With a population of around 3,100, Unterkulm sits in Aargau, Switzerland. The city operates in the Europe/Zurich time zone.
In 2025, Unterkulm averaged an annual temperature of 50°F, with hottest temperatures reaching 92°F in July and lowest around 20°F in December. The city received approximately 49 inches of precipitation during the year.
View historical weather for Unterkulm · More cities in Aargau