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Zemst — Weatherlens — Weatherlens
Belgium / Zemst Vlaams-Brabant
Updated -7 hours ago ↓ 7.9°C/decennium </> Embed code
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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. 18.0°C
+1.1 °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). 96.3u
-3.9 u vs normal
Based on 11/30 days
💨 Wind September
i Average wind speed at 10 meters above ground. 12.3km/h
Based on 11/30 days
☁ Cloud cover September
i Average cloud cover as a percentage of the sky. 71.4%
Based on 11/30 days
💧 Humidity September
i Average relative humidity at 2 meters above ground. 73.7%
Based on 11/30 days
3 days {direction, select, warm {warmer} cold {colder} other {}} than normal in a row
Monthly summary September 2026 was 1.1°C warmer than normal with an average of 18.0°C. It was drier than usual: 11.9mm of rain, 82% less than normal. Less sun than usual with 96 hours, 65% less than normal.
driest 25% — precipitation(#4/4) gloomiest 25% — sunshine(#4/4)
# Driest September in 4 years (11.9 mm)~ 96% less rain than normal (September)
Records 🔥
36.2 °C
Hottest day
01/07/2025
🥶
-7.3 °C
Coldest day
18/01/2024
🌊
29.9 mm
Wettest day
18/06/2024
☀
15.895886501736111 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% 6.4 km/h NE 0.0% 0 km/h E 4.2% 6.1 km/h SE 8.7% 6.9 km/h S 8.0% 7.6 km/h SW 48.5% 13.9 km/h W 25.8% 14.2 km/h NW 4.5% 11.4 km/h
🌡 Temperature (°C)Show table
🌧 Precipitation (mm)Show table