With a population of around 1,300, Jirnsum sits in Friesland, Netherlands. The city operates in the Central European time zone.
Recent weather here gives a sense of typical conditions: in 2025, Jirnsum recorded a mean annual temperature of 51°F, ranging from 22°F lows in February to 89°F highs in July, with about 33 inches of precipitation across the year.
View historical weather for Jirnsum · More cities in Friesland