Castlerock Weather Forecast

    • 9
    • 12

    Overcast

    • 12
    • 15

    Cloudy

    • 10
    • 16

    Light rain shower

    • 10
    • 13

    Light rain shower

    • 8
    • 12

    Light rain shower

    • 8
    • 11

    Cloudy

    • 7
    • 11

    Light rain shower

Today 17 Oct Northern Ireland

Most staying dry with only some patchy light rain appearing early across southern districts. Brighter spells developing for the afternoon. Southeast breezes freshening for the afternoon. Maximum Temperature 14C.

Tonight 17 Oct Northern Ireland

The majority will stay dry with only a few light showers around the coasts. Best of the limited cloud breaks expected during the evening Minimum Temperature 10C.

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Castlerock Temperature Statistics

October Temperature

Magilligan No 2 (10km)

  • Lowest 13 October, 2025

    5 °C

  • Average October

    12.2 °C

  • Highest 3 October, 2025

    19 °C

Climate (2020–Present)

Magilligan No 2 (10km)

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  • Average Low 2020–2025

    7.5 °C

  • Average 2020–2025

    10.5 °C

  • Average High 2020–2025

    13.3 °C
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