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18°
Overcast
Feels Like: 20°
Min: 13°
Max: 23°
The next few hours will be mostly clear, with tomorrow reaching 22°C and dropping to 12°C. The coming days will be mostly cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:43
Sunrise
19:45
Sunset
Moon
Waxing Gibbous
17:24
Moonrise
01:15
Moonset
Daily Forecast
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Monday
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View stargazing scoreWeather in Gif-sur-Yvette tomorrow, September 21, 2026
Conditions in Gif-sur-Yvette on September 21, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting. The morning sky stays heavily clouded, with cover near 100% around 05:00. Grey conditions set the early tone before any later change.
The temperature range runs from about 11°C up to 22°C. Moisture in the air spans 37%-93%, with the highest values around 08:00. Winds stay light, near 3.2 km/h by 16:00, so the day feels still more than breezy.
Expect persistent cloud later on, with amounts around 95% by 12:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 33.1 km on average, though it can drop toward 20.2 km in thicker cloud or showers. Expect sunrise at 07:44, sunset at 19:42, and 11 hours 58 minutes of sunlight today overall.
Overall, Gif-sur-Yvette on September 21, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 22°C.
Frequently asked questions about weather in Gif-sur-Yvette
How warm does it get in Gif-sur-Yvette?
The warmest month in Gif-sur-Yvette 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 Gif-sur-Yvette?
The coldest month in Gif-sur-Yvette 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 Gif-sur-Yvette?
The wettest month in Gif-sur-Yvette is October, with an average of 81mm of precipitation.
What is the driest time of year in Gif-sur-Yvette?
The driest month in Gif-sur-Yvette is August, with an average of 52mm of precipitation.
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