Weatheo

Koblenz Weather by Month

Average temperatures, rainfall and humidity for Koblenz, Germany, month by month, built from OpenWeather’s historical records. Use it to see what a typical Koblenz month looks like before you travel — then check the live Koblenz forecast for the days ahead.

Warmest month

July

26°C average high

Coolest month

January

1°C average low

Wettest month

December

68 mm of rain

Driest month

April

49 mm of rain

Average temperature and rainfall in Koblenz by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January5°C1°C-9°C / 15°C
62 mm
88%15 km/h
February7°C1°C-13°C / 20°C
53 mm
82%15 km/h
March11°C3°C-11°C / 24°C
59 mm
75%12 km/h
April15°C5°C-6°C / 27°C
49 mm
69%10 km/h
May19°C9°C-2°C / 33°C
59 mm
71%9 km/h
June24°C13°C4°C / 41°C
66 mm
70%9 km/h
July26°C15°C7°C / 39°C
65 mm
69%9 km/h
August25°C15°C6°C / 38°C
65 mm
71%9 km/h
September20°C11°C3°C / 34°C
67 mm
78%11 km/h
October15°C8°C-3°C / 26°C
60 mm
85%14 km/h
November9°C4°C-5°C / 20°C
68 mm
89%16 km/h
December7°C2°C-12°C / 18°C
68 mm
89%16 km/h

Best time to visit Koblenz

The most comfortable time to visit Koblenz is generally June to August, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rainfall is spread evenly across the months, totalling about 741 mm a year.

Travellers who prefer heat should aim for July, when highs average 26°C. December is the month to avoid if rain would spoil your plans — it averages 68 mm, roughly 1× the rainfall of the driest month (April).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Koblenz forecast for what is happening now.

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