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Hourly Forecast
Daylight Hours
07:37
Sunrise
19:19
Sunset
Moon
Waxing Gibbous
18:52
Moonrise
05:49
Moonset
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View stargazing scoreWeather in Herstal today, September 25, 2026
Herstal is set for a fine, sunny day on September 25, 2026, with only limited interruptions to the clear sky. The early hours look particularly favourable for being outside. The morning sky stays heavily clouded, with cover near 100% around 06:00. Grey conditions set the early tone before any later change.
The day peaks near 23°C and cools toward 7°C. Expect humidity between 34% and 92%, most humid near 06:00. A lighter breeze peaks around 11:00 near 3.0 km/h.
Expect persistent cloud later on, with amounts around 62% by 12:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 37.8 km on average, though it can drop toward 16.3 km in thicker cloud or showers. Expect sunrise at 07:37, sunset at 19:19, and 11 hours 42 minutes of sunlight today overall.
In short, September 25, 2026 looks like a fine day in Herstal for being outside, peaking around 23°C.
Frequently asked questions about weather in Herstal
How warm does it get in Herstal?
The warmest month in Herstal is August, with average high temperatures of 23°C. The average temperature during this period is around 19°C.
How cold does it get in Herstal?
The coldest month in Herstal is January, with average low temperatures of 1°C. The average temperature during this period is around 3°C.
What is the wettest time of year in Herstal?
The wettest month in Herstal is June, with an average of 95mm of precipitation.
What is the driest time of year in Herstal?
The driest month in Herstal is April, with an average of 55mm of precipitation.
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