Castlewellan Weather Forecast

    • 13
    • 19

    Partly cloudy

    • 14
    • 20

    Cloudy

    • 12
    • 19

    Light rain shower

    • 14
    • 19

    Cloudy

    • 13
    • 19

    Light rain shower

    • 13
    • 21

    Light rain shower

    • 12
    • 20

    Light rain

Today 16 Jul Northern Ireland

Early mist and fog patches will soon clear to leave a dry day with periods of warm sunshine. Cloud will build from the southwest towards the evening. Maximum Temperature 23C.

Tonight 16 Jul Northern Ireland

A bright and mainly dry evening with cloud soon increasing from the south. Rain will spread north from the late evening, heavy at times. Minimum Temperature 10C.

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Castlewellan Temperature Statistics

July Temperature

Glenanne (36km)

  • Lowest 3 July, 2025

    6.7 °C

  • Average July

    15.8 °C

  • Highest 12 July, 2025

    25.7 °C

Climate (2020–Present)

Glenanne (36km)

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  • Average Low 2020–2025

    6.7 °C

  • Average 2020–2025

    9.6 °C

  • Average High 2020–2025

    12.7 °C
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