September weather forecast
Matawan, NJ

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Weather in September

The first month of the autumn, September, is still a warm month in Matawan, New Jersey, with an average temperature fluctuating between 62.4°F (16.9°C) and 74.5°F (23.6°C).

Temperature

September indicates a minor shift in the average high-temperature, from August's 81.1°F (27.3°C) to a still moderately hot 74.5°F (23.6°C). Matawan's average low-temperature during September nights is observed to be a comfortable 62.4°F (16.9°C).

Humidity

In Matawan, the average relative humidity in September is 75%.

Rainfall

In Matawan, New Jersey, during September, the rain falls for 13.5 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Matawan, during the entire year, the rain falls for 153 days and collects up to 28.7" (729mm) of precipitation.

Snowfall

In Matawan, snow does not fall in May through October.

Daylight

The average length of the day in September in Matawan is 12h and 27min.
On the first day of September in Matawan, 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

The average daily maximum UV index in September in Matawan is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

What is the temperature in September in Matawan?

In September, in Matawan, the average high-temperature is 74.5°F (23.6°C), and the average low-temperature is 62.4°F (16.9°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 86°F (30°C).

What is the average humidity in September in Matawan?

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

How many days does it rain in September in Matawan?

In September, the rain falls for 13.5 days. Throughout September, 1.77" (45mm) of precipitation is accumulated.

When it does not snow in Matawan?

In Matawan, New Jersey, snow does not fall in May through October.

How many hours of daylight does Matawan have in September?

In September, the average day length in Matawan is 12h and 27min.

When is the sunrise / sunset in September in Matawan?

On the first day of September in Matawan, New Jersey, 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 long on average sun shines in September in Matawan?

In Matawan, New Jersey, the average sunshine duration in September is 8.9h.

What is the UV index reading in September in Matawan?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes 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
Matawan, NJ

Average temperature in September - Matawan, NJ
  • Average high temperature in September: 74.5°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in September: 62.4°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

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Average pressure in September
Matawan, NJ

Average pressure in September - Matawan, 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
Matawan, NJ

Average wind speed in September - Matawan, NJ
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in September
Matawan, NJ

Average humidity in September - Matawan, NJ
  • Average humidity in September: 75%

The months with the highest relative humidity are May and June (77%).
The months with the lowest relative humidity are March, April, August and November (73%).

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Average rainfall in September
Matawan, NJ

Average rainfall in September - Matawan, NJ
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is July (3.43").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in September
Matawan, NJ

Average rainfall days in September - Matawan, NJ
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (8.2 days).

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Average snowfall in September
Matawan, NJ

Average snowfall in September - Matawan, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Matawan, NJ

Average snowfall days in September - Matawan, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (5 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
Matawan, NJ

Average daylight in September / Average sunshine in September - Matawan, 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 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 48min).

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Average sunshine days in September
Matawan, NJ

Average sunshine days in September - Matawan, NJ
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (11.5 days).

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Average UV index in September
Matawan, NJ

Average UV index in September - Matawan, 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).

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Average cloud cover in September
Matawan, NJ

Average cloud cover in September - Matawan, 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).

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Average visibility in September
Matawan, NJ

Average visibility in September - Matawan, 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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Matawan, New Jersey, USA

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