Castletown Weather Forecast

    • 8
    • 13

    Sunny day

    • 7
    • 11

    Partly cloudy

    • 6
    • 10

    Partly cloudy

    • 8
    • 11

    Cloudy

    • 8
    • 12

    Cloudy

    • 8
    • 13

    Cloudy

    • 8
    • 13

    Cloudy

Today 4 May South West Scotland and Lothian Borders

A mostly cloudy start with a few showers around. These will soon clear to leave a dry morning with sunny spells developing. Cloud increasing in the afternoon to bring the odd light shower but most places staying dry. Maximum temperature 15 °C.

Tonight 4 May South West Scotland and Lothian Borders

A largely dry evening with some late brightness. Mainly dry with clear spells overnight but some showers will affect East Lothian and the Borders later. Minimum temperature 5 °C.

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Castletown Temperature Statistics

May Temperature

Ronaldsway (1km)

  • Lowest 3 May, 2026

    9.7 °C

  • Average May

    10.7 °C

  • Highest 2 May, 2026

    12.9 °C

Climate (2021–Present)

Ronaldsway (1km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    11.2 °C

  • Average High 2021–2026

    13.2 °C
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