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
Boom — Weatherlens — Weatherlens
Belgium / Boom Antwerpen
Updated 0 hours ago </> 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. 18.1°C
+1.3 °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). 97.2u
-4.4 u vs normal
Based on 11/30 days
💨 Wind September
i Average wind speed at 10 meters above ground. 13.0km/h
Based on 11/30 days
☁ Cloud cover September
i Average cloud cover as a percentage of the sky. 73.7%
Based on 11/30 days
💧 Humidity September
i Average relative humidity at 2 meters above ground. 73.5%
Based on 11/30 days
Monthly summary September 2026 was 1.3°C warmer than normal with an average of 18.1°C. It was drier than usual: 15.5mm of rain, 78% less than normal. Less sun than usual with 97 hours, 65% less than normal.
driest 25% — precipitation(#4/4) gloomiest 25% — sunshine(#4/4)
# Driest September in 4 years (15.5 mm)~ 96% less rain than normal (September)
Records 🔥
35.9 °C
Hottest day
14/08/2026
🥶
-6 °C
Coldest day
11/01/2024
🌊
33.099995 mm
Wettest day
18/06/2024
☀
15.912161458333333 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% 6.8 km/h NE 0.0% 0 km/h E 3.0% 7.4 km/h SE 9.5% 8 km/h S 9.5% 9.3 km/h SW 45.8% 14.7 km/h W 28.0% 14.3 km/h NW 3.8% 11.2 km/h
🌡 Temperature (°C)Show table
🌧 Precipitation (mm)Show table