1 mm | 4 | |
| 27 May | Overcast | 16° /7° | 0.9 mm | 4 | |
| 28 May | Sunny | 15° /6° | 4.1 mm | 4 | |
| 29 May | Sunny | 16° /7° | 0.6 mm | 5 | |
| 30 May | Sunny | 17° /7° | 0.1 mm | 4 | |
| 31 May | Sunny | 17° /8° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Northern Ireland in May 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 May - FAQ
What are the expected maximum and minimum temperatures in Northern Ireland during May?
During May, expect a variety of temperatures with highs around 14° and lows near 7°, suitable for diverse activities and preferences.
How much rainfall should be expected in Northern Ireland during May?
Moderate rainfall is anticipated in Northern Ireland during May, with a total of 53.1 mm spread over approximately 16 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Northern Ireland during May?
The average wind speed in Northern Ireland during May is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Northern Ireland
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