Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September heralds a minor drop in average high-temperature, sliding from August's 79.7°F (26.5°C) to a still warm 74.1°F (23.4°C). Atlantic City, during September nights, records a temperature marginally cooler than the daytime average, at a refreshing 66.2°F (19°C).Humidity
In Atlantic City, the average relative humidity in September 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, in September, the average water temperature is 71.4°F (21.9°C).Note: Swimming becomes less enjoyable for most at a surface water temperature of 71.4°F (21.9°C). As the temperature decreases below 69.8°F (21°C), breathing becomes increasingly difficult.
Daylight
In September, the average length of the day 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 6:41 pm EDT.
Sunshine
The average sunshine in September in Atlantic City is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 5 in September suggests the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's radiation is especially intense around midday; try to stay in shade during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Heed this! UV intensity is much stronger when reflected off sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Atlantic City?
What is the average humidity in September in Atlantic City?
How many days does it rain in September in Atlantic City?
When it does not snow in Atlantic City?
What is the ocean temperature in September in Atlantic City?
How many hours of daylight does Atlantic City have in September?
When are sunrise and sunset in September in Atlantic City?
How long on average sun shines in September in Atlantic City?
What is the UV index reading in September in Atlantic City?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
Average daylight in September /
Average sunshine in September
Atlantic City, NJ
- Average daylight in September: 12h and 2min
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 24min).
- Average sunshine in September: 9h and 2min
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).
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).
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).
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).
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).
Atlantic City, New Jersey, USA
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