Dolgellau Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Dolgellau.
Climate overview of Dolgellau
Dolgellau, Gwynedd, United Kingdom, sees big temperature differences between seasons, with July peaking at 19°C (66°F) and January dropping to 8°C (46°F).
The city has a wet climate, receiving around 1353 mm (53 in) of rain/snowfall per year. Despite the high annual total, it has pleasant summers and cold winters. December is the wettest month. The sunniest month is May, with 5.6 hours of sunshine per day on average.
Dolgellau Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Dolgellau - and find the best time to visit.
Monthly Temperature in Dolgellau
Visitors to Dolgellau can expect significant temperature changes throughout the year. On average, daytime temperatures range from a pleasant 19°C (66°F) in July to a chilly 8°C (46°F) in January.
Nighttime temperatures range from 12°C (54°F) in July to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Dolgellau
Dolgellau is known for its substantial rain/snowfall, with annual precipitation reaching 1353 mm (53 in). The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 151 mm (5.9 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, April, still receives a respectable 88 mm (3.5 in) of rainfall. For more details, please visit our Dolgellau 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 Dolgellau
In Dolgellau, summer days are longer and more sunny, with daily sunshine hours peaking at 5.6 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 0.9 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Dolgellau
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 Dolgellau
What is the best time to visit Dolgellau?
June and July typically offer the most optimal weather in Dolgellau. In contrast, January, February, March, November and December tend to have less optimal conditions. Dolgellau has pleasant summers and cold winters.
What temperatures can I expect in Dolgellau?
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 12°C (54°F). Temperatures vary considerably through the year.
How much rain does Dolgellau get?
Annual rainfall is around 1353 mm (53 in). December is the wettest month with 151 mm (5.9 in), while April is the driest with 88 mm (3.5 in).
How sunny is Dolgellau?
Dolgellau 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.
Dolgellau 3-Day Forecast
Dolgellau 3-Day Forecast
Dolgellau on the map
Dolgellau 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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