Monthly weather forecast and climate
Southampton, United Kingdom

A lovely water fountain in front of the City Art Gallery building in Southampton, United Kingdom
A lovely water fountain in front of the City Art Gallery building in Southampton, United Kingdom

Weather in January

January, the same as December, in Southampton, United Kingdom, is a frosty winter month, with temperature in the range of an average high of 7.4°C (45.3°F) and an average low of 3.3°C (37.9°F). January is the coldest month, with an average high-temperature of 7.4°C (45.3°F) and an average low-temperature of 3.3°C (37.9°F). Weather in January »

Weather in February

The last month of the winter, February, is also a frosty month in Southampton, United Kingdom, with average temperature varying between 7.8°C (46°F) and 3.3°C (37.9°F). In Southampton, the average high-temperature in February is almost the same as in January - a still chilly 7.8°C (46°F). Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Southampton, United Kingdom, with average temperature ranging between max 10.4°C (50.7°F) and min 4.1°C (39.4°F). In March, the average high-temperature is relatively the same as in February - a fresh 10.4°C (50.7°F). Weather in March »

Weather in April

April in Southampton, United Kingdom, is a moderate spring month, with temperature in the range of an average high of 13.3°C (55.9°F) and an average low of 5.7°C (42.3°F). In April, the average high-temperature is almost the same as in March - a moderate 13.3°C (55.9°F). Weather in April »

Weather in May

May, the last month of the spring, in Southampton, is also a moderate month, with temperature in the range of an average low of 7.8°C (46°F) and an average high of 15.7°C (60.3°F). In Southampton, the average high-temperature is almost the same as in April - a still mild 15.7°C (60.3°F). Weather in May »

Weather in June

June, the first month of the summer, in Southampton, is a comfortable month, with average temperature fluctuating between 18.6°C (65.5°F) and 10.8°C (51.4°F). In June, the average high-temperature is essentially the same as in May - a comfortable 18.6°C (65.5°F). Weather in June »

Weather in July

July in Southampton, United Kingdom, is an agreeable summer month, with average temperature varying between 13°C (55.4°F) and 20.7°C (69.3°F). With an average high-temperature of 20.7°C (69.3°F) and an average low-temperature of 13°C (55.4°F), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer, in Southampton, is another pleasant month, with average temperature fluctuating between 13.3°C (55.9°F) and 20.3°C (68.5°F). In Southampton, the average high-temperature in August is relatively the same as in July - a still agreeable 20.3°C (68.5°F). Weather in August »

Weather in September

September, the first month of the autumn, in Southampton, is also an enjoyable month, with temperature in the range of an average high of 18.3°C (64.9°F) and an average low of 11.5°C (52.7°F). In Southampton, the average high-temperature in September is almost the same as in August - a comfortable 18.3°C (64.9°F). Weather in September »

Weather in October

October, like September, is another mild autumn month in Southampton, United Kingdom, with average temperature ranging between max 15.1°C (59.2°F) and min 9.8°C (49.6°F). In October, the average high-temperature slightly decreases, from a comfortable 18.3°C (64.9°F) in September, to a mild 15.1°C (59.2°F). Weather in October »

Weather in November

November, the last month of the autumn, in Southampton, is also a fresh month, with average temperature ranging between min 6.8°C (44.2°F) and max 11°C (51.8°F). In November, the average high-temperature marginally drops, from a mild 15.1°C (59.2°F) in October, to a fresh 11°C (51.8°F). Weather in November »

Weather in December

December, the first month of the winter, in Southampton, is also a frosty month, with average temperature varying between 8.7°C (47.7°F) and 4.8°C (40.6°F). In December, the average high-temperature is practically the same as in November - a chilly 8.7°C (47.7°F). Weather in December »
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FAQ

What is the coldest month in Southampton?

The coldest month in Southampton is January, with an average high-temperature of 7.4°C (45.3°F) and an average low-temperature of 3.3°C (37.9°F).

What are the most humid months in Southampton?

Months with the highest humidity in Southampton, United Kingdom, are January and December, with an average relative humidity of 87%.

How much does it rain in Southampton?

Throughout the year, in Southampton, there are 184.9 rainfall days, and 482mm (18.98") of precipitation is accumulated.

When does it snow in Southampton?

January through March, November and December are months with snowfall in Southampton, United Kingdom.

How much does it snow in Southampton?

