September weather forecastSea Bright, NJ
September
Weather in September
The first month of the autumn, September, is still a warm month in Sea Bright, New Jersey, with temperature in the range of an average high of 73.8°F (23.2°C) and an average low of 64.6°F (18.1°C).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a still moderately hot 73.8°F (23.2°C) from 79.5°F (26.4°C). In the month of September, Sea Bright's average low-temperature falls to a comfortable 64.6°F (18.1°C).Humidity
In Sea Bright, the average relative humidity in September is 76%.Rainfall
In Sea Bright, during September, the rain falls for 11.5 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, there are 125.1 rainfall days, and 12.64" (321mm) of precipitation is accumulated.Snowfall
In Sea Bright, snow does not fall in April through September and November.Ocean temperature
In Sea Bright, in September, the average water temperature is 70.3°F (21.3°C).Note: In water with a temperature of 70.3°F (21.3°C), most individuals do not find swimming enjoyable. As the temperature falls from 69.8°F (21°C) to 59°F (15°C), breathing control becomes more difficult.
Daylight
In September, the average length of the day is 12h and 27min.On the first day of September in Sea Bright, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:39 pm EDT.
Sunshine
In September, the average sunshine is 9h.UV index
In Sea Bright, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Exercise prevention - Warding off sunburn is urged. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Attention! The reflection of both water and sand can increase the intensity of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sea Bright, NJ
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in September
Sea Bright, NJ
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Sea Bright, NJ
- Average wind speed in September: 9.1mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in September
Sea Bright, NJ
- Average humidity in September: 76%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in September
Sea Bright, NJ
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in September
Sea Bright, NJ
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in September
Sea Bright, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are April, May, June, July, August, September and November (0").
Average snowfall days in September
Sea Bright, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average sea temperature in September
Sea Bright, NJ
- Average sea temperature in September: 70.3°F
The best month for swimming (with the highest average sea temperature) is August (74.5°F).
The coldest month (with the lowest average sea temperature) is February (40.1°F).
Average daylight in September /
Average sunshine in September
Sea Bright, NJ
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Sea Bright, NJ
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is July (13 days).
Average UV index in September
Sea Bright, 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, November and December (UV index 2).
Average cloud cover in September
Sea Bright, NJ
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Sea Bright, 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).





