Typical September weather
Santa Cruz
California · September
75° days
52° nights
rain is rare · 12½ hours of daylight · ocean 62°
What to pack
- Light jacket
- Sunscreen
What September feels like
September is when people who live here take their vacation days: the warmest afternoons of the year, the fog on holiday, and the summer crowds back in class. When inland heat spills over the hills, this becomes the coolest address in the Bay Area.
Rain is genuinely rare — most years, September stays dry start to finish.
Can you swim?
The ocean runs about 62° — cold — a quick dip takes resolve.
The numbers
| Typical high | 75° |
|---|---|
| Typical low | 52° |
| Days with real rain | 0 |
| Total rain | 0.1 in |
| Water temperature | 62° |
| Sunrise / sunset (mid-month) | 6:50 am / 7:15 pm |