Averages from 2021–2025 (141 days of record).
Expect February days in San Jose, California to top out around 61°F and cool to about 43°F overnight, with roughly 8 days of measurable rain across the month. In recent years February has ranged from 30°F to 78°F.
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Current San Jose, California forecast → · Historical data by Open-Meteo (ERA5).