What to Wear in San Diego in September
Warm late summer. Expect 18°–25°C with 1 rainy days on average.
☀️
High
25°C
🌙
Low
18°C
🌧️
Rain days
1
🌡️
Feel
Pleasantly Warm
Typical outfit
~22°C average
About September in San Diego
September in San Diego typically brings warm late summer. With averages of 18°–25°C, the conditions call for perfect weather for exploring! light layers will keep you comfortable all day.
The classic "three-layer" rule works perfectly here: a base, a mid-layer, and something for wind.
September in other cities