Clifden Weather & Climate: Best Time to Visit

The climate in Clifden experiences moderate temperature changes, with mild shifts between seasons. Average maximum daytime temperatures range from a moderate 18°C (64°F) in August, the warmest time of the year, to a chilly 10°C (50°F) during cooler months like January.

At night, you can expect temperatures ranging from 13°C (55°F) in August to around 5°C (41°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Clifden is known for its substantial rainfall, with annual precipitation reaching 1469 mm (58 in). While rainfall varies throughout the year, each season offers its own charm. December brings wetter days averaging 158 mm (6.2 in) of precipitation, spread over 24 rainy days.

In contrast, the driest month April experiences a drier climate, with about 93 mm (3.7 in) of rainfall spread across 17 rainy days. For more details, please visit our Clifden 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 Clifden. While May receives considerable daily sunshine with up to 5.2 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.2 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The city experiences its highest humidity in January, reaching 90%. In May, the humidity drops to its lowest level at 73%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year