The Mumbles Weather & Climate: Best Time to Visit

In The Mumbles, seasonal changes bring about a moderate variation in temperatures. Average daytime temperatures reach a pleasant 20°C (68°F) in August. In February, the coolest month of the year, temperatures drop to a chilly 9°C (48°F).

At night, temperatures range from around 14°C (57°F) in August to 4°C (39°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

The Mumbles has a relatively rainy climate with high precipitation levels, averaging 1344 mm (53 in) of rainfall annually. The Mumbles experiences moderate seasonal variation in rainfall, with monthly averages ranging from 150 mm (5.9 in) in December, the wettest month, and 81 mm (3.2 in) in April, the driest month. For more details, please visit our The Mumbles Precipitation page.

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

The average number of days each month with precipitation

The Mumbles can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 6.7 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.6 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 89%. In June, 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