Dumbarton Weather in May
What's the weather like in Dumbarton (Scotland) in May 2025?
The climate in Dumbarton during May can be summarized as mild and a little damp.
May is in the spring in Dumbarton and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 14°C (58°F), whilst at night 6°C (43°F) is normal.
| Daytime temperature | 14.2°C 57.5°F |
|---|---|
| Nightly temperature | 6.1°C 42.9°F |
| Average temperature | 10.1°C 50.2°F |
| Daily sunshine | 6.2 hrs |
| Avg rainfall | 94 mm 3.7 ins |
| Rainy days | 17 days |
| Sea temperature | 9.8°C 49.6°F |
| Humidity | 77% |
| Windspeed | 15.8kph 10 mph |
On average May is the 3rd driest month of the year in Dumbarton with around 94mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.2 hours of sunshine per day.
May temperatures in Dumbarton
May rainfall
May hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Dumbarton in May 2025.
Other monthly averages
Dumbarton weather stats
| Hottest month: | July | 17.9°C 64.2°F |
|---|---|---|
| Driest month: | April | 79mm 3.1ins |
| Sunniest month: | May | 6.2hrs |
| Coldest month: | January | 5.5°C 41.9°F |
| Wettest month: | October | 175mm 6.9ins |
© Google
Locations nearby
Top United Kingdom locations
- Belfast
- Birmingham
- Blackpool
- Bournemouth
- Brighton
- Cardiff
- Edinburgh
- Glasgow
- Liverpool
- London
- Manchester
- Newquay
- Oxford
- St Ives
- Swansea
- Torquay
- Weymouth
- Windsor
- York