See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
29°
Mostly Clear
Feels Like: 33°
Min: 28°
Max: 29°
The next few hours will be partly cloudy, with today reaching 29°C and dropping to 27°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:48
Sunrise
17:44
Sunset
Moon
Waxing Gibbous
16:48
Moonrise
05:05
Moonset
Daily Forecast
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Saturday
Sunday
Monday
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Sunday
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View stargazing scoreWeather in San Jose today, September 25, 2026
San Jose looks damp on September 25, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly.
Expect highs of 29°C and cooler readings close to 28°C. Moisture in the air spans 76%-85%, with the highest values around 23:00. A lighter breeze peaks around 17:00 near 2.9 km/h.
Afternoon showers stay in play, peaking near 30% around 13:00. Skies remain cluttered, with cover about 42% by 20:00. Views remain open at about 16.1 km. Daylight runs from 05:48 to 17:44, lasting 11 hours 56 minutes of sunlight today.
Taken together, San Jose looks wet enough on September 25, 2026 that flexible outdoor plans work best, with temperatures peaking near 29°C.
Frequently asked questions about weather in San Jose
How warm does it get in San Jose?
The warmest month in San Jose is May, with average high temperatures of 29°C. The average temperature during this period is around 29°C.
How cold does it get in San Jose?
The coldest month in San Jose is February, with average low temperatures of 26°C. The average temperature during this period is around 27°C.
What is the wettest time of year in San Jose?
The wettest month in San Jose is July, with an average of 584mm of precipitation.
What is the driest time of year in San Jose?
The driest month in San Jose is March, with an average of 14mm of precipitation.
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