County Donegal (Donegal)
May
Weather in County Donegal for May 2027
Your guide to County Donegal weather in May - trends and predictions
In general, the average temperature in County Donegal at the beginning of May is 13 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 15.4 °C by the end of May.
The climate of County Donegal in May is notably wet, with an average of 13 rainy days, and a total of 79.9 mm of precipitation.
Is May a good time to visit County Donegal? check out the best time to travel to County Donegal page.
Temperatures
Rain 🌧️
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18
Dry days
13
Rainy days
0
Snow days
15°/7°
Temperatures
16 km/h
Avg max wind
80 %
Avg humidity
County Donegal Weather May
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Temperatures trend during May in County Donegal
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May weather in County Donegal day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Patchy rain possible | 14° /6° | 0.4 mm | 2 | |
| 2 May |  Light rain | 14° /6° | 3.7 mm | 3 | |
| 3 May | Patchy rain possible | 13° /6° | 0.7 mm | 2 | |
| 4 May | Light rain | 12° /6° | 3.6 mm | 4 | |
| 5 May | Patchy rain possible | 13° /4° | 0.1 mm | 3 | |
| 6 May | Patchy rain possible | 12° /4° | 0.1 mm | 4 | |
| 7 May | Patchy rain possible | 13° /4° | 1 mm | 3 | |
| 8 May | Patchy rain possible | 13° /5° | 0.4 mm | 3 | |
| 9 May | Patchy rain possible | 14° /6° | 0.2 mm | 4 | |
| 10 May | Patchy rain possible | 16° /6° | 0.4 mm | 4 | |
| 11 May | Patchy rain possible | 16° /7° | 0.9 mm | 3 | |
| 12 May | Light rain | 13° /7° | 3 mm | 3 | |
| 13 May | Light rain | 15° /7° | 5.5 mm | 4 | |
| 14 May | Light rain shower | 15° /7° | 1.8 mm | 4 | |
| 15 May | Light rain shower | 15° /6° | 0.5 mm | 3 | |
| 16 May | Light rain | 17° /6° | 3.3 mm | 4 | |
| 17 May | Light rain | 16° /6° | 4.2 mm | 4 | |
| 18 May | Patchy rain possible | 17° /5° | 1.6 mm | 5 | |
| 19 May | Light rain | 15° /6° | 6 mm | 3 | |
| 20 May | Light rain | 18° /8° | 2.5 mm | 3 | |
| 21 May | Light rain | 16° /8° | 3.4 mm | 4 | |
| 22 May | Light rain | 16° /7° | 4.4 mm | 3 | |
| 23 May | Patchy rain possible | 14° /6° | 0.9 mm | 3 | |
| 24 May | Light rain | 15° /9° | 5.6 mm | 4 | |
| 25 May | Light rain | 16° /8° | 3.2 mm | 4 | |
| 26 May | Light rain | 15° /8° | 6.4 mm | 4 | |
| 27 May | Light rain shower | 16° /7° | 1.8 mm | 4 | |
| 28 May |  Moderate or heavy rain with thunder | 17° /9° | 4.3 mm | 3 | |
| 29 May | Light rain | 15° /9° | 5.2 mm | 4 | |
| 30 May | Light rain | 15° /9° | 2.5 mm | 3 | |
| 31 May | Patchy rain possible | 15° /8° | 2.1 mm | 3 | |
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Important Notice
Our weather forecast for County Donegal 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 County Donegal forecast closer to your planned date for the most up-to-date weather information.
Change Month
County Donegal in May - FAQ
What are the expected maximum and minimum temperatures in County Donegal during May?
During May, expect a variety of temperatures with highs around 15° and lows near 7°, suitable for diverse activities and preferences.
How much rainfall should be expected in County Donegal during May?
Moderate rainfall is anticipated in County Donegal during May, with a total of 79.9 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in County Donegal during May?
The average wind speed in County Donegal during May is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in County Donegal
Explore the daily rainfall trends and prepare for County Donegals May weather 💧
Typically, County Donegal has 13 rainy days in May with a total of 79.9 mm of rainfall.
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