Monthly weather forecast and climate
London, United Kingdom

The large Thames river overlooking the Westminster Palace and the Big Ben clock tower in London, United Kingdom
The large Thames river overlooking the Westminster Palace and the Big Ben clock tower in London, United Kingdom
January, the same as December, in London, United Kingdom, is a frosty winter month, with temperature in the range of an average high of 6.8°C (44.2°F) and an average low of 2.2°C (36°F). January is the coldest month, with an average high-temperature of 6.8°C (44.2°F) and an average low-temperature of 2.2°C (36°F). Weather in January »

February, the last month of the winter, in London, is another chilly month, with average temperature ranging between max 7.6°C (45.7°F) and min 2.6°C (36.7°F). In February, the average high-temperature is almost the same as in January - a still frosty 7.6°C (45.7°F). Weather in February »

March, the first month of the spring, in London, is a cool month, with average temperature varying between 3.7°C (38.7°F) and 10.6°C (51.1°F). In March, the average high-temperature slightly increases, from a chilly 7.6°C (45.7°F) in February, to a fresh 10.6°C (51.1°F). Weather in March »

April is a moderate spring month in London, United Kingdom, with average temperature fluctuating between 5.5°C (41.9°F) and 14.3°C (57.7°F). In London, United Kingdom, the average high-temperature marginally rises, from a fresh 10.6°C (51.1°F) in March, to a moderate 14.3°C (57.7°F). Weather in April »

The last month of the spring, May, is a comfortable month in London, United Kingdom, with average temperature fluctuating between 8.3°C (46.9°F) and 16.8°C (62.2°F). In May, the average high-temperature is relatively the same as in April - an enjoyable 16.8°C (62.2°F). Weather in May »

June, the first month of the summer, in London, is also an enjoyable month, with average temperature varying between 11°C (51.8°F) and 19.8°C (67.6°F). In London, the average high-temperature in June slightly increases, from 16.8°C (62.2°F) in May, to a still enjoyable 19.8°C (67.6°F). Weather in June »

July in London, United Kingdom, is a pleasant summer month, with temperature in the range of an average low of 13.5°C (56.3°F) and an average high of 22.3°C (72.1°F). July is the warmest month, with an average high-temperature of 22.3°C (72.1°F) and an average low-temperature of 13.5°C (56.3°F). Weather in July »

August, the last month of the summer, in London, is also an agreeable month, with average temperature ranging between max 21.9°C (71.4°F) and min 13.8°C (56.8°F). In London, the average high-temperature in August is almost the same as in July - a still pleasant 21.9°C (71.4°F). Weather in August »

September, the first month of the autumn, in London, is also an enjoyable month, with average temperature ranging between min 11.3°C (52.3°F) and max 19°C (66.2°F). In September, the average high-temperature is almost the same as in August - an enjoyable 19°C (66.2°F). Weather in September »

October, the same as September, in London, United Kingdom, is another mild autumn month, with temperature in the range of an average low of 9.2°C (48.6°F) and an average high of 15.3°C (59.5°F). In October, the average high-temperature marginally drops, from a comfortable 19°C (66.2°F) in September, to a moderate 15.3°C (59.5°F). Weather in October »

The last month of the autumn, November, is also a fresh month in London, United Kingdom, with average temperature fluctuating between 10.4°C (50.7°F) and 5.7°C (42.3°F). In London, the average high-temperature slightly decreases, from a moderate 15.3°C (59.5°F) in October, to a cool 10.4°C (50.7°F). Weather in November »

The first month of the winter, December, is still a chilly month in London, United Kingdom, with average temperature varying between 3.5°C (38.3°F) and 7.8°C (46°F). In London, United Kingdom, the average high-temperature is essentially the same as in November - a frosty 7.8°C (46°F). Weather in December »

What is the coldest month in London?

The coldest month in London is January, with an average high-temperature of 6.8°C (44.2°F) and an average low-temperature of 2.2°C (36°F).

How much does it rain in London?

In London, United Kingdom, during the entire year, the rain falls for 151.7 days and collects up to 370mm (14.57") of precipitation.

When does it snow in London?

January through April, November and December are months with snowfall in London.

How much does it snow in London?

In London, United Kingdom, during the entire year, snow falls for 7.7 days, and aggregates up to 50mm (1.97") of snow.

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

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

What is the snowiest month in London?

The month with the most snowfall in London is February when snow falls for 2.5 days and typically aggregates up to 16mm (0.63") of snow.

What is the month with the least sunshine in London?

With an average of 3.6h of sunshine, February has the least sunshine of the year in London, United Kingdom.

What is the driest month in London?

April is the month with the least rainfall in London. Rain falls for 13.1 days and accumulates 22mm (0.87") of precipitation.

When it does not snow in London?

May through October are months without snowfall.

What is the rainiest month in London?

June is the month with the most rainfall in London, United Kingdom. Rain falls for 16 days and accumulates 45mm (1.77") of precipitation.

When are the longest days in London?

The month with the longest days is June, with an average of 16.5h of daylight.

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

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

What is the warmest month in London?

July is the warmest month, with an average high-temperature of 22.3°C (72.1°F) and an average low-temperature of 13.5°C (56.3°F).

What is the least humid month in London?

The least humid month is August, with an average relative humidity of 72%.

What month has the most sunshine in London?

The month with the most sunshine in London, United Kingdom, is August, with an average of 7.9h of sunshine.

What is the most humid month in London?

The most humid month is December, with an average relative humidity of 88%.

What is the month with the shortest days in London?

December has the shortest days of the year in London, United Kingdom, with an average of 7.9h of daylight.
Average temperature - London, United Kingdom
Average pressure - London, United Kingdom

The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).

Average wind speed - London, United Kingdom

The windiest month (with the highest average wind speed) is February (17.3km/h).
The calmest month (with the lowest average wind speed) is September (12.6km/h).

Average humidity - London, United Kingdom
Average rainfall - London, United Kingdom
Average rainfall days - London, United Kingdom

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is September (9.8 days).

Average snowfall - London, United Kingdom
Average snowfall days - London, United Kingdom

The month with the highest number of snowfall days is February (2.5 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - London, United Kingdom

The month with the longest days is June (Average daylight: 16.5h).
The month with the shortest days is December (Average daylight: 7.9h).

The month with the most sunshine is August (Average sunshine: 7.9h).
The month with the least sunshine is February (Average sunshine: 3.6h).

Average sunshine days - London, United Kingdom

The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is June (12.2 days).

Average UV index - London, United Kingdom
Average visibility - London, United Kingdom

Months with the highest visibility are January, February, March, April, May, June, July, August, October and December (9km).
Months with the lowest visibility are September and November (8km).