Tresilian Bay Weather Forecast

    • 10
    • 16

    Heavy rain

    • 10
    • 15

    Cloudy

    • 9
    • 15

    Cloudy

    • 7
    • 14

    Cloudy

    • 7
    • 12

    Cloudy

    • 8
    • 12

    Cloudy

    • 7
    • 13

    Cloudy

Today 2 May Wales

A bright start in the east, but rather cloudy with showery outbreaks of rain further west. The showers becoming more widespread from mid-afternoon, and turning persistent from the southeast later. Still rather warm and humid. Maximum temperature 17 °C.

Tonight 2 May Wales

Rain will become persistent overnight with some heavier bursts likely across eastern counties. The rain should clear southern counties for a time towards dawn. Minimum temperature 7 °C.

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Tresilian Bay Temperature Statistics

May Temperature

St-athan (5km)

  • Lowest 1 May, 2026

    12.3 °C

  • Average May

    13.5 °C

  • Highest 1 May, 2026

    15.7 °C

Climate (2021–Present)

St-athan (5km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    11.8 °C

  • Average High 2021–2026

    14.6 °C
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