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    • 17
    • 22

    Light rain

    • 16
    • 23

    Cloudy

    • 12
    • 22

    Cloudy

    • 12
    • 18

    Cloudy

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    • 19

    Light rain shower

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    • 18

    Cloudy

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    Cloudy

Today 13 Sep London and South East England

Cloudy, humid and damp, with outbreaks of rain and drizzle, and the odd heavier burst mixed in. Gradually turning drier and brighter from the northwest through the afternoon. Winds mainly light. Maximum temperature 25 °C.

Tonight 13 Sep London and South East England

Largely cloudy but some clearer periods allowing the odd mist and fog patch to form, more especially toward the east. Winds remaining mainly light. Mild. Minimum temperature 16 °C.

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September Temperature

Heathrow (21km)

  • Lowest 9 September, 2026

    11.5 °C

  • Average September

    18.1 °C

  • Highest 6 September, 2026

    27.6 °C

Climate (2021–2026)

Heathrow (21km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    12.7 °C

  • Average High 2021–2026

    16.6 °C
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