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Hourly Forecast
Daylight Hours
07:40
Sunrise
19:42
Sunset
Moon
Waxing Gibbous
17:31
Moonrise
01:02
Moonset
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View stargazing scoreWeather in Harnes today, September 20, 2026
Expect a muted, overcast feel in Harnes on September 20, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief.
The day peaks near 20°C and cools toward 13°C. The air stays humid, with relative humidity between 58% and 76% and the peak around 23:00. A lighter breeze peaks around 17:00 near 4.2 km/h.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 18:00. Outdoor plans may still want a flexible backup. Expect visibility near 38.7 km, with poorer spells close to 36.3 km. Sunrise is at 07:40 and sunset at 19:42, giving 12 hours 1 minutes of sunlight today.
The practical takeaway for Harnes on September 20, 2026 is a cloudy day that stays usable, just not particularly bright, around 20°C.
Frequently asked questions about weather in Harnes
How warm does it get in Harnes?
The warmest month in Harnes is August, with average high temperatures of 24°C. The average temperature during this period is around 19°C.
How cold does it get in Harnes?
The coldest month in Harnes is January, with average low temperatures of 2°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Harnes?
The wettest month in Harnes is October, with an average of 77mm of precipitation.
What is the driest time of year in Harnes?
The driest month in Harnes is April, with an average of 48mm of precipitation.
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