Best year time to visit London

General weather information about London

Average annual temperature is 25.8 °C

Absolute maximum temperature: 36.9 °C

Absolute minimum temperature: 18.3 °C

Number of sunny days: 62 days

Number of rainy days: 303 days

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* Weather data for London Sierra Leone is based on climate observations for 2026 year

London air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)35.536.636.935.234.532.033.032.932.932.632.834.5
Average daytime temperature (°C)34.435.234.032.831.629.428.928.629.129.830.732.8
Average temperature (°C)26.727.427.026.826.425.024.624.624.825.025.726.1
Average night temperature (°C)21.923.023.123.723.522.822.522.622.622.722.921.5
Absolute minimum temperature (°C)19.321.921.422.522.621.921.921.321.722.122.018.3

London monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)11.011.012.012.012.012.012.012.012.012.011.011.0
Daylight mean duration (h)11.711.912.112.312.512.612.512.412.212.011.811.7
Daylight minimum duration (h)11.011.011.012.012.012.012.012.012.011.011.011.0
Sunshine mean duration (h)9.69.78.68.27.47.06.55.96.96.68.39.9
Precipitation (mm)12156019233237860365542637518017
Sunny days201261100000220
Rainy days111625293030313130312811
Snow days000000000000

London - weather forecast by months

London weather in januaryLondon weather in februaryLondon weather in marchLondon weather in aprilLondon weather in mayLondon weather in juneLondon weather in julyLondon weather in augustLondon weather in septemberLondon weather in octoberLondon weather in novemberLondon weather in december

Best time to visit London:

The best time to visit London during the most sunny months:

  • December — 9.9(h)

The largest precipitation sum in London is at

  • June — 378(mm)
  • July — 603(mm)
  • August — 655(mm)
  • September — 426(mm)
  • October — 375(mm)

    • Weather forecast in the closest to London admin centers

    Weather forecast in the closest towns to London

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    Frequently asked questions

    When is the best time to visit London?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit London.
    What is the weather like in London?
    See average temperature, rainfall and daylight hours for London by month in the table above.
    How many sunny days does London have?
    The monthly weather statistics above show sunshine and rainfall patterns for London throughout the year.