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Haarlem — Weatherlens — Weatherlens
Netherlands / Haarlem Noord-Holland
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Jaren: 2026 2025 2024 2023 2020
2026 2025 2024 2023 2020
2026 2025 2024 2023 2020
Data: 14/30 (47%) 🌡 Temperature September
i Average daily temperature based on hourly measurements at 2 meters above ground. 17.7°C
+1.1 °C vs normal
Based on 14/30 days
🌧 Precipitation September
i Total precipitation including rain, snow, and drizzle.
☀ Sunshine September
i Total hours of direct sunshine (>120 W/m²). 109.1u
-21.2 u vs normal
Based on 14/30 days
💨 Wind September
i Average wind speed at 10 meters above ground. 17.3km/h
+2.4 km/h vs normal
Based on 14/30 days
☁ Cloud cover September
i Average cloud cover as a percentage of the sky. 72.6%
+11.4 % vs normal
Based on 14/30 days
💧 Humidity September
i Average relative humidity at 2 meters above ground. 80.1%
+1.2 % vs normal
Based on 14/30 days
4 days {direction, select, warm {warmer} cold {colder} other {}} than normal in a row
Monthly summary September 2026 was 1.1°C warmer than normal with an average of 17.7°C. It was drier than usual: 61.4mm of rain, 37% less than normal. Less sun than usual with 109 hours, 61% less than normal.
driest 25% — precipitation(#4/4) gloomiest 25% — sunshine(#4/4)
# Driest September in 4 years (61.4 mm)~ 89% less rain than normal (September)— 3 heavy rain days (≥ 10mm)! Daily record: 20.8°C on 13 September
Records 🔥
33 °C
Hottest day
01/07/2025
🥶
-5.5 °C
Coldest day
11/01/2026
🌊
39.7 mm
Wettest day
04/10/2025
☀
16.116666666666667 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 1.8% 5.3 km/h NE 0.3% 6.5 km/h E 1.5% 5.7 km/h SE 6.0% 8.2 km/h S 17.0% 12.1 km/h SW 34.5% 18.9 km/h W 28.3% 23.2 km/h NW 10.7% 14.3 km/h
🌡 Temperature (°C)Show table
🌧 Precipitation (mm)Show table