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Grimbergen — Weatherlens — Weatherlens
Belgium / Grimbergen Vlaams-Brabant
Updated -15 hours ago ↓ 7.6°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: 12/30 (40%) 🌡 Temperature September
i Average daily temperature based on hourly measurements at 2 meters above ground. 18.3°C
+1.5 °C vs normal
Based on 12/30 days
🌧 Precipitation September
i Total precipitation including rain, snow, and drizzle.
☀ Sunshine September
i Total hours of direct sunshine (>120 W/m²). 107.4u
-1.6 u vs normal
Based on 12/30 days
💨 Wind September
i Average wind speed at 10 meters above ground. 13.1km/h
Based on 12/30 days
☁ Cloud cover September
i Average cloud cover as a percentage of the sky. 70.9%
Based on 12/30 days
💧 Humidity September
i Average relative humidity at 2 meters above ground. 72.5%
Based on 12/30 days
Monthly summary September 2026 was 1.5°C warmer than normal with an average of 18.3°C. It was drier than usual: 11.7mm of rain, 83% less than normal. Less sun than usual with 107 hours, 61% less than normal.
driest 25% — precipitation(#4/4) gloomiest 25% — sunshine(#4/4)
# Driest September in 4 years (11.7 mm)~ 97% less rain than normal (September)
Records 🔥
35.9 °C
Hottest day
14/08/2026
🥶
-7.4 °C
Coldest day
18/01/2024
🌊
29.2 mm
Wettest day
09/10/2024
☀
15.901100260416667 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 0.0% 0 km/h NE 0.3% 5.5 km/h E 1.0% 7.1 km/h SE 6.9% 7.8 km/h S 10.4% 9.3 km/h SW 50.0% 14.2 km/h W 27.8% 14.5 km/h NW 3.5% 12.3 km/h
🌡 Temperature (°C)Show table
🌧 Precipitation (mm)Show table