Barmouth Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Barmouth.
Climate overview of Barmouth
The climate in Barmouth, Gwynedd, United Kingdom, sees a moderate range of temperatures across the year, from 19°C (66°F) in July down to 8°C (46°F) in January.
The city receives considerable rainfall, with around 1439 mm (57 in) annually. December is the wettest month. It has pleasant summers and cold winters. The most sunshine falls in May, with an average of 5.6 hours of daily sunshine.
Barmouth Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Barmouth - and find the best time to visit.
Monthly Temperature in Barmouth
The weather in Barmouth changes moderately throughout the year, offering enough variation to appreciate each season. Typically, average maximum daytime temperatures range from a pleasant 19°C (66°F) in July to a chilly 8°C (46°F) in the coolest month, January.
Nights vary from 13°C (55°F) in July to around 3°C (37°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Barmouth
Barmouth experiences significant rainfall throughout the year, averaging 1439 mm (57 in) of precipitation annually. Barmouth offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month December (164 mm (6.5 in)) and the driest month April (88 mm (3.5 in)) is not too significant. For more details, please visit our Barmouth Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Barmouth
For those who appreciate different seasons, Barmouth serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 5.6 hours of sunshine daily, and embrace the darker days in December, offering only 0.9 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Barmouth
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June and July
- Warmest weather: June, July and August
- Most sunshine: May
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Barmouth
What is the best time to visit Barmouth?
June and July typically offer the most optimal weather in Barmouth. In contrast, January, February, March, November and December tend to have less optimal conditions. Barmouth has pleasant summers and cold winters.
What temperatures can I expect in Barmouth?
Daytime highs range from 8°C (46°F) in January to 19°C (66°F) in July. Nighttime lows range from 3°C (37°F) to 13°C (55°F).
How much rain does Barmouth get?
Annual rainfall is around 1439 mm (57 in). December is the wettest month with 164 mm (6.5 in), while April is the driest with 88 mm (3.5 in).
How sunny is Barmouth?
Barmouth receives around 1,192 hours of sunshine per year. May is the sunniest month with 169 hours, while December is the cloudiest with just 26 hours.
Barmouth 3-Day Forecast
Barmouth 3-Day Forecast
Barmouth on the map
Barmouth is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
London
23°C (73°F) Bath22°C (72°F) York22°C (72°F) Manchester
21°C (70°F) Edinburgh
19°C (66°F) Glasgow19°C (66°F) Torquay20°C (68°F) Blackpool19°C (66°F) 
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