Castletown Weather Forecast
- 15
- 17
Light rain
- 15
- 17
Light rain shower
- 14
- 17
Light rain shower
- 12
- 16
Light rain shower
- 13
- 16
Cloudy
- 13
- 16
Light rain shower
Today 30 Aug South West Scotland and Lothian Borders
Occasional brighter spells early to mid-morning, with most avoiding the few fleeting showers that do develop. Cloud building from the southwest from late morning, with rain reaching all parts by mid to late afternoon. Maximum Temperature 21C.
Tonight 30 Aug South West Scotland and Lothian Borders
Occasional rain early evening, clearing from the south mid to late evening, with all dry with brighter spells for dawn Sunday. Southeast winds occasionally strong across coasts. Minimum Temperature 11C.
Castletown Temperature Statistics
August Temperature
Ronaldsway (1km)
Lowest 10 August, 2025
10.9 °CAverage August
16.6 °CHighest 12 August, 2025
24.3 °C
Climate (2020–Present)
Ronaldsway (1km)
Average Low 2020–2025
8.8 °CAverage 2020–2025
11 °CAverage High 2020–2025
13.1 °C