River Foyle - Londonderry Weather Forecast

    • 12
    • 15

    Partly cloudy

    • 13
    • 17

    Partly cloudy

    • 8
    • 14

    Light rain shower

    • 11
    • 15

    Cloudy

    • 13
    • 18

    Light rain

    • 11
    • 18

    Partly cloudy

    • 9
    • 15

    Partly cloudy

Today 25 Sep Northern Ireland

Cloud and light rain initially around the east coast, which clears before mid-morning. Otherwise a day of sunny spells and a few isolated light showers, most of these confined across the far west and north. Maximum temperature 16 °C.

Tonight 25 Sep Northern Ireland

Mainly dry with clear spells most widespread in the east, but a few scattered light showers appearing west and north of Lough Neagh. Southwest winds freshening overnight. Minimum temperature 11 °C.

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River Foyle - Londonderry Temperature Statistics

September Temperature

Magilligan No 2 (29km)

  • Lowest 23 September, 2026

    7.7 °C

  • Average September

    14.5 °C

  • Highest 6 September, 2026

    22.4 °C

Climate (2021–2026)

Magilligan No 2 (29km)

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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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