Atlantic City beach and Boardwalk skyline at sunset

Weather · September

Atlantic City weather in September

Average highs of 74°F, lows of 65°F and 3.6 in of rain, from 30 years of weather records.

September is Atlantic City’s 4th warmest month, with average highs of 74°F and lows of 65°F. That is 5° cooler than August, and 13° above the yearly average high.

Average high
74°F
Average low
65°F
Precipitation
3.6 in
Wet days
8
Sunrise · sunset
6:38 AM · 7:07 PM

September across the year

  1. 42°30°Jan
  2. 43°31°Feb
  3. 48°37°Mar
  4. 57°46°Apr
  5. 66°55°May
  6. 75°65°Jun
  7. 80°71°Jul
  8. 79°70°Aug
  9. 74°65°Sep
  10. 65°54°Oct
  11. 55°43°Nov
  12. 47°35°Dec

High and low Rain

What to wear in September

  • Mild days: dress in layers, with a light jacket or sweater for mornings and evenings.
  • Pack an umbrella or rain jacket: rain or snow falls on about 8 days this month.

September is good for

What’s on in Atlantic City in September

See all upcoming events and school days off.

Around Atlantic City

Buildings along the beach between the Playground Pier and the Central Pier in Atlantic City, Atlantic County, New Jersey
2025-04-28 11 20 09 Buildings along the beach between the Playground Pier and the Central Pier in Atlantic City, Atlantic County, New JerseyFamartin · CC BY-SA 4.0
Large pipe extending into the ocean from the beach between the Playground Pier and the Central Pier in Atlantic City
2025-04-28 11 22 56 Large pipe extending into the ocean from the beach between the Playground Pier and the Central Pier in Atlantic City, Atlantic County, New JerseyFamartin · CC BY-SA 4.0
Brighton Park AC td 001 - Korean War Veterans Memorial, Atlantic City
Brighton Park AC td (2019-04-07) 001 - Korean War Veterans MemorialTdorante10 · CC BY-SA 4.0

See Atlantic City

A look around town before you go.

September compared with the months around it

MonthHighLowRain
August79°F70°F4.1 in
September74°F65°F3.6 in
October65°F54°F4.2 in

Planning a trip? See the best time to visit Atlantic City and today’s forecast.

Questions

How hot does it get in Atlantic City in September?

Average highs are 74°F and average lows 65°F, for a daily mean of 69°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Atlantic City in September?

September averages 3.6 in of precipitation over about 8 days with at least 0.01 in. It is the 6th wettest month of the year.

What time is sunset in Atlantic City in September?

Around mid-September the sun rises about 6:38 AM and sets about 7:07 PM, for roughly 12.5 hours of daylight.

Is September a good time to visit Atlantic City?

Yes. September is one of the mildest months, with highs between 65°F and 85°F and little rain.

NOAA U.S. Climate Normals 1991–2020, Atlantic City station (1.2 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.

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