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 RSS
Zemst — Weatherlens — Weatherlens
Belgium / Zemst Vlaams-Brabant
Updated 0 hours ago ↓ 7.9°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 December
i Average daily temperature based on hourly measurements at 2 meters above ground. 6.8°C
+0.4 °C vs normal
🌧 Precipitation December
i Total precipitation including rain, snow, and drizzle.
☀ Sunshine December
i Total hours of direct sunshine (>120 W/m²). 72.0u
-15.6 u vs normal
💨 Wind December
i Average wind speed at 10 meters above ground. 20.5km/h
☁ Cloud cover December
i Average cloud cover as a percentage of the sky. 83.4%
💧 Humidity December
i Average relative humidity at 2 meters above ground. 85.5%
3 days {direction, select, warm {warmer} cold {colder} other {}} than normal in a row
Monthly summary December 2023 had an average temperature of 6.8°C, close to normal. It was wetter than usual: 85.8mm of rain, 37% more than normal. Less sun than usual with 72 hours, 18% less than normal.
warmest 33% — temperature(#1/3) wettest 33% — precipitation(#1/3) gloomiest 33% — sunshine(#3/3)
Did you know...# Warmest December in 3 years (6.8°C)# Wettest December in 3 years (85.8 mm)~ 96% less rain than normal (December)! Daily record: 10.9°C on 11 December
Records 🔥
36.2 °C
Hottest day
01/07/2025
🥶
-7.3 °C
Coldest day
18/01/2024
🌊
29.9 mm
Wettest day
18/06/2024
☀
15.895886501736111 u
Sunniest day
25/06/2023
Download Temperature (°C) CSV Download Precipitation (mm) CSV
Cloud cover 2023 vs 2025 vs 2024 vs normal
Wind Rose Wind direction distribution — December 2023
Dir % Avg N 2.8% 8.7 km/h NE 3.4% 9.9 km/h E 0.5% 8.1 km/h SE 5.4% 16 km/h S 13.3% 20.6 km/h SW 50.4% 22 km/h W 20.8% 23.1 km/h NW 3.4% 10.5 km/h
🌡 Temperature (°C)Show table
🌧 Precipitation (mm)Show table