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Hourly Forecast
Daylight Hours
07:42
Sunrise
19:44
Sunset
Moon
Waxing Gibbous
17:23
Moonrise
01:14
Moonset
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View stargazing scoreWeather in Longjumeau tomorrow, September 21, 2026
Expect a mostly clear day in Longjumeau on September 21, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. The first half of the day looks overcast, as cloud amounts reach about 100% around 06:00. Brighter weather, if it comes, waits until later.
The day peaks near 23°C and cools toward 13°C. Moisture in the air spans 34%-92%, with the highest values around 08:00. Expect gentle winds, highest near 17:00 at 3.0 km/h.
Afternoon skies stay clogged, peaking close to 80% near 12:00. The grey theme continues rather than clearing out. Visibility holds near 33.9 km, though it can fall to 19.2 km. Sunrise is at 07:44 and sunset at 19:42, giving 11 hours 58 minutes of sunlight today.
Taken together, settled sunshine in Longjumeau on September 21, 2026 makes outdoor timing easier, with highs near 23°C.
Frequently asked questions about weather in Longjumeau
How warm does it get in Longjumeau?
The warmest month in Longjumeau is July, with average high temperatures of 26°C. The average temperature during this period is around 20°C.
How cold does it get in Longjumeau?
The coldest month in Longjumeau is January, with average low temperatures of 2°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Longjumeau?
The wettest month in Longjumeau is October, with an average of 81mm of precipitation.
What is the driest time of year in Longjumeau?
The driest month in Longjumeau is August, with an average of 52mm of precipitation.
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