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Aalst (Alost) — Weatherlens — Weatherlens
Belgium / Aalst Alost
Oost-Vlaanderen
Updated -4 hours ago ↓ 7.85°C/decennium </> Embed code
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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. 15.6°C
-1.0 °C vs normal
🌧 Precipitation September
i Total precipitation including rain, snow, and drizzle.
☀ Sunshine September
i Total hours of direct sunshine (>120 W/m²). 266.6u
-0.7 u vs normal
💨 Wind September
i Average wind speed at 10 meters above ground. 14.1km/h
☁ Cloud cover September
i Average cloud cover as a percentage of the sky. 60.3%
💧 Humidity September
i Average relative humidity at 2 meters above ground. 73.9%
Monthly summary September 2025 was 1.0°C colder than normal with an average of 15.6°C. It was drier than usual: 47.1mm of rain, 30% less than normal. Sunshine was close to average with 267 hours.
driest 33% — precipitation(#3/3)
# Driest September in 3 years (47.1 mm)~ 98% less rain than normal (September)! Daily record: 29.9°C on 7 September
Records 🔥
36.3 °C
Hottest day
29/07/2026
🥶
-6.7 °C
Coldest day
18/01/2024
🌊
26 mm
Wettest day
21/09/2023
☀
15.921996527777777 u
Sunniest day
24/06/2023
Download Temperature (°C) CSV Download Precipitation (mm) CSV
Cloud cover 2025 vs 2025 vs 2024 vs normal
Wind Rose Wind direction distribution — September 2025
Dir % Avg N 9.9% 9.6 km/h NE 14.2% 12.9 km/h E 2.4% 8.2 km/h SE 8.3% 9.9 km/h S 24.0% 14.8 km/h SW 29.9% 18.6 km/h W 6.5% 13 km/h NW 4.9% 7.6 km/h
🌡 Temperature (°C)Show table
🌧 Precipitation (mm)Show table