London
United Kingdom
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
London, United Kingdom

The large Thames river in London overlooking the Westminster Palace and the Big Ben clock tower in London, United Kingdom, on a cloudy evening after sunset
The large Thames river in London overlooking the Westminster Palace and the Big Ben clock tower in London, United Kingdom, on a cloudy evening after sunset
January lies during the winter season of London, with an average low temperature of 2.8°C (37°F). The New Year is usually cold and gray - the overcast skies hardly allow the sun to break the cloud cover for more than a daily couple of hours. London is warmer than the majority of the United Kingdom, and the average high temperature in January rests at 8.3°C (46.9°F).
January is the snowiest month in London with 243.8mm (9.6"), while the rain is moderate at the most at 53.3mm (2.1"). Expect drizzles anytime and always carry an umbrella, raincoat or jacket to remain warm and dry. Cold and frosty January nights need warm winter clothes.

What is the coldest month in London?

January is the coldest month in London, with an average high-temperature of 8.1°C (46.6°F) and an average low-temperature of 2.3°C (36.1°F).

What is the temperature in January in London?

In London, in January, the average high-temperature is 8.1°C (46.6°F), and the average low-temperature is 2.3°C (36.1°F).

How many days does it rain in January in London?

In London, in January, during 11.1 rainfall days, 55.2mm (2.2") of precipitation is typically accumulated.

What is the average length of the day in January in London?

In London, the average length of the day in January is 8.5h.

How long on average sun shines in January in London?

In January, the average sunshine in London is 2h.

What is the UV index reading in January in London?

The average daily maximum UV index in January in London, United Kingdom, is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the UV radiation.
Average temperature in January - London, United Kingdom
  • Average high temperature in January: 8.1°C

The warmest month (with the highest average high temperature) is July (23.5°C).
The month with the lowest average high temperature is January (8.1°C).

  • Average low temperature in January: 2.3°C

The month with the highest average low temperature is July (13.9°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).

Average rainfall in January - London, United Kingdom
  • Average rainfall in January: 55.2mm

The wettest month (with the highest rainfall) is October (68.5mm).
The driest month (with the lowest rainfall) is February (40.9mm).

Average rainfall days in January - London, United Kingdom
  • Average rainfall days in January: 11.1 days

The month with the highest number of rainy days is January (11.1 days).
The month with the lowest number of rainy days is August (7.5 days).

Average daylight in January / Average sunshine in January - London, United Kingdom
  • Average daylight in January: 8.5h

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

  • Average sunshine in January: 2h

Months with most sunshine are June and July (Average sunshine: 6.8h).
The month with least sunshine is December (Average sunshine: 1.7h).

Average UV index in January - London, United Kingdom
  • Average UV index in January: 1

Months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 0).