September weather forecastSurf City, NJ
September
Weather in September
September, the first month of the autumn in Surf City, is still a pleasant month, with an average temperature fluctuating between 66°F (18.9°C) and 73°F (22.8°C).Temperature
Surf City's progression into September involves a gentle drop in the average high-temperature, from a warm 78.6°F (25.9°C) in August to an agreeable 73°F (22.8°C). Surf City encounters an average temperature dip to a comfortable 66°F (18.9°C) throughout September, subtly lower than its daytime maximum.Humidity
The average relative humidity in September is 77%.Rainfall
January and September are months with the least rain in Surf City when the rain falls for 8.8 days and typically aggregates up to 0.67" (17mm) of rain.Snowfall
In Surf City, snow does not fall in April through November.Ocean temperature
In September, the average ocean temperature is 71.2°F (21.8°C).Note: In 71.2°F (21.8°C), swimming is not an enjoyable activity for most. The challenge of managing one's breathing increases as the temperature goes under 69.8°F (21°C).
Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:40 pm EDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
In Surf City, New Jersey, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Prioritize safety - Recommendations to avert sunburn are shared. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Surf City, NJ
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in September: 66°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in September
Surf 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
Surf City, NJ
- Average wind speed in September: 10.4mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is August (9mph).
Average humidity in September
Surf City, NJ
- Average humidity in September: 77%
The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall in September
Surf City, NJ
- Average rainfall in September: 0.67"
The wettest months (with the highest rainfall) are July and December (1.14").
The driest months (with the least rainfall) are January and September (0.67").
Average rainfall days in September
Surf City, NJ
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is November (6.7 days).
Average snowfall in September
Surf City, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.94").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Surf City, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in September
Surf City, NJ
- Average sea temperature in September: 71.2°F
The best month for swimming (with the highest average sea temperature) is August (75.8°F).
The coldest month (with the lowest average sea temperature) is February (40.8°F).
Average daylight in September /
Average sunshine in September
Surf City, NJ
- Average daylight in September: 12h and 24min
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 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).
Average sunshine days in September
Surf City, NJ
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (15.2 days).
Average UV index in September
Surf City, NJ
- Average UV index in September: 5
The months with the highest UV index are 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
Surf 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
Surf 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).





