Southampton Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from comfortable to chilly in Southampton. Typically, average maximum daytime temperatures range from a comfortable 22°C (72°F) in July to a chilly 9°C (48°F) in the coolest month, February.

Nights vary from 14°C (57°F) in July to around 3°C (37°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Southampton has a moderate amount of precipitation, averaging 837 mm (33 in) of rainfall annually. Precipitation levels in Southampton remain relatively steady throughout the year. November has the most rain, with 87 mm (3.4 in) over 15 days. In the driest month March, this drops slightly to 55 mm (2.2 in), making the city's climate fairly predictable. For more details, please visit our Southampton Precipitation page.

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

The average number of days each month with precipitation

For those who appreciate different seasons, Southampton serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 7.4 hours of sunshine daily, and embrace the darker days in December, offering only 1.8 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The mean water temperature over the year ranges from 9°C (48°F) in March to 17°C (63°F) in September.

Water temperature over the year

The city experiences its highest humidity in January, reaching 91%. In April, 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