Castlerock Weather Forecast

    • 9
    • 13

    Light rain

    • 8
    • 12

    Sunny day

    • 8
    • 15

    Cloudy

    • 7
    • 15

    Sunny day

    • 4
    • 16

    Sunny day

    • 4
    • 16

    Sunny day

Today 29 Mar Northern Ireland

Dry with sunny spells to start. Soon turning cloudier with rain and strong winds spreading eastwards through the morning. Rain may be heavy at times with drier and brighter spells developing through the afternoon. . Maximum Temperature 13C.

Tonight 29 Mar Northern Ireland

It will be dry this evening and mostly cloudy with some clear spells and strong winds. Remaining dry overnight with longer clear spells developing and strong winds beginning to ease. Minimum Temperature 6C.

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Castlerock Temperature Statistics

March Temperature

Magilligan No 2 (10km)

  • Lowest 19 March, 2025

    -2.7 °C

  • Average March

    8 °C

  • Highest 21 March, 2025

    15.8 °C

Climate (2020–Present)

Magilligan No 2 (10km)

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  • Average Low 2020–2025

    7.4 °C

  • Average 2020–2025

    10.3 °C

  • Average High 2020–2025

    13.1 °C
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