Castletown Weather Forecast

    • 8
    • 11

    Sunny day

    • 7
    • 12

    Partly cloudy

    • 6
    • 12

    Sunny day

    • 6
    • 12

    Sunny day

    • 5
    • 13

    Sunny day

    • 6
    • 13

    Sunny day

Today 20 Apr South West Scotland and Lothian Borders

Sunny spells in the west during the morning, cloudier with a few showers in the east. Cloud spreading west in the afternoon, with isolated showers moving west into Dumfries. Maximum temperature 12 °C.

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Castletown Temperature Statistics

April Temperature

Ronaldsway (1km)

  • Lowest 2 April, 2026

    1.8 °C

  • Average April

    8.7 °C

  • Highest 8 April, 2026

    15.4 °C

Climate (2021–Present)

Ronaldsway (1km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    11.1 °C

  • Average High 2021–2026

    13.2 °C
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