See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
14°
Overcast
Feels Like: 17°
Min: 9°
Max: 19°
The next few hours will be overcast, with today reaching 19°C and dropping to 9°C. The coming days will be cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:22
Sunrise
19:20
Sunset
Moon
Waxing Gibbous
17:38
Moonrise
01:55
Moonset
Daily Forecast
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Tuesday
Wednesday
Thursday
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Wednesday
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View stargazing scoreWeather in Koblenz today, September 21, 2026
Koblenz may turn murky on September 21, 2026, with fog or mist reducing clarity at times. Early travel in particular may need extra care. The first half of the day looks overcast, as cloud amounts reach about 94% around 11:00. Brighter weather, if it comes, waits until later.
Expect highs of 19°C and cooler readings close to 9°C. Moisture in the air spans 51%-81%, with the highest values around 23:00. A lighter breeze peaks around 17:00 near 3.5 km/h.
Afternoon skies stay clogged, peaking close to 100% near 12:00. The grey theme continues rather than clearing out. Visibility holds near 39.7 km, though it can fall to 34.0 km. Sunrise is at 07:22 and sunset at 19:20, giving 11 hours 58 minutes of sunlight today.
Overall, Koblenz on September 21, 2026 needs patience with visibility, especially early, even as temperatures reach about 19°C.
Frequently asked questions about weather in Koblenz
How warm does it get in Koblenz?
The warmest month in Koblenz 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 Koblenz?
The coldest month in Koblenz is January, with average low temperatures of 0°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Koblenz?
The wettest month in Koblenz is June, with an average of 77mm of precipitation.
What is the driest time of year in Koblenz?
The driest month in Koblenz is April, with an average of 50mm of precipitation.
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