September weather forecast
Atlantic City, NJ

Clear blue waters approaching the sandy beach of the distant Atlantic City in New Jersey
Clear blue waters approaching the sandy beach of the distant Atlantic City in New Jersey

Weather in September

September, the first month of the autumn in Atlantic City, is still a warm month, with temperature in the range of an average low of 66.2°F (19°C) and an average high of 74.1°F (23.4°C).

Temperature

In Atlantic City, the average high-temperature in September slightly decreases from 79.7°F (26.5°C) in August to a still moderately hot 74.1°F (23.4°C). In September, the average low-temperature is 66.2°F (19°C).

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Atlantic City, in September, during 10.1 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. Throughout the year, there are 121.6 rainfall days, and 12.09" (307mm) of precipitation is accumulated.

Snowfall

In Atlantic City, snow does not fall in April through November.

Ocean temperature

In Atlantic City, the average seawater temperature in September is 71.4°F (21.9°C).
Note: For most, swimming in 71.4°F (21.9°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

In September, the average length of the day in Atlantic City is 12h and 26min.
On the first day of the month, sunrise is at 6:26 am and sunset at 7:28 pm. On the last day of September, in Atlantic City, sunrise is at 6:53 am and sunset at 6:42 pm EDT.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In Atlantic City, New Jersey, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the temperature in September in Atlantic City?

In Atlantic City, in September, the average high-temperature is 74.1°F (23.4°C), and the average low-temperature is 66.2°F (19°C).

What is the average humidity in September in Atlantic City?

In Atlantic City, the average relative humidity in September is 77%.

How much does it rain in Atlantic City in September?

In September, in Atlantic City, the rain falls for 10.1 days. Throughout September, 0.83" (21mm) of precipitation is accumulated.

When it does not snow in Atlantic City?

April through November are months without snowfall in Atlantic City, New Jersey.

What is the ocean temperature in September in Atlantic City?

In September, the average ocean temperature is 71.4°F (21.9°C). For most, swimming in 71.4°F (21.9°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

How many hours of daylight does Atlantic City have in September?

In September, the average day length in Atlantic City is 12h and 26min.

When are sunrise and sunset in September in Atlantic City?

On the first day of September in Atlantic City, New Jersey, sunrise is at 6:26 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:42 pm EDT.

How many hours of sunshine does Atlantic City have in September?

The average sunshine duration in September is 9.3h.

What is the UV index intensity in September in Atlantic City?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Atlantic City, NJ

Average temperature in September - Atlantic City, NJ
  • Average high temperature in September: 74.1°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in September: 66.2°F

The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

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Average pressure in September
Atlantic City, NJ

Average pressure in September - Atlantic City, NJ
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Atlantic City, NJ

Average wind speed in September - Atlantic City, NJ
  • Average wind speed in September: 10.1mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

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Average humidity in September
Atlantic City, NJ

Average humidity in September - Atlantic City, NJ
  • Average humidity in September: 77%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in September
Atlantic City, NJ

Average rainfall in September - Atlantic City, NJ
  • Average rainfall in September: 0.83"

The wettest month (with the highest rainfall) is October (1.26").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days in September
Atlantic City, NJ

Average rainfall days in September - Atlantic City, NJ
  • Average rainfall days in September: 10.1 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (6.9 days).

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Average snowfall in September
Atlantic City, NJ

Average snowfall in September - Atlantic City, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Atlantic City, NJ

Average snowfall days in September - Atlantic City, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in September
Atlantic City, NJ

Average sea temperature in September - Atlantic City, NJ
  • Average sea temperature in September: 71.4°F

The best month for swimming (with the highest average sea temperature) is August (76.6°F).
The coldest month (with the lowest average sea temperature) is February (40.5°F).

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Average daylight in September /
Average sunshine in September
Atlantic City, NJ

Average daylight in September / Average sunshine in September - Atlantic City, NJ
  • Average daylight in September: 12h and 26min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 27min).

  • Average sunshine in September: 9h and 18min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in September
Atlantic City, NJ

Average sunshine days in September - Atlantic City, NJ
  • Average sunshine days in September: 18.2 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (14.6 days).

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Average UV index in September
Atlantic City, NJ

Average UV index in September - Atlantic City, NJ
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Atlantic City, NJ

Average cloud cover in September - Atlantic City, NJ
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 26).

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Average visibility in September
Atlantic City, NJ

Average visibility in September - Atlantic City, NJ
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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