Heswall Weather & Climate: Best Time to Visit

In Heswall, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a pleasant 20°C (68°F) in July, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like February.

At night, you can expect temperatures ranging from 13°C (55°F) in July to around 3°C (37°F) during February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Heswall experiences significant rainfall throughout the year, averaging 1022 mm (40 in) of precipitation annually. Year-round, Heswall has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 97 mm (3.8 in), and the driest month, March, with 71 mm (2.8 in), is minimal. For more details, please visit our Heswall 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 Heswall. While May receives considerable daily sunshine with up to 7.0 hours, December marks the darkest time of the year, where sunshine is scarce 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

The city experiences its highest humidity in December, reaching 86%. In May, the humidity drops to its lowest level at 76%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year