September weather forecast
Island Heights, NJ

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Weather in September

The first month of the autumn, September, is still a warm month in Island Heights, New Jersey, with an average temperature varying between 73.8°F (23.2°C) and 64.4°F (18°C).

Temperature

September ushers in a minor alteration in Island Heights's climate, with the average high-temperature moving from August's 79.9°F (26.6°C) to a still warm 73.8°F (23.2°C). The temperature in Island Heights lowers to an average of 64.4°F (18°C) during September nights.

Humidity

In September, the average relative humidity in Island Heights, New Jersey, is 77%.

Rainfall

In Island Heights, in September, during 11.7 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Island Heights, New Jersey, during the entire year, the rain falls for 129.4 days and collects up to 15.31" (389mm) of precipitation.

Snowfall

In Island Heights, snow does not fall in April through October.

Daylight

The average length of the day in September in Island Heights, New Jersey, is 12h and 26min.
On the first day of September, sunrise is at 6:25 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:40 pm EDT.

Sunshine

In September, the average sunshine is 9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What are the temperatures in Island Heights in September?

The high-temperature in Island Heights during September is 73.8°F (23.2°C) and the low-temperature is 64.4°F (18°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

What is the average humidity in September in Island Heights?

In September, the average relative humidity in Island Heights is 77%.

How much does it rain in Island Heights in September?

In September, in Island Heights, the rain falls for 11.7 days. Throughout September, 1.14" (29mm) of precipitation is accumulated.

When it does not snow in Island Heights?

April through October are months without snowfall in Island Heights.

What is the average length of the day in September in Island Heights?

The average day length in September in Island Heights, New Jersey, is 12h and 26min.

When are sunrise and sunset in September in Island Heights?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:27 pm. On the last day of the month, in Island Heights, New Jersey, sunrise is at 6:52 am and sunset at 6:40 pm EDT.

How many hours of sunshine does Island Heights have in September?

The average sunshine duration in September in Island Heights is 9h.

What is the UV index intensity in September in Island Heights?

The average daily maximum UV index in September in Island Heights is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
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
Island Heights, NJ

Average temperature in September - Island Heights, NJ
  • Average high temperature in September: 73.8°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in September: 64.4°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

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Average pressure in September
Island Heights, NJ

Average pressure in September - Island Heights, 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
Island Heights, NJ

Average wind speed in September - Island Heights, NJ
  • Average wind speed in September: 9mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

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Average humidity in September
Island Heights, NJ

Average humidity in September - Island Heights, 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, March and November (74%).

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Average rainfall in September
Island Heights, NJ

Average rainfall in September - Island Heights, NJ
  • Average rainfall in September: 1.14"

The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.79").

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Average rainfall days in September
Island Heights, NJ

Average rainfall days in September - Island Heights, NJ
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (6.9 days).

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Average snowfall in September
Island Heights, NJ

Average snowfall in September - Island Heights, 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
Island Heights, NJ

Average snowfall days in September - Island Heights, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Island Heights, NJ

Average daylight in September / Average sunshine in September - Island Heights, 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
Island Heights, NJ

Average sunshine days in September - Island Heights, NJ
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (13.9 days).

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Average UV index in September
Island Heights, NJ

Average UV index in September - Island Heights, 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
Island Heights, NJ

Average cloud cover in September - Island Heights, 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).

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Average visibility in September
Island Heights, NJ

Average visibility in September - Island Heights, 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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Island Heights, New Jersey, USA

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