‹ Atlantic City weather by month
Typical September weather
Atlantic City
New Jersey · September
79° days
58° nights
about 6 rainy days · 12½ hours of daylight · ocean 72°
What to pack
- Swimsuit
- Sunscreen
What September feels like
After Labor Day the crowds vanish and the ocean holds onto its warmth, which is why anyone who lives here answers September when you ask. Atlantic hurricane season peaks now, and for New Jersey that usually means heavy swell and rip currents rather than a direct hit — though Sandy is not that long ago.
Expect about 6 days with real rain — enough to notice, not enough to plan around. There’s a little humidity in the air, but nothing that changes your plans.
Can you swim?
The ocean runs about 72° — comfortable for swimming.
The numbers
| Typical high | 79° |
|---|---|
| Typical low | 58° |
| Days with real rain | 6 |
| Total rain | 3.5 in |
| Humidity | a touch humid |
| Water temperature | 72° |
| Sunrise / sunset (mid-month) | 6:39 am / 7:06 pm |