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

Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Daily percent of sunshine

The mean percent of sunhours during the day over the year

Monthly precipitation

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

Monthly rainy days

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

Average humidity

The mean monthly relative humidity over the year

Average wind speed

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

Weather Forecasts for London (Greater London)

SUN Jan 16
10°C | 5°C
Partly cloudy

Partly cloudy

MON Jan 17
11°C | 2°C


TUE Jan 18
9°C | 3°C


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 millimeters 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 millimeters 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 25 degrees Celsius (77°F).

Other facts from our historical climate data:

  • Which is the warmest month in London?
    July has an average maximum temperature of 23°C (74°F) and is the warmest month of the year.
  • Which is the coldest month in London?
    The coldest month is February with an average maximum temperature of 8°C (46°F).
  • Which is the wettest month in London?
    October tops the wettest month list with 73mm (2.9in) of rainfall.
  • Which is the driest month in London?
    February is the driest month with 40mm (1.6in) of precipitation.
  • Which is the sunniest month in London?
    July is the sunniest month with an average of 212 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.