Llandderfel Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Llandderfel.

Climate overview of Llandderfel

Temperatures in Llandderfel, Gwynedd, United Kingdom, vary greatly throughout the year. July is the hottest month at 19°C (66°F), while January is the coldest at 7°C (45°F).

With around 1151 mm (45 in) of annual rain/snowfall, Llandderfel has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has pleasant summers and cold winters. The wettest month is December. Sunshine peaks in May, when the city sees around 5.6 hours of sunshine per day.

Llandderfel Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Llandderfel - and find the best time to visit.

Monthly Temperature in Llandderfel

The climate in Llandderfel is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a pleasant 19°C (66°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 7°C (45°F).

At night, temperatures range from around 11°C (52°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 Llandderfel

Llandderfel has a notably wet climate with abundant precipitation, recording 1151 mm (45 in) of rain/snowfall per year. Despite minor fluctuations, Llandderfel enjoys fairly consistent precipitation throughout the year. In December, you can expect around 116 mm (4.6 in) of precipitation, while in September, Llandderfel receives about 85 mm (3.3 in). For more details, please visit our Llandderfel Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Llandderfel

Llandderfel can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 5.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 0.9 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Bala, the United Kingdom (5 KM, 3 Miles).

Daily hours of sunshine

Data from: Bala, the United Kingdom (5 KM, 3 Miles).

Best Time to Visit Llandderfel

Conditions in Llandderfel are generally most comfortable in June, July and August. They are typically least comfortable in January, February, March, October, November and December.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: June, July and August
  • Warmest weather: July and August
  • Most sunshine: May
  • Seasonal pattern: Pleasant summers and cold winters

Frequently asked questions about the climate in Llandderfel

What is the best time to visit Llandderfel?

June, July and August typically offer the most optimal weather in Llandderfel. In contrast, January, February, March, October, November and December tend to have less optimal conditions. Llandderfel has pleasant summers and cold winters.

What temperatures can I expect in Llandderfel?

Daytime highs range from 7°C (45°F) in January to 19°C (66°F) in July. Nighttime lows range from 2°C (36°F) to 11°C (52°F). Temperatures vary considerably through the year.

How much rain does Llandderfel get?

Annual rainfall is around 1151 mm (45 in). December is the wettest month with 116 mm (4.6 in), while September is the driest with 85 mm (3.3 in).

How sunny is Llandderfel?

Llandderfel 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.

Llandderfel 3-Day Forecast

Llandderfel on the map

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