September weather forecastManasquan, NJ
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Manasquan, New Jersey, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 65.1°F (18.4°C).Temperature
With the onset of September, Manasquan's climate undergoes a slight change as the average high-temperature moves from a moderately hot 78.6°F (25.9°C) in August to a pleasant 72.5°F (22.5°C). Manasquan's nocturnal average in September closely mirrors its daytime temperatures, settling at a refreshing 65.1°F (18.4°C).Humidity
The average relative humidity in September is 77%.Rainfall
In Manasquan, during September, the rain falls for 13 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Manasquan, during the entire year, the rain falls for 158.1 days and collects up to 34.13" (867mm) of precipitation.Snowfall
In Manasquan, snow does not fall in May through October.Ocean temperature
In Manasquan, in September, the average water temperature is 70.3°F (21.3°C).Note: Most people find it challenging to enjoy swimming in water that is 70.3°F (21.3°C). As water temperature falls below 69.8°F (21°C), controlling breathing grows 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 6:24 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:39 pm EDT.
Sunshine
In Manasquan, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the UV index of 5 transforms into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Around midday, solar radiation is most harmful; hence, exposure should be limited. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Notice! The reflection of water and sand increases the UV radiation significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Manasquan, NJ
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 65.1°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in September
Manasquan, 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
Manasquan, NJ
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in September
Manasquan, NJ
- Average humidity in September: 77%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in September
Manasquan, NJ
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is July (3.78").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in September
Manasquan, NJ
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Manasquan, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Manasquan, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Manasquan, NJ
- Average sea temperature in September: 70.4°F
The best month for swimming (with the highest average sea temperature) is August (74.8°F).
The coldest month (with the lowest average sea temperature) is February (40.4°F).
Average daylight in September /
Average sunshine in September
Manasquan, 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
Manasquan, NJ
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in September
Manasquan, 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
Manasquan, NJ
- Average cloud cover in September: 33
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Manasquan, 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).





