San Jose (CA) Weather and Climate: A Comprehensive Guide
The temperature in San Jose can vary greatly throughout the year.
The temperatures shift from warm
to mild.
It maintains fairly dry conditions year-round.
Now, let’s break down all the climate details for a clearer picture.
Average maximum day and minimum night temperature
Depending on the time of the year, temperatures range from comfortable to moderate in San Jose. Average maximum daytime temperatures range from a comfortable 27°C in July, the warmest time of the year, to a moderate 15°C during cooler months like January.
At night, temperatures typically drop to an average of around 5°C during these months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
With annual rainfall averaging 309 mm, San Jose maintains relatively low precipitation levels throughout the seasons. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, December receives moderate rainfall, averaging 63 mm of precipitation, recorded across 11 rainy days. In contrast, the drier season, July brings less rainfall, with 0.1 mm over 0 rainy days. For more details, please visit our San Jose Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in San Jose. While May receives considerable daily sunshine with up to 10.8 hours, December marks the darkest time of the year, where sunshine is scarce with only 5.3 hours of sunlight per day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is high throughout the year in San Jose.
The city experiences its highest humidity in January, reaching 80%. In June, the humidity drops to its lowest level at 71%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
broken clouds and slight rain broken clouds and rain overcast and chance of slight rainForecast for San Jose (CA)
3 m/s
3 m/s
2 m/s
The best time of year to visit San Jose in the United States of America
During the months of April, May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
The hottest season / summer takes place in June, July, August and September.
Yes, the months of May, June, July, August, September and October are very dry.
July has an average maximum temperature of 27°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 15°C.
December tops the wettest month list with 63 mm of rainfall.
July is the driest month with 0 mm of precipitation.
May is the sunniest month with an average of 324 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
