About Jette, Brussels Capital's Climate & Weather History

Jette, in Brussels Capital, Belgium, is home to roughly 52,500 people in the Europe/Brussels time zone at 50.9°N latitude.

In 2025, Jette recorded an average annual temperature of 54°F. The hottest temperatures reached 97°F in July; the coolest were 22°F in January. Total precipitation for the year was 25 inches, with the wettest month being January. Snowfall for the year totaled approximately 4 inches.