November weather - Autumn 2025 - London, United Kingdom

November in London is typically characterized by colder temperatures and an increase in average rainfall. The transition from October is marked with shorter daylight hours, announcing the arrival of winter. Looking ahead to December, colder and shorter days are on the horizon. It’s notably a month of atmospheric pressure changes, often linked to the onset of more severe winter weather. The lowest atmospheric pressure recorded throughout the year is in November, at an average of 1010.6mb.

Temperature

As November arrives, London's weather displays a minor decrease in high-temperatures, transitioning from October's refreshing 15.3°C (59.5°F) to a cool 10.4°C (50.7°F). London experiences an average nighttime temperature of 5.7°C (42.3°F) in November, reflecting a minor difference from the day's peak.

Humidity

In November, the average relative humidity is 86%.

Rainfall

In November, the rain falls for 12.6 days. Throughout November, 34mm (1.34") of precipitation is accumulated. In London, during the entire year, the rain falls for 151.7 days and collects up to 370mm (14.57") of precipitation.

Snowfall

January through April, November and December are months with snowfall in London. November is the first month it typically snows. Throughout November, in the average 0.3 snowfall days, it receives 2mm (0.08") of snow. Throughout the year, there are 7.7 snowfall days, and 50mm (1.97") of snow is accumulated.

Daylight

In London, the average length of the day in November is 8h and 53min.
On the first day of November in London, sunrise is at 6:55 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 3:55 pm GMT.

Sunshine

In November, the average sunshine is 4h.

UV index

The months with the lowest UV index in London are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 2 in November transforms into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.