Llanllyfni Weather & Climate: Best Time to Visit

The weather in Llanllyfni changes moderately throughout the year, offering enough variation to appreciate each season. Average maximum daytime temperatures range from a pleasant 18°C (64°F) in August, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like January.

At night, you can expect temperatures ranging from 13°C (55°F) in August to around 4°C (39°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Llanllyfni experiences significant rainfall throughout the year, averaging 1551 mm (61 in) of precipitation annually. While rainfall varies throughout the year, each season offers its own charm. December brings wetter days averaging 175 mm (6.9 in) of precipitation, spread over 21 rainy days.

In contrast, the driest month May experiences a drier climate, with about 93 mm (3.7 in) of rainfall spread across 16 rainy days. For more details, please visit our Llanllyfni Precipitation page.

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

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Llanllyfni. While May receives considerable daily sunshine with up to 5.6 hours, December marks the darkest time of the year, where sunshine is scarce 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