Metar & Taf

Visual decoder

Weather in Greater London

Calculated from weather data of London Biggin Hill Airport (EGKB) between 2020 and 2024.

Maximum temperatures (°C)

Month Average 2024 2023 2022 2021 2020
January 6.6 6.2 7.0 6.9 5.0 8.0
February 8.3 10.0 8.9 9.4 6.5 8.6
March 9.8 8.8 10.9 9.8 9.0
April 12.9 11.9 13.0 10.0 14.9
May 16.5 16.0 17.0 13.6 17.6
June 20.3 22.3 19.6 19.8 19.0
July 22.0 20.1 24.3 21.1 20.3
August 21.1 20.3 24.3 18.8 22.1
September 18.6 21.6 17.8 19.5 18.5
October 14.4 15.6 15.6 14.5 12.5
November 9.9 9.6 11.5 9.0 11.0
December 7.6 8.8 4.0 8.1 6.7
Average 13.3 8.0 14.3 14.9 13.0 14.0

48th highest temperature of United Kingdom

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month Average 2024 2023 2022 2021 2020
January 2.8 3 3 3 2 5
February 3.9 6 4 5 3 4
March 4.8 5 5 5 3
April 5.9 6 6 3 6
May 9.6 9 11 8 10
June 13.2 14 13 14 13
July 14.9 14 16 15 14
August 14.3 14 16 13 15
September 11.8 14 12 13 11
October 9.1 10 11 10 8
November 5.8 6 8 5 6
December 4.3 6 1 5 4
Average 7.9 4.3 8.7 9.0 7.9 8.1

73rd lowest temperature of United Kingdom

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days 2024 2023 2022 2021 2020
30 °C or warmer 0 0 5 0 6
25 °C or warmer 0 16 23 10 16
20 °C or warmer 0 69 75 46 58
0 °C or colder 8 15 11 24 4

Precipitation (%)

Month Average 2024 2023 2022 2021 2020
January 14.6 10 16 8 27 16
February 17.9 25 9 13 20 25
March 13.8 27 10 10 8
April 6.9 13 4 4 5
May 6.8 5 8 12 1
June 7.3 3 5 12 10
July 7.3 12 2 9 8
August 7.9 9 5 8 9
September 6.2 6 9 4 3
October 11.9 10 8 9 25
November 15.0 22 20 7 11
December 16.3 24 8 17 17
Average 11.2 18.1 12.2 7.6 10.7 10.5

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (km/h)

Month Average 2024 2023 2022 2021 2020
January 17.5 18 20 15 16 20
February 20.4 18 15 25 21 27
March 19.6 21 17 19 22
April 16.4 16 17 16 16
May 15.8 16 15 19 16
June 15.8 16 16 13 17
July 15.5 18 15 15 16
August 15.3 14 14 16 17
September 15.4 13 15 14 16
October 17.7 14 18 19 19
November 16.9 16 20 15 17
December 18.4 19 13 19 19
Average 17.0 18.2 16.4 16.5 16.6 18.3

60th highest wind speed of United Kingdom

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month 2024 2023 2022 2021 2020
January SW SW W W SW
February SW W SW S SW
March SW E W S
April SE NE NE E
May NE SW SW NE
June E S N S
July SW SW SW SW
August SW SE SW SW
September S SW S W
October SW S SW SW
November SW SW W SW
December SW NE SW SW

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Greater London weather Q&A

What is the warmest month in Greater London?

The warmest month is July with an average temperature of 22 °C over the past years.

What is the coldest month in Greater London?

The coldest month is January with an average daytime temperature of 7 °C in the past few years.

Which month is the wettest in Greater London?

Chance of precipitation is the highest in February with a probability of around 18.0 %.

Which month is the driest in Greater London?

The least rainfall and snow can be expected in September. The probability is about 6.2 %.