September weather forecast
South Bound Brook, NJ

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Weather in September

September, the first month of the autumn in South Bound Brook, is still a warm month, with an average temperature ranging between min 58.5°F (14.7°C) and max 75.4°F (24.1°C).

Temperature

As September begins, there is a minor decrease in the average high-temperature, softly falling from 82.6°F (28.1°C) in August to a still warm 75.4°F (24.1°C). South Bound Brook reports an average low-temperature of 58.5°F (14.7°C) during the nights of September.

Humidity

In South Bound Brook, the average relative humidity in September is 76%.

Rainfall

The month with the least rainfall in South Bound Brook is September, when the rain falls for 12 days and typically collects 1.57" (40mm) of precipitation.

Snowfall

June through September are months without snowfall in South Bound Brook.

Daylight

In South Bound Brook, the average length of the day in September is 12h and 27min.
On the first day of September in South Bound Brook, sunrise is at 6:26 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

Sunshine

The average sunshine in September in South Bound Brook is 8.5h.

UV index

In South Bound Brook, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. To avoid the Sun's strongest rays, limit exposure around the mid-day period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

What is the average September temperature in South Bound Brook?

During September, South Bound Brook experiences an average high-temperature of 75.4°F (24.1°C) and a low-temperature of 58.5°F (14.7°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is evaluated at 87.8°F (31°C).

What is the average humidity in September in South Bound Brook?

In South Bound Brook, New Jersey, the average relative humidity in September is 76%.

What is the driest month in South Bound Brook?

The month with the least rainfall in South Bound Brook, New Jersey, is September, when the rain falls for 12 days and typically collects 1.57" (40mm) of precipitation.

How many days does it rain in September in South Bound Brook?

In South Bound Brook, during September, the rain falls for 12 days and regularly aggregates up to 1.57" (40mm) of precipitation.

When it does not snow in South Bound Brook?

June through September are months without snowfall in South Bound Brook, New Jersey.

Does it snow in South Bound Brook in September?

In South Bound Brook, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does South Bound Brook have in September?

The average day length in September in South Bound Brook is 12h and 27min.

When is the sunrise / sunset in September in South Bound Brook?

In September, on the first day of the month, sunrise is at 6:26 am and sunset at 7:29 pm. On the last day of the month, in South Bound Brook, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

How long on average sun shines in September in South Bound Brook?

The average sunshine duration in September is 8.5h.

What is the UV index intensity in September in South Bound Brook?

In South Bound Brook, New Jersey, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health risk 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 Bound Brook, NJ

Average temperature in September - South Bound Brook, NJ
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in September: 58.5°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure in September
South Bound Brook, NJ

Average pressure in September - South Bound Brook, NJ
  • Average pressure in September: 30.06"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 Bound Brook, NJ

Average wind speed in September - South Bound Brook, NJ
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in September
South Bound Brook, NJ

Average humidity in September - South Bound Brook, NJ
  • Average humidity in September: 76%

The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are April and August (73%).

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Average rainfall in September
South Bound Brook, NJ

Average rainfall in September - South Bound Brook, NJ
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in September
South Bound Brook, NJ

Average rainfall days in September - South Bound Brook, NJ
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall in September
South Bound Brook, NJ

Average snowfall in September - South Bound Brook, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
South Bound Brook, NJ

Average snowfall days in September - South Bound Brook, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
South Bound Brook, NJ

Average daylight in September / Average sunshine in September - South Bound Brook, 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 18min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in September
South Bound Brook, NJ

Average sunshine days in September - South Bound Brook, NJ
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (11.6 days).

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Average UV index in September
South Bound Brook, NJ

Average UV index in September - South Bound Brook, NJ
  • Average UV index in September: 4

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, March, November and December (UV index 2).

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Average cloud cover in September
South Bound Brook, NJ

Average cloud cover in September - South Bound Brook, NJ
  • Average cloud cover in September: 40

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in September
South Bound Brook, NJ

Average visibility in September - South Bound Brook, NJ
  • Average visibility in September: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

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South Bound Brook, New Jersey, USA

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