Average Temperature in San Jose by Month

San Jose has a tropical monsoon climate, classified as Am in the Köppen system. The warmest month is March with an average high of 26°C, while the coldest month is January with lows dropping to 17°C. The annual temperature range of 9°C indicates a relatively stable climate year-round.

The driest month is February with only 11 rain days and 66mm of precipitation. For travellers, February through to the following month typically offers the best balance of warm temperatures and dry conditions. Average humidity ranges from 82% to 82% throughout the year.