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Hourly Forecast
Daylight Hours
07:12
Sunrise
19:30
Sunset
Moon
Waxing Crescent
13:43
Moonrise
21:08
Moonset
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Weather in Arnsberg today, September 16, 2026
Expect unsettled, showery conditions in Arnsberg on September 16, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. Cloud leads the morning, peaking close to 66% near 10:00. Sunshine has little room until later in the day.
The day peaks near 18°C and cools toward 12°C. Moisture in the air spans 66%-94%, with the highest values around 21:00. Expect gentle winds, highest near 16:00 at 4.1 km/h.
Through the afternoon wet weather remains a factor, with rain chances near 98% around 17:00. Cloud also stays substantial, close to 86% near 12:00. Horizontal visibility sits around 28.3 km, briefly nearer 13.2 km. Expect sunrise at 07:12, sunset at 19:30, and 12 hours 18 minutes of sunlight today overall.
Taken together, Arnsberg looks wet enough on September 16, 2026 that flexible outdoor plans work best, with temperatures peaking near 18°C.
Frequently asked questions about weather in Arnsberg
How warm does it get in Arnsberg?
The warmest month in Arnsberg 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 Arnsberg?
The coldest month in Arnsberg 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 Arnsberg?
The wettest month in Arnsberg is January, with an average of 100mm of precipitation.
What is the driest time of year in Arnsberg?
The driest month in Arnsberg is April, with an average of 64mm of precipitation.
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