Atlantic City in September
7.9out of 10
Yes, a good time to go
Warm and comfortable: highs around 23°C. Some rain: about 8 rainy days.
23°CAvg high
20°CAvg low
8Rainy days (97 mm)
12:15 hDaylight
06:45Sunrise · 18:59 Sunset
Why this score
- Warm and comfortable: highs around 23°C
- Some rain: about 8 rainy days
What to wear and pack
- T-shirts and light layers
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±3.1 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 6°C | 1°C | 93 mm | 9 | – | – | 5.0 |
| February | 6°C | 1°C | 91 mm | 9 | – | – | 5.1 |
| March | 8°C | 4°C | 118 mm | 11 | – | – | 5.3 |
| April | 13°C | 8°C | 91 mm | 10 | – | – | 6.2 |
| May | 17°C | 13°C | 85 mm | 9 | – | – | 7.1 |
| June | 22°C | 19°C | 74 mm | 8 | – | – | 8.0 |
| July | 26°C | 23°C | 77 mm | 8 | – | – | 8.0 |
| August | 25°C | 22°C | 100 mm | 9 | – | – | 7.9 |
| September | 23°C | 20°C | 97 mm | 8 | – | – | 7.9 |
| October | 18°C | 14°C | 116 mm | 9 | – | – | 7.1 |
| November | 13°C | 8°C | 88 mm | 8 | – | – | 6.5 |
| December | 8°C | 4°C | 112 mm | 10 | – | – | 5.4 |
Frequently asked questions
How hot is Atlantic City in September?
Daytime highs average 23°C and nights about 20°C.
When is the best time to visit Atlantic City?
The best months are June, July, August, September.