September weather forecast
South Mantoloking Beach, NJ

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Weather in September

The first month of the autumn, September, is also an agreeable month in South Mantoloking Beach, New Jersey, with an average temperature fluctuating between 65.3°F (18.5°C) and 72.7°F (22.6°C).

Temperature

September is marked by a subtle drop in average high-temperatures, transitioning from a moderately hot 78.6°F (25.9°C) in August to a pleasant 72.7°F (22.6°C). South Mantoloking Beach indicates a consistently low-temperature of 65.3°F (18.5°C) during the nights of September.

Humidity

In September, the average relative humidity in South Mantoloking Beach is 77%.

Rainfall

In South Mantoloking Beach, in September, it is raining for 12 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 132 rainfall days, and 17.17" (436mm) of precipitation is accumulated.

Snowfall

In South Mantoloking Beach, snow does not fall in April through October.

Daylight

In South Mantoloking Beach, New Jersey, the average length of the day in September 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, in South Mantoloking Beach, sunrise is at 6:52 am and sunset at 6:39 pm EDT.

Sunshine

In South Mantoloking Beach, the average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index in South Mantoloking Beach is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

What is the temperature in September in South Mantoloking Beach?

The average high-temperature and low-temperature in South Mantoloking Beach, New Jersey, during September are 72.7°F (22.6°C) and 65.3°F (18.5°C) respectively.

What is the average humidity in September in South Mantoloking Beach?

In September, the average relative humidity in South Mantoloking Beach is 77%.

How many days does it rain in September in South Mantoloking Beach?

In South Mantoloking Beach, during September, the rain falls for 12 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow in South Mantoloking Beach?

April through October are months without snowfall in South Mantoloking Beach.

What is the average length of the day in September in South Mantoloking Beach?

In South Mantoloking Beach, the average day length in September is 12h and 26min.

What time are sunrise and sunset in September in South Mantoloking Beach?

In September, on the first day of the month, 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.

How many hours of sunshine does South Mantoloking Beach have in September?

The average sunshine duration in September in South Mantoloking Beach is 9h.

How high is the UV index in September in South Mantoloking Beach?

In South Mantoloking Beach, New Jersey, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
South Mantoloking Beach, NJ

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).

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Average pressure in September
South Mantoloking Beach, NJ

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).

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Average wind speed in September
South Mantoloking Beach, NJ

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).

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Average humidity in September
South Mantoloking Beach, NJ

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%).

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Average rainfall in September
South Mantoloking Beach, NJ

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").

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Average rainfall days in September
South Mantoloking Beach, NJ

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).

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Average snowfall in September
South Mantoloking Beach, NJ

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").

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Average snowfall days in September
South Mantoloking Beach, NJ

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).

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Average daylight in September /
Average sunshine in September
South Mantoloking Beach, NJ

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).

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Average sunshine days in September
South Mantoloking Beach, NJ

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).

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Average UV index in September
South Mantoloking Beach, NJ

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).

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Average cloud cover in September
South Mantoloking Beach, NJ

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).

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Average visibility in September
South Mantoloking Beach, NJ

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).

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South Mantoloking Beach, New Jersey, USA

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