With a population of around 21,900, Gelnhausen sits in Hesse, Germany. The city operates in the Central European time zone.
In 2025, Gelnhausen averaged an annual temperature of 51°F, with hottest temperatures reaching 95°F in July and lowest around 16°F in November. The city received approximately 31 inches of precipitation during the year.
View historical weather for Gelnhausen · More cities in Hesse