San José Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from comfortable to chilly in San José. Average maximum daytime temperatures range from a comfortable 25°C (77°F) in January, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like July.

At night, you can expect temperatures ranging from 12°C (54°F) in January to around -3°C (27°F) during July.

Check out our detailed temperature page for more information.

Temperature ranges by month

San José has a relatively rain/snowy climate with high precipitation levels, averaging 1258 mm (50 in) of rain/snowfall annually. While rainfall varies throughout the year, each season offers its own charm. February brings wetter days averaging 143 mm (5.6 in) of precipitation, spread over 7 rainy days.

In contrast, the driest month July experiences a drier climate, with about 66 mm (2.6 in) of snow/rainfall spread across 3 snowy/rainy days. For more details, please visit our San José Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in San José. While January receives considerable daily sunshine with up to 10.4 hours, June marks the darkest time of the year, where sunshine is scarce with only 5.7 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

The relative humidity is moderate throughout the year in San José.

The city experiences its highest humidity in April, reaching 67%. In November, the humidity drops to its lowest level at 45%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year