Typical Weather in San Jose, CA in September
81° F Avg High
57° F Avg Low
1 Rainy Days
☀️ Temperature Summary
September is a popular time of year to visit, with an inviting climate characterized by warm temperatures. Highs in September are typically around 81°F, which is warmer than usual in San Jose. You can expect overnight lows near 57°F most days.
The warm, dry temperatures in September make San Jose a great destination to relax and soak up the sun.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
You can expect about a 2% chance of rain for any given day in September. It's one of the drier months of the year for San Jose, with total rainfall for the month around 0 inches.
Rainfall Throughout the Year
Planning a trip to San Jose? Try our free trip weather planner