Illkirch-Graffenstaden Weather & Climate: Best Time to Visit

In Illkirch-Graffenstaden, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 27°C (81°F) in July to a chilly 6°C (43°F) in January.

Nighttime temperatures range from 15°C (59°F) in July to 0°C (32°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Illkirch-Graffenstaden receives a reasonable amount of rain/snowfall, with an annual precipitation of 991 mm (39 in). The wettest period in Illkirch-Graffenstaden occurs in December, which receives around 94 mm (3.7 in) of precipitation. During the driest month, April, Illkirch-Graffenstaden experiences moderate rainfall, totaling 69 mm (2.7 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Illkirch-Graffenstaden Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

In Illkirch-Graffenstaden, summer days are longer and more sunny, with daily sunshine hours peaking at 7.6 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.5 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Illkirch-Graffenstaden.

The city experiences its highest humidity in January, reaching 86%. In April, the humidity drops to its lowest level at 72%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year