See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
24°
Humid and Mostly Cloudy
Feels Like: 24°
Min: 24°
Max: 31°
The next few hours will be mostly cloudy, with tomorrow reaching 30°C and dropping to 23°C. The coming days will be light rain
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:32
Sunrise
17:30
Sunset
Moon
Waxing Gibbous
16:16
Moonrise
03:39
Moonset
Daily Forecast
Thursday
Today
Saturday
Sunday
Monday
Tuesday
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Saturday
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View stargazing scoreWeather in San José tomorrow, September 25, 2026
San José 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. Early hours look the most unsettled, with rain probability near 90% by 10:00. The thickest cloud arrives around 03:00, reaching about 87%.
The temperature range runs from about 24°C up to 30°C. The air stays humid, with relative humidity between 73% and 100% and the peak around 18:00. A lighter breeze peaks around 09:00 near 2.8 km/h.
Afternoon showers stay in play, peaking near 100% around 16:00. Skies remain cluttered, with cover about 97% by 20:00. Horizontal visibility sits around 12.6 km, briefly nearer 5.1 km. Sunrise is at 05:32 and sunset at 17:29, giving 11 hours 57 minutes of sunlight today.
The practical takeaway for San José on September 25, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 30°C.
Frequently asked questions about weather in San José
How warm does it get in San José?
The warmest month in San José is April, with average high temperatures of 28°C. The average temperature during this period is around 26°C.
How cold does it get in San José?
The coldest month in San José is February, with average low temperatures of 22°C. The average temperature during this period is around 24°C.
What is the wettest time of year in San José?
The wettest month in San José is November, with an average of 374mm of precipitation.
What is the driest time of year in San José?
The driest month in San José is March, with an average of 74mm of precipitation.
