Garth (Porthmadog) Weather Forecast

    • 4
    • 8

    Sunny day

    • 10
    • 10

    Heavy rain

    • 8
    • 10

    Light rain

    • 9
    • 10

    Sunny day

    • 6
    • 9

    Cloudy

    • 5
    • 9

    Partly cloudy

Today 16 Dec Wales

Any mist and fog clearing, then a dry and increasingly bright day with some sunshine developing for many of us. Not as mild, albeit with light winds for all. Maximum Temperature 9C.

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Garth (Porthmadog) Temperature Statistics

December Temperature

Capel Curig Saws (23km)

  • Lowest 4 December, 2025

    3.1 °C

  • Average December

    8.6 °C

  • Highest 9 December, 2025

    15 °C

Climate (2020–Present)

Capel Curig Saws (23km)

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  • Average Low 2020–2025

    6.8 °C

  • Average 2020–2025

    9.8 °C

  • Average High 2020–2025

    12.7 °C
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