Castlewellan Weather Forecast

    • 7
    • 14

    Partly cloudy

    • 4
    • 15

    Partly cloudy

    • 3
    • 13

    Partly cloudy

    • 3
    • 15

    Sunny day

    • 5
    • 16

    Sunny day

    • 4
    • 16

    Partly cloudy

Today 6 May Northern Ireland

Any fog patches soon clearing this morning. Then it will be a dry day with some bright or sunny intervals, some cloud bubbling up by the afternoon. Quite warm in any afternoon sunshine. Maximum Temperature 17C.

Tonight 6 May Northern Ireland

This evening will be dry. Then the rest of the night will be dry with variable amounts of cloud and some clear spells. Light winds. Minimum Temperature 5C.

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Castlewellan Temperature Statistics

May Temperature

Glenanne (36km)

  • Lowest 5 May, 2025

    2.3 °C

  • Average May

    8.6 °C

  • Highest 2 May, 2025

    15.2 °C

Climate (2020–Present)

Glenanne (36km)

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  • Average Low 2020–2025

    6.7 °C

  • Average 2020–2025

    9.5 °C

  • Average High 2020–2025

    12.6 °C
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