Southampton, England Weather by Month and Climate Averages

How much rain does Southampton get?

Southampton gets 867 mm of precipitation in an average year, spread over about 190 days with measurable rain. That is fewer rainy days than 58% of the UK.

November is the wettest month, with 108 mm. May is the driest, with 49 mm. November has the most rainy days, about 20.

The longest dry spell in the last five years lasted 34 days, to August 1, 2022.

Southampton weather by month

Southampton weather in January

In January, Southampton averages a high of 9°C and a low of 2°C. It gets 94 mm of precipitation over about 19 rainy days. The sun is out about 30% of daylight hours. The January record high is 14°C (1998) and the record low is -13°C (1979).

Southampton weather in February

In February, Southampton averages a high of 9°C and a low of 1°C. It gets 67 mm of precipitation over about 17 rainy days. The sun is out about 26% of daylight hours. The February record high is 18°C (2019) and the record low is -11°C (2012).

Southampton weather in March

In March, Southampton averages a high of 12°C and a low of 3°C. It gets 62 mm of precipitation over about 17 rainy days. The sun is out about 32% of daylight hours. The March record high is 21°C (2012) and the record low is -8°C (1986).

Southampton weather in April

In April, Southampton averages a high of 14°C and a low of 4°C. It gets 59 mm of precipitation over about 14 rainy days. The sun is out about 40% of daylight hours. The April record high is 26°C (2025) and the record low is -6°C (1996).

Southampton weather in May

In May, Southampton averages a high of 17°C and a low of 7°C. It gets 49 mm of precipitation over about 13 rainy days. The sun is out about 37% of daylight hours. The May record high is 32°C (2026) and the record low is -3°C (1982). May is one of the most comfortable months to visit.

Southampton weather in June

In June, Southampton averages a high of 20°C and a low of 10°C. It gets 54 mm of precipitation over about 12 rainy days. The sun is out about 41% of daylight hours. The June record high is 36°C (2026) and the record low is 1°C (2001). June is one of the most comfortable months to visit.

Southampton weather in July

In July, Southampton averages a high of 22°C and a low of 12°C. It gets 49 mm of precipitation over about 12 rainy days. The sun is out about 37% of daylight hours. The July record high is 34°C (2006) and the record low is 3°C (1970). July is one of the most comfortable months to visit.

Southampton weather in August

In August, Southampton averages a high of 22°C and a low of 12°C. It gets 57 mm of precipitation over about 14 rainy days. The sun is out about 36% of daylight hours. The August record high is 34°C (1990) and the record low is 2°C (1970). August is one of the most comfortable months to visit.

Southampton weather in September

In September, Southampton averages a high of 19°C and a low of 9°C. It gets 69 mm of precipitation over about 15 rainy days. The sun is out about 33% of daylight hours. The September record high is 29°C (2023) and the record low is -2°C (1990). September is one of the most comfortable months to visit.

Southampton weather in October

In October, Southampton averages a high of 16°C and a low of 7°C. It gets 101 mm of precipitation over about 19 rainy days. The sun is out about 26% of daylight hours. The October record high is 23°C (2011) and the record low is -7°C (1983).

Southampton weather in November

In November, Southampton averages a high of 12°C and a low of 4°C. It gets 108 mm of precipitation over about 20 rainy days. The sun is out about 28% of daylight hours. The November record high is 18°C (1996) and the record low is -9°C (1993).

Southampton weather in December

In December, Southampton averages a high of 9°C and a low of 2°C. It gets 99 mm of precipitation over about 19 rainy days. The sun is out about 23% of daylight hours. The December record high is 16°C (1979) and the record low is -11°C (2010).

Sunshine, humidity and wind in Southampton

June is the sunniest month in Southampton, with sunshine about 41% of daylight hours. December is the cloudiest, at 23%. Over the year the sun shines about 32% of daylight hours. Southampton is sunnier than 77% of the UK.

Humidity peaks in December at 88% and is lowest in April at 71%.

First and last freeze in Southampton

The first fall freeze in Southampton typically comes around October 19, and the last spring freeze around April 30. That leaves a frost-free growing season of about 172 days.

Southampton weather records

The hottest temperature on record at the Southampton station is 36°C, on June 24, 2026. The coldest is -13°C, on January 3, 1979.

The wettest day on record brought 54 mm of rain, on December 31, 2000.

42 all-time records have been set at the station since 1970.

The annual mean temperature has changed by +0.3°C per decade since 1970.

The best time to visit Southampton

The most comfortable time to visit is typically May to September, when daytime highs sit near 20°C.

Winter (December–February) is chilly, with average highs around 9°C and lows near 2°C.

Spring (March–May) is mild, with average highs around 14°C and lows near 5°C.

Summer (June–August) is warm, with average highs around 21°C and lows near 11°C. It can feel humid.

Autumn (September–November) is mild, with average highs around 16°C and lows near 7°C.

Southampton climate questions

How much rain does Southampton get?

Southampton gets 867 mm of precipitation in an average year, over about 190 rainy days.

What is the wettest month in Southampton?

November is the wettest month in Southampton, with 108 mm. May is the driest, with 49 mm.

How many rainy days does Southampton have a year?

Southampton has about 190 days with measurable rain in an average year. November has the most, about 20.

What is the hottest month in Southampton?

July is the warmest month in Southampton, with an average high of 22°C.

What is the coldest month in Southampton?

February is the coldest month in Southampton, with an average low of 1°C.

What is the record high temperature in Southampton?

The record high at the Southampton station is 36°C, set on June 24, 2026. The record low is -13°C, on January 3, 1979.

What is the sunniest month in Southampton?

June is the sunniest month in Southampton, with sunshine about 41% of daylight hours. December is the cloudiest.

When is the first frost in Southampton?

The first fall freeze in Southampton typically comes around October 19. The last spring freeze is around April 30.

What is the best time to visit Southampton?

The most comfortable time to visit is typically May to September, when daytime highs sit near 20°C.