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18:08
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12:35
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View stargazing scoreWeather in São José tomorrow, September 21, 2026
Rain features in São José on September 21, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. The morning carries the wetter risk, with rain chances near 82% and the highest odds around 07:00. Cloud is also thick early on, peaking near 100% around 08:00.
The temperature range runs from about 18°C up to 32°C. Expect humidity between 40% and 93%, most humid near 09:00. Airflow remains manageable, reaching about 2.4 km/h around 00:00.
The second half of the day still looks unsettled, with rain probability around 44% by 16:00. Dense cloud near 100% at 12:00 keeps the feel grey. Expect visibility near 12.5 km, with poorer spells close to 0.3 km. Daylight runs from 06:08 to 18:09, lasting 12 hours 0 minutes of sunlight today.
Overall, São José on September 21, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 82% and the high sits around 32°C.
Frequently asked questions about weather in São José
How warm does it get in São José?
The warmest month in São José is February, with average high temperatures of 28°C. The average temperature during this period is around 23°C.
How cold does it get in São José?
The coldest month in São José is July, with average low temperatures of 10°C. The average temperature during this period is around 14°C.
What is the wettest time of year in São José?
The wettest month in São José is January, with an average of 313mm of precipitation.
What is the driest time of year in São José?
The driest month in São José is July, with an average of 75mm of precipitation.
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