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Zaventem — Weatherlens — Weatherlens
Belgium / Zaventem Vlaams-Brabant
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Jaren: 2026 2025 2024 2023 2020
2026 2025 2024 2023 2020
2026 2025 2024 2023 2020
Data: 11/30 (37%) 🌡 Temperature September
i Average daily temperature based on hourly measurements at 2 meters above ground. 18.6°C
+1.8 °C vs normal
Based on 11/30 days
🌧 Precipitation September
i Total precipitation including rain, snow, and drizzle.
☀ Sunshine September
i Total hours of direct sunshine (>120 W/m²). 101.4u
+2.5 u vs normal
Based on 11/30 days
💨 Wind September
i Average wind speed at 10 meters above ground. 12.9km/h
Based on 11/30 days
☁ Cloud cover September
i Average cloud cover as a percentage of the sky. 71.0%
Based on 11/30 days
💧 Humidity September
i Average relative humidity at 2 meters above ground. 70.7%
Based on 11/30 days
Monthly summary September 2026 was 1.8°C warmer than normal with an average of 18.6°C. It was drier than usual: 14.6mm of rain, 77% less than normal. Less sun than usual with 101 hours, 62% less than normal.
warmest 25% — temperature(#1/4) driest 25% — precipitation(#4/4) gloomiest 25% — sunshine(#4/4)
# Warmest September in 4 years (18.6°C)# Driest September in 4 years (14.6 mm)~ 95% less rain than normal (September)
Records 🔥
36.3 °C
Hottest day
01/07/2025
🥶
-7.4 °C
Coldest day
14/01/2025
🌊
28.900002 mm
Wettest day
09/10/2024
☀
15.884905598958333 u
Sunniest day
25/06/2023
Download Temperature (°C) CSV Download Precipitation (mm) CSV
Cloud cover 2026 vs 2025 vs 2024 vs normal
Wind Rose Wind direction distribution — September 2026
Dir % Avg N 0.4% 7 km/h NE 0.0% 0 km/h E 1.1% 6.6 km/h SE 8.7% 7.7 km/h S 11.0% 8.9 km/h SW 48.9% 14.2 km/h W 23.5% 15 km/h NW 6.4% 10.4 km/h
🌡 Temperature (°C)Show table
🌧 Precipitation (mm)Show table