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Karlsruhe Weather by Month
Average temperatures, rainfall and humidity for Karlsruhe, Germany, month by month, built from OpenWeather's historical records. Use it to see what a typical Karlsruhe month looks like before you travel — then check the live Karlsruhe forecast for the days ahead.
Warmest month
July
27°C average high
Coolest month
January
1°C average low
Wettest month
December
89 mm of rain
Driest month
February
52 mm of rain
Average temperature and rainfall in Karlsruhe by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 6°C | 1°C | -13°C / 17°C | 80 mm | 85% | 11 km/h |
| February | 8°C | 2°C | -12°C / 21°C | 52 mm | 79% | 11 km/h |
| March | 12°C | 3°C | -9°C / 26°C | 56 mm | 72% | 11 km/h |
| April | 17°C | 6°C | -4°C / 28°C | 54 mm | 68% | 9 km/h |
| May | 20°C | 10°C | 2°C / 33°C | 78 mm | 70% | 9 km/h |
| June | 26°C | 15°C | 6°C / 42°C | 71 mm | 68% | 9 km/h |
| July | 27°C | 16°C | 8°C / 39°C | 77 mm | 66% | 9 km/h |
| August | 27°C | 16°C | 7°C / 39°C | 65 mm | 69% | 8 km/h |
| September | 22°C | 12°C | 1°C / 33°C | 60 mm | 74% | 9 km/h |
| October | 16°C | 8°C | -4°C / 28°C | 64 mm | 82% | 9 km/h |
| November | 10°C | 4°C | -6°C / 22°C | 77 mm | 85% | 10 km/h |
| December | 7°C | 2°C | -14°C / 19°C | 89 mm | 86% | 10 km/h |
Best time to visit Karlsruhe
The most comfortable time to visit Karlsruhe is generally June and August to September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around December, totalling about 823 mm a year.
Travellers who prefer heat should aim for July, when highs average 27°C. December is the month to avoid if rain would spoil your plans — it averages 89 mm, roughly 2× the rainfall of February.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Karlsruhe forecast for what is happening now.