Climate in London (Greater London), United Kingdom

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year. Show in Fahrenheit

Average min and max temperatures in London, United Kingdom   Copyright © 2022  weather-and-climate.com

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly sunhours in London, United Kingdom   Copyright © 2022  weather-and-climate.com

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Daily percent of sunshine

The mean percent of sunhours during the day over the year

Average percent of sunshine in London, United Kingdom   Copyright © 2022  weather-and-climate.com

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Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc. Show in Inches

Average precipitation (rain/snow) in London, United Kingdom   Copyright © 2022  weather-and-climate.com

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average rainy days (rain/snow) in London, United Kingdom   Copyright © 2022  weather-and-climate.com

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Average humidity

The mean monthly relative humidity over the year

Average relative humidity in London, United Kingdom   Copyright © 2022  weather-and-climate.com

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Average wind speed

The mean monthly wind speed over the year (in meters per second)

Average wind speed in London, United Kingdom   Copyright © 2022  weather-and-climate.com

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Weather Forecasts for London (Greater London)

TUE   Dec 06
7°C | 4°C
SE 14 kmph
WED   Dec 07
4°C | 1°C
NNW 12 kmph
Partly cloudy

Partly cloudy

THU   Dec 08
3°C | -0°C
WNW 13 kmph

The best time of year to visit London in United Kingdom

London experiences a temperate maritime climate. This climate type is characterized by a tempered temperature because of the nearby sea water. In summer, the cooler seawater ensures that it is not extremely hot. In winter months, the relatively warm seawater ensures that the risk of extreme cold is much lower.

London has the image always to be wet and gray. But if you look at the whole of the United Kingdom, London is actually one of the most sunny and dry cities in the country. With a quantity of rain that comes out below six hundred millimetres per year, London is drier than for example Rome. With a number of hours of sunshine that averages around fifteen hundred a year, London is not to be called extremely sunny but it is not to bad as well.

Summers have pleasant temperatures with average high temperatures around 23 degrees Celsius (73.4°Fahrenheit) and night temperatures of 13 degrees Celsius (55.4°F). Winters in London are cold, but the temperature is hardly below freezing. Snow occurs sometimes in winter but rarely settles more than a few millimetres deep.

Springs is a great period to visit London. During the day it is nice and warm, however in the evenings it is still very cool. In autumn months it can occasionally storm. The rainfall is evenly spread throughout the year.

During the month of June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 26 degrees Celsius (79°F).

Other facts from our historical climate data:

  • Which is the warmest month in London?
    July has an average maximum temperature of 24°C (75°F) and is the warmest month of the year.
  • Which is the coldest month in London?
    The coldest month is January with an average maximum temperature of 9°C (47°F).
  • Which is the wettest month in London?
    October tops the wettest month list with 68mm (2.7in) of rainfall.
  • Which is the driest month in London?
    March is the driest month with 37mm (1.5in) of precipitation.
  • Which is the sunniest month in London?
    July is the sunniest month with an average of 219 hours of sunshine.

  • No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.