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Hourly Forecast
Daylight Hours
06:10
Sunrise
17:51
Sunset
Moon
Waning Crescent
03:29
Moonrise
14:27
Moonset
Daily Forecast
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Weather in Jacareí today, September 07, 2026
Rain features in Jacareí on September 07, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. Cloud leads the morning, peaking close to 98% near 11:00. Sunshine has little room until later in the day.
The day peaks near 15°C and cools toward 12°C. Expect humidity between 69% and 86%, most humid near 22:00. Expect gentle winds, highest near 12:00 at 3.4 km/h.
Through the afternoon wet weather remains a factor, with rain chances near 38% around 19:00. Cloud also stays substantial, close to 99% near 12:00. Visibility holds near 15.4 km, though it can fall to 8.4 km. Daylight runs from 06:10 to 17:51, lasting 11 hours 41 minutes of sunlight today.
The practical takeaway for Jacareí on September 07, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 15°C.
Frequently asked questions about weather in Jacareí
How warm does it get in Jacareí?
The warmest month in Jacareí is January, with average high temperatures of -6°C. The average temperature during this period is around -7°C.
How cold does it get in Jacareí?
The coldest month in Jacareí is October, with average low temperatures of -11°C. The average temperature during this period is around -10°C.
What is the wettest time of year in Jacareí?
The wettest month in Jacareí is September, with an average of 33mm of precipitation.
What is the driest time of year in Jacareí?
The driest month in Jacareí is March, with an average of 2mm of precipitation.
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