Last 7 days
Today
19° / 14° High / Low (°C)
96% Humidity
47% Rain probability
Rain Condition
~4h Rain duration
What this means
In San Jose on 21 Oct 2026, rain is expected: 47% chance, up to 29.9 mm forecast (source: Open-Meteo).
Heavy rain is expected today for around 4 hours — 47% probability, up to 29.9mm forecast. An umbrella is the right call.
Rain season
San Jose is drier than San Francisco despite being 80km south, averaging 375mm annually. May through October is reliably dry and warm; Pacific fronts arrive November through April in waves, with December–January the wettest months. Drought conditions in recent years have made dry-season water restrictions increasingly common.
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