Horsham Weather Forecast

    • 16
    • 19

    Light rain

    • 15
    • 21

    Cloudy

    • 9
    • 20

    Partly cloudy

    • 11
    • 21

    Sunny day

    • 12
    • 22

    Sunny day

    • 10
    • 20

    Cloudy

    • 12
    • 20

    Cloudy

Today 18 Sep London and South East England

Largely dry with bright or sunny spells through the morning. Becoming increasingly cloudy with some outbreaks of light rain and drizzle arriving by late-afternoon. Increasingly windy through the day. Temperatures near average. Maximum temperature 21 °C.

Tonight 18 Sep London and South East England

Outbreaks of light rain and drizzle should clear this evening to leave a largely dry night, with variable amounts of cloud and occasional clear spells. Windy. Staying mild. Minimum temperature 14 °C.

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Horsham Temperature Statistics

September Temperature

Charlwood (11km)

  • Lowest 1 September, 2026

    8.8 °C

  • Average September

    16.8 °C

  • Highest 6 September, 2026

    26.1 °C

Climate (2021–2026)

Charlwood (11km)

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  • Average Low 2021–2026

    7 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    16 °C
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