Heathrow Airport Weather Forecast

    • 15
    • 21

    Cloudy

    • 13
    • 23

    Cloudy

    • 16
    • 24

    Sunny day

    • 15
    • 24

    Cloudy

    • 16
    • 25

    Cloudy

    • 12
    • 24

    Sunny day

Today 10 Sep London and South East England

A dry and bright but mostly cloudy day. Cloud will thicken into the evening as outbreaks of rain spread eastward on a freshening breeze. Maximum temperature 21 °C.

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Heathrow Airport Temperature Statistics

September Temperature

Heathrow (0km)

  • Lowest 9 September, 2026

    11.5 °C

  • Average September

    18.3 °C

  • Highest 6 September, 2026

    27.6 °C

Climate (2021–2026)

Heathrow (0km)

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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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