Portishead Weather Forecast

    • 18
    • 25

    Sunny day

    • 14
    • 19

    Cloudy

    • 14
    • 18

    Sunny day

    • 13
    • 18

    Cloudy

    • 16
    • 19

    Cloudy

    • 14
    • 20

    Partly cloudy

Today 6 Sep South West England

Outbreaks of showery clearing by mid morning. Becoming dry and rather warm with some bright or sunny spells developing. Maximum temperature 24 °C.

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Portishead Temperature Statistics

September Temperature

St-athan (47km)

  • Lowest 1 September, 2026

    13 °C

  • Average September

    18.1 °C

  • Highest 3 September, 2026

    21 °C

Climate (2021–2026)

St-athan (47km)

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  • Average Low 2021–2026

    9.1 °C

  • Average 2021–2026

    12 °C

  • Average High 2021–2026

    14.8 °C
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