January weather forecast
Brentford, United Kingdom

January

Weather in January

January, the same as December, in Brentford, United Kingdom, is a frosty winter month, with an average temperature varying between 6.8°C (44.2°F) and 2°C (35.6°F).

Temperature

January, with its average high-temperature of 6.8°C (44.2°F) and an average low-temperature of 2°C (35.6°F), holds the record as the coldest month.

Humidity

The average relative humidity in January in Brentford is 87%.

Rainfall

In Brentford, during January, the rain falls for 14.6 days and regularly aggregates up to 30mm (1.18") of precipitation. In Brentford, during the entire year, the rain falls for 167.7 days and collects up to 396mm (15.59") of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Brentford, during January, snow falls for 2.4 days and regularly aggregates up to 16mm (0.63") of snow. In Brentford, United Kingdom, during the entire year, snow falls for 8.8 days and aggregates up to 55mm (2.17") of snow.

Daylight

In January, the average length of the day is 8h and 27min.
On the first day of January, sunrise is at 8:06 am and sunset at 4:02 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:47 pm GMT.

Sunshine

In Brentford, the average sunshine in January is 4.2h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: In January, the maximum UV index of 2 translates into these guidelines:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

What is the coldest month in Brentford?
Brentford's coldest temperatures are experienced in January, with average high temperatures of 6.8°C (44.2°F) and lows of 2°C (35.6°F).
Is it cold in Brentford during January?
The high-temperature during January is 6.8°C (44.2°F) and the low-temperature is 2°C (35.6°F).
What is the average humidity in January in Brentford?
The average relative humidity in January in Brentford, United Kingdom, is 87%.
How much does it rain in Brentford in January?
In Brentford, United Kingdom, in January, it is raining for 14.6 days, with typically 30mm (1.18") of accumulated precipitation.
How many days does it snow in January in Brentford?
In Brentford, United Kingdom, during January, snow falls for 2.4 days and regularly aggregates up to 16mm (0.63") of snow.
How many hours of daylight does Brentford have in January?
In Brentford, United Kingdom, the average day length in January is 8h and 27min.
When are sunrise and sunset in January in Brentford?
In January, on the first day of the month, sunrise is at 8:06 am and sunset at 4:02 pm. On the last day of the month, in Brentford, sunrise is at 7:41 am and sunset at 4:47 pm GMT.
How long on average sun shines in January in Brentford?
In January, the average sunshine duration in Brentford is 4.2h.
When is the lowest UV index in Brentford?
The months with the lowest UV index in Brentford are January, February, November and December, with an average maximum UV index of 2.
How high is the UV index in January in Brentford?
In January, the average daily maximum UV index in Brentford, United Kingdom, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January - Brentford, United Kingdom
Average temperature in January
Brentford, United Kingdom
  • Average high temperature in January: 6.8°C

The warmest month (with the highest average high temperature) is July (22.1°C).
The month with the lowest average high temperature is January (6.8°C).

  • Average low temperature in January: 2°C

The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (2°C).

Average pressure in January - Brentford, United Kingdom
Average pressure in January
Brentford, United Kingdom
  • Average pressure in January: 1014.5mbar

The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).

Average wind speed in January - Brentford, United Kingdom
Average wind speed in January
Brentford, United Kingdom
  • Average wind speed in January: 16.6km/h

The windiest month (with the highest average wind speed) is February (17.5km/h).
The calmest months (with the lowest average wind speed) are July and September (12.7km/h).

Average humidity in January - Brentford, United Kingdom
Average humidity in January
Brentford, 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 (73%).

Average rainfall in January - Brentford, United Kingdom
Average rainfall in January
Brentford, United Kingdom
  • Average rainfall in January: 30mm

The wettest month (with the highest rainfall) is December (46mm).
The driest month (with the least rainfall) is April (22mm).

Average rainfall days in January - Brentford, United Kingdom
Average rainfall days in January
Brentford, United Kingdom
  • Average rainfall days in January: 14.6 days

The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is September (11.9 days).

Average snowfall in January - Brentford, United Kingdom
Average snowfall in January
Brentford, United Kingdom
  • Average snowfall in January: 16mm

The month with the highest snowfall is February (18mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in January - Brentford, United Kingdom
Average snowfall days in January
Brentford, United Kingdom
  • Average snowfall days in January: 2.4 days

The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January / Average sunshine in January - Brentford, United Kingdom
Average daylight in January /
Average sunshine in January
Brentford, United Kingdom
  • Average daylight in January: 8h and 3min

The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is July (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

Average sunshine days in January - Brentford, United Kingdom
Average sunshine days in January
Brentford, United Kingdom
  • Average sunshine days in January: 13 days

The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (11.2 days).

Average UV index in January - Brentford, United Kingdom
Average UV index in January
Brentford, 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, November and December (UV index 2).

Average cloud cover in January - Brentford, United Kingdom
Average cloud cover in January
Brentford, 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 April (Cloud cover 49).

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

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

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