January 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

Weather in January

January, the same as December, in London, United Kingdom, is a frosty winter month, with average temperature fluctuating between 6.8°C (44.2°F) and 2.2°C (36°F).

Temperature

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).

Humidity

In London, the average relative humidity is 87%.

Rainfall

In January, in London, the rain falls for 11.2 days. Throughout January, 23mm (0.91") 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, United Kingdom, during 2.2 snowfall days, 15mm (0.59") of snow is typically accumulated. Throughout the year, in London, United Kingdom, there are 7.7 snowfall days, and 50mm (1.97") of snow is accumulated.

Daylight

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

Sunshine

In January, the average sunshine in London is 4.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 in January transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in London?

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).

What is the temperature in January in London?

The average high-temperature, in January, in London, United Kingdom, is 6.8°C (44.2°F), while the average low-temperature is 2.2°C (36°F).

What is the average humidity in January in London?

In London, United Kingdom, the average relative humidity in January is 87%.

How much does it rain in London in January?

In London, in January, it is raining for 11.2 days, with typically 23mm (0.91") of accumulated precipitation.

How many days does it snow in January in London?

In January, in London, United Kingdom, it is snowing for 2.2 days. Throughout January, 15mm (0.59") of snow is accumulated.

How many hours of daylight does London have in January?

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

How long on average sun shines in January in London?

The average sunshine in January in London is 4.1h.

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

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

What is the UV index reading in January in London?

The average daily maximum UV index in January in London, United Kingdom, is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the UV radiation.

Average temperature in January
London, United Kingdom

Average temperature in January - London, United Kingdom
  • Average high temperature in January: 6.8°C

The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (6.8°C).

  • Average low temperature in January: 2.2°C

The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).

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Average pressure in January
London, United Kingdom

Average pressure in January - London, United Kingdom
  • Average pressure in January: 1014.6mbar

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

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Average wind speed in January
London, United Kingdom

Average wind speed in January - London, United Kingdom
  • Average wind speed in January: 16.5km/h

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).

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Average humidity in January
London, United Kingdom

Average humidity in January - London, United Kingdom
  • Average humidity in January: 87%

The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (72%).

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Average rainfall in January
London, United Kingdom

Average rainfall in January - London, United Kingdom
  • Average rainfall in January: 23mm

The wettest month (with the highest rainfall) is June (45mm).
The driest month (with the least rainfall) is April (22mm).

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Average rainfall days in January
London, United Kingdom

Average rainfall days in January - London, United Kingdom
  • Average rainfall days in January: 11.2 days

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).

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Average snowfall in January
London, United Kingdom

Average snowfall in January - London, United Kingdom
  • Average snowfall in January: 15mm

The month with the highest snowfall is February (16mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in January
London, United Kingdom

Average snowfall days in January - London, United Kingdom
  • Average snowfall days in January: 2.2 days

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).

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Average daylight in January /
Average sunshine in January
London, United Kingdom

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 the shortest days is December (Average daylight: 7.9h).

  • Average sunshine in January: 4.1h

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

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Average sunshine days in January
London, United Kingdom

Average sunshine days in January - London, United Kingdom
  • Average sunshine days in January: 16.8 days

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

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Average UV index in January
London, United Kingdom

Average UV index in January - London, United Kingdom
  • Average UV index in January: 2

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in January
London, United Kingdom

Average cloud cover in January - London, United Kingdom
  • Average cloud cover in January: 58

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 49).

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Average visibility in January
London, United Kingdom

Average visibility in January - London, United Kingdom
  • Average visibility in January: 9km

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).

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