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 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
In September, the average high-temperature marginally drops from a moderately hot 78.6°F (25.9°C) in August to an agreeable 72.7°F (22.6°C). South Mantoloking Beach's September nights experience a subtle temperature dip to an average of 65.3°F (18.5°C).Humidity
In South Mantoloking Beach, New Jersey, the average relative humidity in September is 77%.Rainfall
In South Mantoloking Beach, during September, the rain falls for 12 days and regularly aggregates up to 1.46" (37mm) of precipitation. In South Mantoloking Beach, during the entire year, the rain falls for 132 days and collects up to 17.17" (436mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, 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
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does South Mantoloking Beach have in September?
What time are sunrise and sunset in September in South Mantoloking Beach?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
South Mantoloking Beach, NJ
- Average high temperature in September: 72.7°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: 65.3°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 (29.8°F).
Average pressure in September
South Mantoloking Beach, 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
South Mantoloking Beach, NJ
- Average wind speed in September: 9.9mph
The windiest month (with the highest average wind speed) is January (13.2mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in September
South Mantoloking Beach, 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
South Mantoloking Beach, NJ
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is July (2.24").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
South Mantoloking Beach, NJ
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
South Mantoloking Beach, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
South Mantoloking Beach, 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 May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
South Mantoloking Beach, NJ
- Average daylight in September: 12h and 2min
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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
South Mantoloking Beach, NJ
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (13.7 days).
Average UV index in September
South Mantoloking Beach, 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
South Mantoloking Beach, 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
South Mantoloking Beach, 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).
South Mantoloking Beach, New Jersey, USA
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