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Hourly Forecast
Daylight Hours
07:23
Sunrise
19:21
Sunset
Moon
Waxing Gibbous
17:40
Moonrise
01:56
Moonset
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View stargazing scoreWeather in Andernach today, September 21, 2026
Cloud cover dominates in Andernach on September 21, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. The first half of the day looks overcast, as cloud amounts reach about 96% around 10:00. Brighter weather, if it comes, waits until later.
Temperatures climb from an overnight low near 9°C toward a daytime high of about 19°C. The air stays humid, with relative humidity between 50% and 81% and the peak around 23:00. Expect gentle winds, highest near 16:00 at 3.4 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 38.8 km, briefly nearer 29.6 km. The sun rises at 07:23 and sets at 19:21, for a total of 11 hours 58 minutes of sunlight today.
The practical takeaway for Andernach on September 21, 2026 is a cloudy day that stays usable, just not particularly bright, around 19°C.
Frequently asked questions about weather in Andernach
How warm does it get in Andernach?
The warmest month in Andernach 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 Andernach?
The coldest month in Andernach 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 Andernach?
The wettest month in Andernach is January, with an average of 87mm of precipitation.
What is the driest time of year in Andernach?
The driest month in Andernach is April, with an average of 52mm of precipitation.
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