Ulster (Donegal)
May
Weather in Ulster for May 2025
Your guide to Ulster weather in May - trends and predictions
In general, the average temperature in Ulster at the beginning of May is 13.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 14.4 °C by the end of May.
Ulster experiences an exceptionally high level of rainfall in May, with more than 20 rainy days on average.
Is May a good time to visit Ulster? check out the best time to travel to Ulster page.
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9
Dry days
22
Rainy days
0
Snow days
15°/7°
Temperatures
15 km/h
Avg max wind
84 %
Avg humidity
Ulster in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  14° | 2 16° | 3 14° | 4  11° | |||
| 5 13° | 6 11° | 7  14° | 8 13° | 9 14° | 10 19° | 11 20° |
| 12 16° | 13 14° | 14 16° | 15 16° | 16 19° | 17 18° | 18  17° |
| 19 18° | 20 21° | 21 14° | 22 14° | 23 11° | 24 10° | 25 16° |
| 26 12° | 27 15° | 28  15° | 29 15° | 30 13° | 31 15° |
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Temperatures trend during May in Ulster
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° /4° | 0.3 mm | 3 | |
| 2 May | Patchy rain possible | 16° /5° | 0.1 mm | 4 | |
| 3 May | Patchy rain possible | 14° /7° | 0.3 mm | 3 | |
| 4 May | Light rain | 11° /9° | 10.5 mm | 3 | |
| 5 May | Patchy rain possible | 13° /8° | 0.4 mm | 3 | |
| 6 May | Patchy rain possible | 11° /6° | 0.2 mm | 3 | |
| 7 May | Cloudy | 14° /4° | 0 mm | 3 | |
| 8 May | Light drizzle | 13° /8° | 0.8 mm | 3 | |
| 9 May | Patchy rain possible | 14° /8° | 0.3 mm | 3 | |
| 10 May | Patchy rain possible | 19° /9° | 0.2 mm | 4 | |
| 11 May | Patchy rain possible | 20° /7° | 0.4 mm | 5 | |
| 12 May | Light rain shower | 16° /9° | 5.1 mm | 4 | |
| 13 May | Light rain shower | 14° /7° | 9 mm | 3 | |
| 14 May | Light rain shower | 16° /8° | 2.2 mm | 4 | |
| 15 May | Light rain shower | 16° /8° | 0.8 mm | 4 | |
| 16 May | Light rain shower | 19° /7° | 2.2 mm | 4 | |
| 17 May | Patchy rain possible | 18° /9° | 0.1 mm | 4 | |
| 18 May | Overcast | 17° /6° | 0 mm | 4 | |
| 19 May | Patchy rain possible | 18° /6° | 0 mm | 4 | |
| 20 May | Light rain shower | 21° /9° | 3.5 mm | 5 | |
| 21 May | Light rain shower | 14° /10° | 6.9 mm | 3 | |
| 22 May | Light rain shower | 14° /8° | 4.1 mm | 3 | |
| 23 May | Patchy rain possible | 11° /6° | 0.6 mm | 3 | |
| 24 May | Patchy rain possible | 10° /6° | 0.8 mm | 3 | |
| 25 May | Light rain shower | 16° /8° | 0.6 mm | 4 | |
| 26 May | Light rain shower | 12° /7° | 4.9 mm | 3 | |
| 27 May | Light rain shower | 15° /6° | 1.3 mm | 4 | |
| 28 May | Moderate or heavy rain with thunder | 15° /8° | 8.4 mm | 4 | |
| 29 May | Light rain shower | 15° /8° | 3.2 mm | 4 | |
| 30 May | Light rain shower | 13° /8° | 1.9 mm | 3 | |
| 31 May | Overcast | 15° /6° | 0 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Ulster 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 Ulster forecast closer to your planned date for the most up-to-date weather information.
Ulster in May - FAQ
What are the expected maximum and minimum temperatures in Ulster 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 Ulster during May?
Moderate rainfall is anticipated in Ulster during May, with a total of 69.3 mm spread over approximately 22 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Ulster during May?
The average wind speed in Ulster during May is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Ulster in May?
As you prepare for your trip to Ulster in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Ulster, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
May rainfall patterns in Ulster
Explore the daily rainfall trends and prepare for Ulsters May weather 💧
UV exposure in Ulster during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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