Castlerock Weather Forecast

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    • 6

    Sunny day

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    Partly cloudy

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    Overcast

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    Overcast

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    Overcast

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    Overcast

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    Light rain

Today 26 Dec Northern Ireland

A dry Boxing Day with any early morning patchy cloud, mainly in the west, soon dispersing to leave plenty of sunshine. Light to moderate easterly winds. Maximum Temperature 7C.

Tonight 26 Dec Northern Ireland

A dry evening and night with largely clear skies. Some patchy low cloud or fog may form later in the night. Minimum Temperature -1C.

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Castlerock Temperature Statistics

December Temperature

Magilligan No 2 (10km)

  • Lowest 25 December, 2025

    0.7 °C

  • Average December

    7.7 °C

  • Highest 9 December, 2025

    16.1 °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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