Throughout the year, there are 4.5 snowfall days, and 20mm (0.79") of snow is accumulated.

What is the month with the lowest UV index in Southampton?

January, February and November, with an average maximum UV index of 2, are months with the lowest UV index.

What is the month with the least sunshine in Southampton?

With an average of 3.9h of sunshine, February has the least sunshine of the year.

What is the month with the coldest sea water in Southampton?

March is the month with the coldest seawater in Southampton, United Kingdom, with an average sea temperature of 8.6°C (47.5°F).

What is the driest month in Southampton?

April is the month with the least rainfall in Southampton. Rain falls for 14.3 days and accumulates 27mm (1.06") of precipitation.

When it does not snow in Southampton?

April through October are months without snowfall in Southampton, United Kingdom.

When are the longest days in Southampton?

With an average of 16.4h of daylight, June has the longest days of the year in Southampton.

What are the months with the highest UV index in Southampton?

June and July, with an average maximum UV index of 5, are months with the highest UV index.

What is the warmest month in Southampton?

July is the warmest month in Southampton, United Kingdom, with an average high-temperature of 20.7°C (69.3°F) and an average low-temperature of 13°C (55.4°F).

What is the least humid month in Southampton?

July and August, with an average relative humidity of 79%, are the least humid months in Southampton, United Kingdom.

What month has the most sunshine in Southampton?

The month with the most sunshine in Southampton is July, with an average of 8.7h of sunshine.

When is the sea warmest in Southampton?

The month with the warmest seawater in Southampton, United Kingdom, is September, with an average sea temperature of 17.3°C (63.1°F).

What is the wettest month in Southampton?

December is the month with the most rainfall. Rain falls for 16.7 days and accumulates 61mm (2.4") of precipitation.

What is the snowiest month in Southampton?

December is the month with the most snowfall. Snow falls for 1.1 days and accumulates 8mm (0.31") of snow.

What is the month with the shortest days in Southampton?

With an average of 8h of daylight, December has the shortest days of the year.

Average temperature
Southampton, United Kingdom

Average temperature - Southampton, United Kingdom

The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (7.4°C).

The month with the highest average low temperature is August (13.3°C).
The coldest months (with the lowest average low temperature) are January and February (3.3°C).

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Average pressure
Southampton, United Kingdom

Average pressure - Southampton, United Kingdom

The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).

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Average wind speed
Southampton, United Kingdom

Average wind speed - Southampton, United Kingdom

The windiest month (with the highest average wind speed) is February (19.3km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).

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Average humidity
Southampton, United Kingdom

Average humidity - Southampton, United Kingdom

Months with the highest relative humidity are January and December (87%).
Months with the lowest relative humidity are July and August (79%).

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Average rainfall
Southampton, United Kingdom

Average rainfall - Southampton, United Kingdom

The wettest month (with the highest rainfall) is December (61mm).
The driest month (with the least rainfall) is April (27mm).

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Average rainfall days
Southampton, United Kingdom

Average rainfall days - Southampton, United Kingdom

The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is September (12.3 days).

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Average snowfall
Southampton, United Kingdom

Average snowfall - Southampton, United Kingdom

The month with the highest snowfall is December (8mm).
Months with the least snowfall are April, May, June, July, August, September and October (0mm).

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Average snowfall days
Southampton, United Kingdom

Average snowfall days - Southampton, United Kingdom

The month with the highest number of snowfall days is January (1.5 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature
Southampton, United Kingdom

Average sea temperature - Southampton, United Kingdom

The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (8.6°C).

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Average daylight / Average sunshine
Southampton, United Kingdom

Average daylight / Average sunshine - Southampton, United Kingdom

The month with the longest days is June (Average daylight: 16.4h).
The month with the shortest days is December (Average daylight: 8h).

The month with the most sunshine is July (Average sunshine: 8.7h).
The month with the least sunshine is February (Average sunshine: 3.9h).

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Average sunshine days
Southampton, United Kingdom

Average sunshine days - Southampton, United Kingdom

The month with the most sunshine days is March (14 days).
The month with the least sunshine days is November (8.9 days).

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Average UV index
Southampton, United Kingdom

Average UV index - Southampton, United Kingdom

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February and November (UV index 2).

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Average visibility
Southampton, United Kingdom

Average visibility - Southampton, United Kingdom

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

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