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Hourly Forecast
Daylight Hours
07:25
Sunrise
19:06
Sunset
Moon
Waxing Gibbous
18:40
Moonrise
05:37
Moonset
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View stargazing scoreWeather in Castletown today, September 25, 2026
Castletown looks cloudy on September 25, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward. Cloud leads the morning, peaking close to 100% near 09:00. Sunshine has little room until later in the day.
The temperature range runs from about 11°C up to 16°C. Expect humidity between 70% and 86%, most humid near 10:00. A lighter breeze peaks around 16:00 near 3.9 km/h.
Through the afternoon cloud remains the main feature, with cover near 100% around 12:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 33.3 km, briefly nearer 27.6 km. Expect sunrise at 07:25, sunset at 19:06, and 11 hours 40 minutes of sunlight today overall.
Taken together, overcast skies in Castletown on September 25, 2026 favour indoor or covered options, with temperatures near 16°C.
Frequently asked questions about weather in Castletown
How warm does it get in Castletown?
The warmest month in Castletown is July, with average high temperatures of 19°C. The average temperature during this period is around 16°C.
How cold does it get in Castletown?
The coldest month in Castletown is January, with average low temperatures of 4°C. The average temperature during this period is around 6°C.
What is the wettest time of year in Castletown?
The wettest month in Castletown is October, with an average of 100mm of precipitation.
What is the driest time of year in Castletown?
The driest month in Castletown is May, with an average of 61mm of precipitation.
