Harlech Weather & Climate: Best Time to Visit

The weather in Harlech changes moderately throughout the year, offering enough variation to appreciate each season. Average daytime temperatures reach a pleasant 19°C (66°F) in July. In February, the coolest month of the year, temperatures drop to a chilly 8°C (46°F).

At night, temperatures range from around 13°C (55°F) in July to 3°C (37°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Harlech experiences significant rainfall throughout the year, averaging 1498 mm (59 in) of precipitation annually. Harlech experiences moderate seasonal variation in rainfall, with monthly averages ranging from 169 mm (6.7 in) in December, the wettest month, and 93 mm (3.7 in) in April, the driest month. For more details, please visit our Harlech Precipitation page.

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

The average number of days each month with precipitation

Harlech 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

Daily hours of sunshine