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
Geraardsbergen (Grammont) — Weatherlens — Weatherlens
Belgium / Geraardsbergen Grammont
Oost-Vlaanderen
Updated -11 hours ago ↓ 8.65°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. 18.4°C
+2.0 °C vs normal
🌧 Precipitation September
i Total precipitation including rain, snow, and drizzle.
☀ Sunshine September
i Total hours of direct sunshine (>120 W/m²). 275.5u
+12.1 u vs normal
💨 Wind September
i Average wind speed at 10 meters above ground. 12.0km/h
☁ Cloud cover September
i Average cloud cover as a percentage of the sky. 56.9%
💧 Humidity September
i Average relative humidity at 2 meters above ground. 77.8%
Monthly summary September 2023 was 2.0°C warmer than normal with an average of 18.4°C. With 65.1mm of rain, precipitation was near average. Sunshine was close to average with 276 hours.
warmest 33% — temperature(#1/3) sunniest 33% — sunshine(#1/3)
# Warmest September in 3 years (18.4°C)~ 98% less rain than normal (September)~ 2.0°C warmer than normal (September)— Longest dry streak: 8 consecutive days— 9 summer days (max ≥ 25°C)
Records 🔥
36.1 °C
Hottest day
31/07/2020
🥶
-6 °C
Coldest day
10/01/2024
🌊
27.800001 mm
Wettest day
29/06/2024
☀
15.014391276041666 u
Sunniest day
21/06/2025
Download Temperature (°C) CSV Download Precipitation (mm) CSV
☁
Cloud cover 2023 vs 2025 vs 2024 vs normal
Wind Rose Wind direction distribution — September 2023
Dir % Avg N 2.4% 11.8 km/h NE 4.9% 7.8 km/h E 17.5% 8.6 km/h SE 14.4% 8.4 km/h S 24.0% 12.2 km/h SW 26.8% 17.1 km/h W 8.5% 11 km/h NW 1.5% 9.4 km/h
🌡 Temperature (°C)Show table
🌧 Precipitation (mm)Show table