January weather forecast
Brighton, United Kingdom

Brown sandy shores of Brighton Beach in the United Kingdom, with a background view of the city buildings
Brown sandy shores of Brighton Beach in the United Kingdom, with a background view of the city buildings

Weather in January

January, the same as December, in Brighton, United Kingdom, is another chilly winter month, with an average temperature fluctuating between 4.3°C (39.7°F) and 7.5°C (45.5°F).

Temperature

January and February, with an average high-temperature of 7.5°C (45.5°F), are the coldest months.

Humidity

January and December, with an average relative humidity of 85%, are the most humid months.

Rainfall

In Brighton, United Kingdom, during January, the rain falls for 16.9 days and regularly aggregates up to 44mm (1.73") of precipitation. Throughout the year, in Brighton, there are 183 rainfall days, and 470mm (18.5") of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. January is the month with the most snowfall. Snow falls for 1.7 days and accumulates 8mm (0.31") of snow.

Sea temperature

In January, the average sea temperature is 9.3°C (48.7°F).
Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

Daylight

In January, the average length of the day is 8h and 32min.
On the first day of January in Brighton, sunrise is at 8:02 am and sunset at 4:05 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:50 pm GMT.

Sunshine

The average sunshine in January is 4.2h.

UV index

The months with the lowest UV index in Brighton are January, February and November, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 in January transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What are the coldest months in Brighton?

The coldest months in Brighton, United Kingdom, are January and February, with an average high-temperature of 7.5°C (45.5°F).

What are the most humid months in Brighton?

January and December, with an average relative humidity of 85%, are most humid months in Brighton.

What is the average humidity in January in Brighton?

In Brighton, United Kingdom, the average relative humidity in January is 85%.

How much does it rain in Brighton in January?

In Brighton, in January, during 16.9 rainfall days, 44mm (1.73") of precipitation is typically accumulated.

What is the snowiest month in Brighton?

The month with the most snowfall is January, when snow falls for 1.7 days and typically aggregates up to 8mm (0.31") of snow.

How much does it snow in Brighton in January?

In January, it is snowing for 1.7 days. Throughout January, 8mm (0.31") of snow is accumulated.

What is the sea water temperature in January in Brighton?

In January, the average sea temperature in Brighton, United Kingdom, is 9.3°C (48.7°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

How many hours of daylight does Brighton have in January?

The average day length in January in Brighton, United Kingdom, is 8h and 32min.

When is the sunrise / sunset in January in Brighton?

On the first day of January, sunrise is at 8:02 am and sunset at 4:05 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:50 pm GMT.

How many hours of sunshine does Brighton have in January?

In Brighton, United Kingdom, the average sunshine duration in January is 4.2h.

What are the months with the lowest UV index in Brighton?

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

What is the UV index intensity in January in Brighton?

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to UV radiation.

Average temperature in January
Brighton, United Kingdom

Average temperature in January - Brighton, United Kingdom
  • Average high temperature in January: 7.5°C

The warmest month (with the highest average high temperature) is August (19.7°C).
The months with the lowest average high temperature are January and February (7.5°C).

  • Average low temperature in January: 4.3°C

The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is February (4.2°C).

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Average pressure in January
Brighton, United Kingdom

Average pressure in January - Brighton, United Kingdom
  • Average pressure in January: 1015.2mbar

The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1011mbar).

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Average wind speed in January
Brighton, United Kingdom

Average wind speed in January - Brighton, United Kingdom
  • Average wind speed in January: 23.2km/h

The windiest month (with the highest average wind speed) is December (24.6km/h).
The calmest month (with the lowest average wind speed) is July (16.8km/h).

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Average humidity in January
Brighton, United Kingdom

Average humidity in January - Brighton, United Kingdom
  • Average humidity in January: 85%

The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are August and September (79%).

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Average rainfall in January
Brighton, United Kingdom

Average rainfall in January - Brighton, United Kingdom
  • Average rainfall in January: 44mm

The wettest months (with the highest rainfall) are November and December (59mm).
The driest month (with the least rainfall) is April (23mm).

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Average rainfall days in January
Brighton, United Kingdom

Average rainfall days in January - Brighton, United Kingdom
  • Average rainfall days in January: 16.9 days

The month with the highest number of rainy days is November (18.5 days).
The month with the least rainy days is September (12.8 days).

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Average snowfall in January
Brighton, United Kingdom

Average snowfall in January - Brighton, United Kingdom
  • Average snowfall in January: 8mm

The month with the highest snowfall is January (8mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in January
Brighton, United Kingdom

Average snowfall days in January - Brighton, United Kingdom
  • Average snowfall days in January: 1.7 days

The months with the highest number of snowfall days are January and February (1.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in January
Brighton, United Kingdom

Average sea temperature in January - Brighton, United Kingdom
  • Average sea temperature in January: 9.3°C

The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (8.3°C).

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

Average daylight in January / Average sunshine in January - Brighton, United Kingdom
  • Average daylight in January: 8h and 32min

The month with the longest days is June (Average daylight: 16h and 26min).
The month with the shortest days is December (Average daylight: 8h and 2min).

  • Average sunshine in January: 4h and 12min

The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

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Average sunshine days in January
Brighton, United Kingdom

Average sunshine days in January - Brighton, United Kingdom
  • Average sunshine days in January: 10.1 days

The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is November (8.2 days).

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Average UV index in January
Brighton, United Kingdom

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

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

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Average cloud cover in January
Brighton, United Kingdom

Average cloud cover in January - Brighton, United Kingdom
  • Average cloud cover in January: 57

The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 40).

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Average visibility in January
Brighton, United Kingdom

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

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).

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