September weather forecast
Port Reading, NJ

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Weather in September

September, the first month of the autumn in Port Reading, is also a moderately hot month, with an average temperature fluctuating between 75.2°F (24°C) and 61.2°F (16.2°C).

Temperature

September's arrival subtly correlates with a reduction in the average high-temperature, down from 81.9°F (27.7°C) in August to a still moderately hot 75.2°F (24°C). Throughout September, the nighttime temperature averages to a comfortable 61.2°F (16.2°C).

Humidity

The average relative humidity in September is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 9.6 days and typically collects 0.39" (10mm) of precipitation.

Snowfall

In Port Reading, snow does not fall in May through October.

Ocean temperature

In September, the average ocean temperature is 70.2°F (21.2°C).
Note: For the majority, swimming in 70.2°F (21.2°C) does not offer a pleasant experience. Below 69.8°F (21°C), the difficulty in controlling breathing escalates.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 6:24 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:40 pm EDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

In Port Reading, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in September interprets into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be alert! The reflection of water and sand augments UV radiation intensity.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

In Port Reading, in September, the average high-temperature is 75.2°F (24°C), and the average low-temperature is 61.2°F (16.2°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is appraised at 86°F (30°C).

What is the average humidity in September?

In Port Reading, New Jersey, the average relative humidity in September is 75%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 9.6 days and typically collects 0.39" (10mm) of precipitation.

How much does it rain in September?

In Port Reading, in September, during 9.6 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

When it does not snow in Port Reading?

In Port Reading, snow does not fall in May through October.

How cold is the water in September?

In September, the average ocean temperature is 70.2°F (21.2°C). For swimming, a surface water temperature of 70.2°F (21.2°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:24 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:40 pm EDT.

How many hours of sunshine does Port Reading have in September?

In Port Reading, the average sunshine duration in September is 8.9h.

What is the UV index reading in September?

In Port Reading, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
Port Reading, NJ

Average temperature in September - Port Reading, NJ
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in September: 61.2°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in September
Port Reading, NJ

Average pressure in September - Port Reading, 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
Port Reading, NJ

Average wind speed in September - Port Reading, NJ
  • Average wind speed in September: 7mph

The windiest months (with the highest average wind speed) are January and March (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

Average humidity in September
Port Reading, NJ

Average humidity in September - Port Reading, NJ
  • Average humidity in September: 75%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (72%).

Average rainfall in September
Port Reading, NJ

Average rainfall in September - Port Reading, NJ
  • Average rainfall in September: 0.39"

The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is September (0.39").

Average rainfall days in September
Port Reading, NJ

Average rainfall days in September - Port Reading, NJ
  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is January (4.9 days).

Average snowfall in September
Port Reading, NJ

Average snowfall in September - Port Reading, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is March (0.83").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Port Reading, NJ

Average snowfall days in September - Port Reading, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature in September
Port Reading, NJ

Average sea temperature in September - Port Reading, NJ
  • Average sea temperature in September: 70.1°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

Average daylight in September /
Average sunshine in September
Port Reading, NJ

Average daylight in September / Average sunshine in September - Port Reading, NJ
  • Average daylight in September: 12h and 3min

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 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in September
Port Reading, NJ

Average sunshine days in September - Port Reading, NJ
  • Average sunshine days in September: 17.9 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (14.8 days).

Average UV index in September
Port Reading, NJ

Average UV index in September - Port Reading, 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, March, November and December (UV index 2).

Average cloud cover in September
Port Reading, NJ

Average cloud cover in September - Port Reading, NJ
  • Average cloud cover in September: 35

The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 30).

Average visibility in September
Port Reading, NJ

Average visibility in September - Port Reading, 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).

Port Reading, New Jersey, USA

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