The Barmouth Weather Forecast

    • 12
    • 17

    Light rain

    • 12
    • 16

    Partly cloudy

    • 13
    • 18

    Partly cloudy

    • 8
    • 15

    Light rain shower

    • 11
    • 16

    Cloudy

    • 14
    • 19

    Light rain

    • 12
    • 18

    Partly cloudy

Today 24 Sep Northern Ireland

A cloudy day with some rain, with outbreaks patchy and light east of Lough Neagh, more persistent in the west where some heavier outbreaks may develop for the late afternoon. Southerly winds strengthening for the afternoon. Maximum temperature 18 °C.

Tonight 24 Sep Northern Ireland

Persistent rain for evening, turning heavier at times, before clearing overnight, to leave only a few isolated showers come dawn, these mainly across the far west. Brisk southerly winds easing. Minimum temperature 11 °C.

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The Barmouth Temperature Statistics

September Temperature

Magilligan No 2 (11km)

  • Lowest 13 September, 2026

    9.1 °C

  • Average September

    14.8 °C

  • Highest 6 September, 2026

    22.4 °C

Climate (2021–2026)

Magilligan No 2 (11km)

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  • Average Low 2021–2026

    7.7 °C

  • Average 2021–2026

    10.6 °C

  • Average High 2021–2026

    13.4 °C
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