Rest Bay Weather Forecast

    • 19
    • 20

    Overcast

    • 18
    • 20

    Cloudy

    • 14
    • 19

    Cloudy

    • 16
    • 19

    Cloudy

    • 16
    • 21

    Cloudy

    • 16
    • 19

    Cloudy

    • 14
    • 18

    Light rain shower

Today 2 Sep Wales

A cloudy and wet start to the day with rain heavy in places, especially over higher ground in the north. Rain eases a little into the afternoon, but it will remain cloudy with further outbreaks of rain at times. Maximum temperature 21 °C.

Tonight 2 Sep Wales

Remaining rather cloudy and damp overnight, with some further outbreaks of rain and drizzle, especially over higher ground. Hill fog also developing, though it will remain mild for many. Minimum temperature 11 °C.

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Rest Bay Temperature Statistics

September Temperature

St-athan (21km)

  • Lowest 1 September, 2026

    13 °C

  • Average September

    13.5 °C

  • Highest 1 September, 2026

    13.9 °C

Climate (2021–2026)

St-athan (21km)

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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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