Chelsea Weather & Climate: Best Time to Visit

In Chelsea, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 25°C (77°F) in February. In July, the coolest month of the year, temperatures drop to a moderate 14°C (57°F).

At night, temperatures range from around 16°C (61°F) in February to 8°C (46°F) in July.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Chelsea receives a reasonable amount of rainfall, with an annual precipitation of 781 mm (31 in). Chelsea experiences moderate seasonal variation in rainfall, with monthly averages ranging from 80 mm (3.1 in) in September, the wettest month, and 46 mm (1.8 in) in March, the driest month. For more details, please visit our Chelsea Precipitation page.

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

The average number of days each month with precipitation

Chelsea can be enjoyed more throughout the sunniest month of January under a blue sky, with approximately 9.2 hours of sunshine daily. In contrast, the city experiences much darker days in June, with only 4.1 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 relative humidity is moderate throughout the year in Chelsea.

The city experiences its highest humidity in June, reaching 64%. In January, the humidity drops to its lowest level at 44%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year