Castlerock Weather Forecast

    • 2
    • 9

    Heavy rain

    • 4
    • 8

    Light rain

    • 5
    • 10

    Light rain

    • 3
    • 11

    Light rain shower

    • 2
    • 10

    Light rain shower

    • 3
    • 12

    Cloudy

    • 7
    • 13

    Cloudy

Today 9 Apr Northern Ireland

Bright spells and scattered showers, these turning more widespread and occasionally heavy during the afternoon. Colder than of late. Maximum temperature 11 °C.

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Castlerock Temperature Statistics

April Temperature

Magilligan No 2 (10km)

  • Lowest 2 April, 2026

    -0.3 °C

  • Average April

    8 °C

  • Highest 7 April, 2026

    17.2 °C

Climate (2021–Present)

Magilligan No 2 (10km)

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  • Average Low 2021–2026

    7.6 °C

  • Average 2021–2026

    10.5 °C

  • Average High 2021–2026

    13.3 °C
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