Atlantic City Weather in September

September in Atlantic City averages 24°C (75°F) during the day and 18°C (64°F) at night. Quite a bit of rainfall is typical this month, with around 100 mm (3.9 in) on average. An umbrella is a good idea.

Rainfall in Atlantic City in September

Analyzing past climate data, one can expect approximately 9 days of rain, averaging 100 mm (3.9 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Atlantic City in September

September in Atlantic City brings typical temperatures with highs around 24°C (75°F) and lows of 18°C (64°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 18°C (64°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

If you prefer enjoying temperate temperatures and rain-free days, May and July typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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• January
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• May
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• October
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For a detailed overview over the year and the best time to visit the United States of America, check out our Atlantic City's climate page.

Atlantic City Temperature in September

Min Temperature 18°C (64°F)  

Max Temperature 24°C (75°F)  

Chance of Rain 30%  

Precipitation 100 mm (3.9 in)  

Rainy days 9 days  

What to Wear in Atlantic City in September

For Atlantic City in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.

What To Do in Atlantic City in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Atlantic City's climate page.

More climate data for Atlantic City

Temperature Rainfall

See the full Atlantic City climate overview or explore weather in the United States of America.