Current Weather and Forecast in San Jose, CA
California, United States 🇺🇸
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About the weather in San Jose
San Jose has a Mediterranean climate. August is the warmest month, with average highs of 84°, and December the coldest, when nights fall to around 44°. January brings the most rain, on about 10 days, while July is the sunniest, with 13.8 hours of sunshine a day. Over a whole year it rains on roughly 55 days.
San Jose climate guide: monthly averages, seasons and the best time to visit
Common questions
How many rainy days does San Jose get in a year?
About 55 days bring measurable precipitation, totalling 21.5 inches (547 mm). That works out at roughly 10.0 mm on an average wet day.
What is the coldest month in San Jose?
December, with highs of 58°F (15°C) and lows near 44°F (7°C). The coldest day in the 2015-2024 record fell to 30°F (-1°C).
What is the best time to visit San Jose?
The best time to visit San Jose is generally April to July and February, when the dry season is running but the afternoons are still bearable. Daytime temperatures in that window sit near 76°F (24°C), with rain on about 3 days a month. For the same question asked the other way round, see where else is warm in April.
How sunny is San Jose?
10.7 hours a day averaged over the year, peaking in July at 13.8 hours.
Which month is wettest in San Jose?
January, at 4.5 inches (115 mm) over about 10 days. August is the driest month, at less than 1 mm.
Are nights cold in San Jose?
By about 11°C on an average day - a wider day-to-night gap than most of the 3496 cities we track. In August that means 84°F (29°C) down to 60°F (16°C).
Which month is warmest in San Jose?
August, averaging 84°F (29°C) by day and 60°F (16°C) overnight. The hottest single day in our 2015-2024 record for this location reached 116°F (47°C).
Is there snow in San Jose?
Effectively no. The 2015-2024 record for San Jose shows no regular measurable snowfall.