City of Belfast
May
Weather in City of Belfast for May 2025
Your guide to City of Belfast weather in May - trends and predictions
In general, the average temperature in City of Belfast 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.
City of Belfast sees moderate rainfall in May, averaging 8 rainy days.
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23
Dry days
8
Rainy days
0
Snow days
16°/7°
Temperatures
16 km/h
Avg max wind
86 %
Avg humidity
City of Belfast 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 City of Belfast
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 City of Belfast 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 City of Belfast forecast closer to your planned date for the most up-to-date weather information.
City of Belfast in May - FAQ
What are the expected maximum and minimum temperatures in City of Belfast during May?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in City of Belfast during May?
Moderate rainfall is anticipated in City of Belfast during May, with a total of 92.2 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in City of Belfast during May?
The average wind speed in City of Belfast during May is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
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