September 2026
Historical dataDaily high, low, and average
Most notable conditions during this period
Load the same period from the previous 15 years.
Key findings from analysis for selected period
Average highs of 21.7°C in Brussels. Mild, comfortable temperatures.
Moderate rainfall during this period (43% of days).
The most extreme day in this period:
Hottest day: 27.6°C
Average humidity of 73% indicates persistently moist air conditions. Heat sensation amplified during warm periods (21.7°C average temperature).