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
Ukkel (Uccle) — Weatherlens — Weatherlens
Belgium / Ukkel Uccle
Brussel
Updated -9 hours ago ↓ 6.6°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
Data: 11/30 (37%) 🌡 Temperature September
i Average daily temperature based on hourly measurements at 2 meters above ground. 18.4°C
+1.7 °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). 98.4u
+3.2 u vs normal
Based on 11/30 days
💨 Wind September
i Average wind speed at 10 meters above ground. 12.7km/h
Based on 11/30 days
☁ Cloud cover September
i Average cloud cover as a percentage of the sky. 70.1%
Based on 11/30 days
💧 Humidity September
i Average relative humidity at 2 meters above ground. 70.6%
Based on 11/30 days
Monthly summary September 2026 was 1.7°C warmer than normal with an average of 18.4°C. It was drier than usual: 13.1mm of rain, 81% less than normal. Less sun than usual with 98 hours, 62% less than normal.
driest 25% — precipitation(#4/4) gloomiest 25% — sunshine(#4/4)
# Driest September in 4 years (13.1 mm)~ 98% less rain than normal (September)
Records 🔥
36 °C
Hottest day
14/08/2026
🥶
-6.6 °C
Coldest day
14/01/2025
🌊
33.4 mm
Wettest day
07/09/2024
☀
15.00880859375 u
Sunniest day
21/06/2025
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 1.1% 8.2 km/h NE 0.8% 7 km/h E 2.3% 6.9 km/h SE 9.1% 8.8 km/h S 11.7% 8.6 km/h SW 46.2% 14.3 km/h W 24.6% 15.1 km/h NW 4.2% 10.2 km/h
🌡 Temperature (°C)Show table
🌧 Precipitation (mm)Show table