With a population of around 16,500, Illertissen sits in Bavaria, Germany. The city operates in the Central European time zone.
Recent weather here gives a sense of typical conditions: in 2025, Illertissen recorded a mean annual temperature of 49°F, ranging from 13°F lows in December to 90°F highs in July, with about 35 inches of precipitation across the year.
View historical weather for Illertissen · More cities in Bavaria