Garth (Porthmadog) Weather Forecast

    • 13
    • 16

    Cloudy

    • 12
    • 16

    Partly cloudy

    • 16
    • 16

    Light rain

    • 13
    • 17

    Cloudy

    • 14
    • 17

    Cloudy

    • 15
    • 18

    Overcast

    • 12
    • 17

    Light rain

Today 16 Sep Wales

A day of sunny spells and scattered showers. Sunshine turning hazier later in the afternoon with outbreaks of rain arriving from the west by the evening. Temperatures around average and winds falling lighter. Maximum temperature 17 °C.

Tonight 16 Sep Wales

Cloud thickens and lowers from the west with outbreaks of rain following, locally heavy through the early hours. Turning breezy and remaining mild. Minimum temperature 13 °C.

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Garth (Porthmadog) Temperature Statistics

September Temperature

Capel Curig Saws (23km)

  • Lowest 10 September, 2026

    6.7 °C

  • Average September

    14.7 °C

  • Highest 6 September, 2026

    21.8 °C

Climate (2021–2026)

Capel Curig Saws (23km)

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  • Average Low 2021–2026

    7 °C

  • Average 2021–2026

    10 °C

  • Average High 2021–2026

    12.9 °C
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