Typical Weather in San Diego, CA in September
77° F Avg High
66° F Avg Low
0 Rainy Days
☀️ Temperature Summary
September is one of the warmer months of the year for San Diego, with highs averaging around 77°F. You can expect overnight lows near 66°F most days. Daily high temperatures can range between 77°F and 75°F, and typically fall throughout the month.
The warm, dry temperatures in September make San Diego 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 1% chance of rain for any given day in September. It's one of the drier months of the year for San Diego, with total rainfall for the month around 0 inches.
Rainfall Throughout the Year
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