Skip to content Weatherlens
Weather data: Open-Meteo.com (CC BY 4.0)
Historical data, no forecasts. Climate normals based on 30-year average.
Copernicus/ERA5 : Contains modified Copernicus Climate Change Service information. Neither the European Commission nor ECMWF is responsible for any use of the information.
Weather Reports API Privacy Contact
Hoeilaart — Weatherlens — Weatherlens
Belgium / Hoeilaart Vlaams-Brabant
Updated -14 hours ago ↓ 8.1°C/decennium </> Embed code
Share link Share as image
Jaren: 2026 2025 2024 2023 2020
2026 2025 2024 2023 2020
2026 2025 2024 2023 2020
🌡 Temperature September
i Average daily temperature based on hourly measurements at 2 meters above ground. 15.5°C
-1.1 °C vs normal
🌧 Precipitation September
i Total precipitation including rain, snow, and drizzle.
☀ Sunshine September
i Total hours of direct sunshine (>120 W/m²). 251.4u
-17.6 u vs normal
💨 Wind September
i Average wind speed at 10 meters above ground. 14.2km/h
☁ Cloud cover September
i Average cloud cover as a percentage of the sky. 60.0%
💧 Humidity September
i Average relative humidity at 2 meters above ground. 80.8%
3 days {direction, select, warm {warmer} cold {colder} other {}} than normal in a row
Monthly summary September 2024 was 1.1°C colder than normal with an average of 15.5°C. It was wetter than usual: 112.4mm of rain, 49% more than normal. Sunshine was close to average with 251 hours.
coldest 33% — temperature(#3/3) wettest 33% — precipitation(#1/3) gloomiest 33% — sunshine(#3/3)
# Coldest September in 3 years (15.5°C)# Wettest September in 3 years (112.4 mm)~ 95% less rain than normal (September)— 3 summer days (max ≥ 25°C)! Daily record: 30.5°C on 1 September
Records 🔥
35.9 °C
Hottest day
31/07/2020
🥶
-7.9 °C
Coldest day
14/01/2025
🌊
39.5 mm
Wettest day
07/09/2024
☀
15.878899739583334 u
Sunniest day
24/06/2023
Download Temperature (°C) CSV Download Precipitation (mm) CSV
Cloud cover 2024 vs 2025 vs 2024 vs normal
Wind Rose Wind direction distribution — September 2024
Dir % Avg N 6.3% 11 km/h NE 13.3% 16.4 km/h E 6.4% 11.1 km/h SE 10.7% 10.4 km/h S 13.9% 13.6 km/h SW 28.9% 17.6 km/h W 13.8% 12 km/h NW 6.8% 12.3 km/h
🌡 Temperature (°C)Show table
🌧 Precipitation (mm)Show table