Castlerock Weather Forecast

    • 14
    • 21

    Cloudy

    • 15
    • 19

    Cloudy

    • 15
    • 19

    Light rain shower

    • 15
    • 19

    Light rain shower

    • 14
    • 18

    Heavy rain

    • 14
    • 19

    Cloudy

Today 19 Jul Northern Ireland

A rather cloudy start then brightening up with some sunny intervals. Scattered heavy showers then breaking out by the afternoon, mainly in the west. Warm with light winds. Maximum Temperature 22C.

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Castlerock Temperature Statistics

July Temperature

Magilligan No 2 (10km)

  • Lowest 2 July, 2025

    6.7 °C

  • Average July

    16.2 °C

  • Highest 12 July, 2025

    29.9 °C

Climate (2020–Present)

Magilligan No 2 (10km)

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  • Average Low 2020–2025

    7.4 °C

  • Average 2020–2025

    10.4 °C

  • Average High 2020–2025

    13.2 °C
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