Staines Reservoir Weather Forecast

    • 18
    • 23

    Partly cloudy

    • 17
    • 23

    Cloudy

    • 17
    • 24

    Cloudy

    • 12
    • 21

    Partly cloudy

    • 14
    • 19

    Cloudy

    • 12
    • 20

    Partly cloudy

Today 12 Sep London and South East England

Fine during the morning with some warm sunny spells. Becoming breezier and cloudier through the afternoon, although rain probably holding off until the overnight period. Maximum temperature 24 °C.

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Staines Reservoir Temperature Statistics

September Temperature

Heathrow (4km)

  • Lowest 9 September, 2026

    11.5 °C

  • Average September

    18.3 °C

  • Highest 6 September, 2026

    27.6 °C

Climate (2021–2026)

Heathrow (4km)

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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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