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Hourly Forecast
Daylight Hours
07:35
Sunrise
19:17
Sunset
Moon
Waxing Gibbous
18:50
Moonrise
05:47
Moonset
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View stargazing scoreWeather in Heerlen today, September 25, 2026
Heerlen keeps a mostly sunny profile on September 25, 2026, aside from a cloudier spell around 09:00. Outside that window, bright conditions should still lead the day. Morning skies stay relatively clear, holding cloud close to 23% near 09:00. The early part of the day favours being outside.
Expect highs of 23°C and cooler readings close to 7°C. Expect humidity between 34% and 88%, most humid near 06:00. Winds stay light, near 2.3 km/h by 13:00, so the day feels still more than breezy.
Expect a more open afternoon, with limited cloud around 5% by 14:00. Residual damp risk should be lower than earlier. Horizontal visibility sits around 38.9 km, briefly nearer 25.4 km. Daylight runs from 07:35 to 19:17, lasting 11 hours 42 minutes of sunlight today.
Overall, Heerlen on September 25, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 23°C.
Frequently asked questions about weather in Heerlen
How warm does it get in Heerlen?
The warmest month in Heerlen is August, with average high temperatures of 24°C. The average temperature during this period is around 19°C.
How cold does it get in Heerlen?
The coldest month in Heerlen is January, with average low temperatures of 2°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Heerlen?
The wettest month in Heerlen is January, with an average of 83mm of precipitation.
What is the driest time of year in Heerlen?
The driest month in Heerlen is April, with an average of 51mm of precipitation.
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