Tonna Weather Forecast

    • 11
    • 19

    Light rain

    • 14
    • 18

    Partly cloudy

    • 18
    • 21

    Cloudy

    • 14
    • 20

    Partly cloudy

    • 14
    • 18

    Sunny day

    • 14
    • 18

    Partly cloudy

    • 14
    • 18

    Partly cloudy

Today 27 Sep Wales

A dry but largely cloudy start on Sunday. Heavy and persistent rain will arrive from the southwest through the morning, with strengthening winds. Mild but feeling cooler in the rain. Maximum temperature 21 °C.

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Tonna Temperature Statistics

September Temperature

St-athan (38km)

  • Lowest 26 September, 2026

    8.9 °C

  • Average September

    16.5 °C

  • Highest 6 September, 2026

    25.1 °C

Climate (2021–2026)

St-athan (38km)

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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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