San Jose, California weather in June

Averages from 2021–2025 (150 days of record).

Average high: 82°F
Average low: 57°F
Rainy days: ~0 per month
Total precipitation: 0.0 in
Warmest recorded: 101°F
Coldest recorded: 50°F

Expect June days in San Jose, California to top out around 82°F and cool to about 57°F overnight, with roughly 0 days of measurable rain across the month. In recent years June has ranged from 50°F to 101°F.

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Current San Jose, California forecast → · Historical data by Open-Meteo (ERA5).