Gwynedd (Barmouth)
May
Weather in Gwynedd for May 2027
Your guide to Gwynedd weather in May - trends and predictions
In general, the average temperature in Gwynedd at the beginning of May is 13.9 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 15.9 °C by the end of May.
Gwynedd experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 135.3 mm.
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Temperatures
Rain 🌧️
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6
Dry days
25
Rainy days
0
Snow days
14°/7°
Temperatures
16 km/h
Avg max wind
81 %
Avg humidity
Gwynedd Weather May
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Temperatures trend during May in Gwynedd
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May weather in Gwynedd day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Overcast | 16° /6° | 6.9 mm | 3 | |
| 2 May |  Moderate rain at times | 16° /7° | 2.8 mm | 3 | |
| 3 May |  Patchy rain possible | 12° /6° | 2.4 mm | 2 | |
| 4 May | Patchy rain possible | 13° /4° | 3.1 mm | 3 | |
| 5 May | Patchy rain possible | 13° /2° | 0.1 mm | 4 | |
| 6 May | Patchy rain possible | 13° /4° | 0.2 mm | 3 | |
| 7 May | Patchy rain possible | 14° /6° | 0.5 mm | 3 | |
| 8 May | Overcast | 14° /6° | 1.5 mm | 3 | |
| 9 May |  Cloudy | 15° /6° | 0.7 mm | 4 | |
| 10 May | Overcast | 16° /6° | 0 mm | 5 | |
| 11 May | Overcast | 16° /6° | 3.4 mm | 4 | |
| 12 May | Patchy rain possible | 16° /7° | 5 mm | 4 | |
| 13 May |  Heavy rain at times | 14° /7° | 6.8 mm | 3 | |
| 14 May | Moderate rain at times | 14° /6° | 3 mm | 4 | |
| 15 May | Patchy rain possible | 15° /6° | 0.4 mm | 4 | |
| 16 May | Moderate or heavy rain shower | 15° /5° | 7.6 mm | 3 | |
| 17 May | Patchy rain possible | 15° /6° | 2.1 mm | 4 | |
| 18 May | Patchy rain possible | 15° /6° | 4.4 mm | 3 | |
| 19 May |  Sunny | 16° /7° | 7.3 mm | 3 | |
| 20 May | Moderate or heavy rain shower | 15° /8° | 8.5 mm | 3 | |
| 21 May | Moderate or heavy rain shower | 16° /7° | 4.8 mm | 4 | |
| 22 May | Moderate or heavy rain shower | 16° /8° | 5.5 mm | 5 | |
| 23 May | Overcast | 13° /7° | 3.1 mm | 4 | |
| 24 May | Patchy rain possible | 15° /7° | 4.9 mm | 4 | |
| 25 May | Patchy rain possible | 18° /8° | 2.5 mm | 5 | |
| 26 May | Moderate or heavy rain shower | 17° /10° | 10.9 mm | 4 | |
| 27 May | Patchy rain possible | 16° /9° | 8 mm | 4 | |
| 28 May | Moderate or heavy rain shower | 16° /9° | 4.3 mm | 4 | |
| 29 May | Patchy rain possible | 14° /9° | 5 mm | 3 | |
| 30 May | Moderate rain at times | 15° /8° | 3 mm | 4 | |
| 31 May | Patchy rain possible | 15° /8° | 1.7 mm | 3 | |
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Important Notice
Our weather forecast for Gwynedd 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 Gwynedd forecast closer to your planned date for the most up-to-date weather information.
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Gwynedd in May - FAQ
What are the expected maximum and minimum temperatures in Gwynedd 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 Gwynedd during May?
Significant rainfall exceeding 135.3 mm is expected in Gwynedd during May, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Gwynedd during May?
The average wind speed in Gwynedd during May is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Gwynedd
Explore the daily rainfall trends and prepare for Gwynedds May weather 💧
Typically, Gwynedd has 25 rainy days in May with a total of 135.3 mm of rainfall.
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