Dolwyddelan Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Dolwyddelan.
Climate overview of Dolwyddelan
Dolwyddelan, Gwynedd, United Kingdom, experiences significant temperature variation throughout the year. Summers bring daytime highs of 19°C (66°F) in July, while winters cool to 8°C (46°F) in January.
The city has a wet climate, receiving around 1323 mm (52 in) of rain/snowfall per year. Despite the high annual total, it has pleasant summers and cold winters. December is the wettest month. Sunshine peaks in May, when the city sees around 5.6 hours of sunshine per day.
Dolwyddelan Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Dolwyddelan - and find the best time to visit.
Monthly Temperature in Dolwyddelan
Depending on the time of the year, temperatures range from pleasant to chilly in Dolwyddelan. 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 2°C (36°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Dolwyddelan
Dolwyddelan has a relatively rain/snowy climate with high precipitation levels, averaging 1323 mm (52 in) of rain/snowfall annually. The wettest period in Dolwyddelan occurs in December, which receives around 137 mm (5.4 in) of precipitation. During the driest month, April, Dolwyddelan experiences moderate rainfall, totaling 93 mm (3.7 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Dolwyddelan 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 Dolwyddelan
In Dolwyddelan, 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 Dolwyddelan
Each month is rated for comfortable sightseeing weather — mild temperatures and low rainfall. Tap a month for its full averages; your ideal time may differ for a beach or winter trip (see below).
- Best overall: May, June, July and August
- Warmest weather: July and August
- Most sunshine: May
- Climate seasons: pleasant summers and cold winters
Frequently asked questions about the climate in Dolwyddelan
What is the best time to visit Dolwyddelan?
May, June, July and August typically offer the most optimal weather in Dolwyddelan. In contrast, January, February, March, November and December tend to have less optimal conditions. Dolwyddelan has pleasant summers and cold winters.
What temperatures can I expect in Dolwyddelan?
Daytime highs range from 8°C (46°F) in January to 19°C (66°F) in July. Nighttime lows range from 2°C (36°F) to 12°C (54°F). Temperatures vary considerably through the year.
How much rain does Dolwyddelan get?
Annual rainfall is around 1323 mm (52 in). December is the wettest month with 137 mm (5.4 in), while April is the driest with 93 mm (3.7 in).
How sunny is Dolwyddelan?
Dolwyddelan 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.
Dolwyddelan 3-Day Forecast
Dolwyddelan 3-Day Forecast
Dolwyddelan on the map
Dolwyddelan 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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