Castlerock Weather Forecast

    • 15
    • 20

    Cloudy

    • 15
    • 20

    Cloudy

    • 13
    • 21

    Cloudy

    • 14
    • 22

    Overcast

    • 14
    • 20

    Cloudy

    • 13
    • 21

    Sunny day

    • 14
    • 22

    Sunny day

Today 6 Jul Northern Ireland

Cloudy with some occasional rain or drizzle this morning, mainly across the north. Otherwise a dry day with some brightness breaking through this afternoon. Warm. Maximum temperature 22 °C.

Tonight 6 Jul Northern Ireland

Dry this evening with some late brightness. Otherwise becoming cloudy overnight with some light and patchy rain developing across the north and west at times. Minimum temperature 13 °C.

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Castlerock Temperature Statistics

July Temperature

Magilligan No 2 (10km)

  • Lowest 3 July, 2026

    12.9 °C

  • Average July

    15.3 °C

  • Highest 5 July, 2026

    18.5 °C

Climate (2021–2026)

Magilligan No 2 (10km)

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  • Average Low 2021–2026

    7.6 °C

  • Average 2021–2026

    10.6 °C

  • Average High 2021–2026

    13.4 °C
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