September weather forecast and climate
Deepwater, NJ

The first month of the autumn, September, is still a warm month in Deepwater, New Jersey, with temperature in the range of an average low of 60.8°F (16°C) and an average high of 76.5°F (24.7°C).

Temperature

In Deepwater, the average high-temperature in September slightly decreases, from 83.5°F (28.6°C) in August, to a still warm 76.5°F (24.7°C). In September, the average low-temperature is 60.8°F (16°C).

Humidity

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

Rainfall

September is the month with the least rainfall in Deepwater. Rain falls for 11.5 days and accumulates 1.61" (41mm) of precipitation.

Snowfall

June through October are months without snowfall in Deepwater.

Daylight

In September, the average length of the day in Deepwater, New Jersey, is 12.4h.

Sunshine

The average sunshine in September is 9h.

UV index

In Deepwater, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Deepwater?

In September, the average high-temperature is 76.5°F (24.7°C), and the average low-temperature is 60.8°F (16°C).

What is the average humidity in September in Deepwater?

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

How much does it rain in Deepwater in September?

In Deepwater, in September, during 11.5 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

What is the driest month in Deepwater?

September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.61" (41mm) of precipitation.

When it does not snow in Deepwater?

In Deepwater, New Jersey, snow does not fall in June through October.

How many hours of daylight does Deepwater have in September?

In September, the average length of the day in Deepwater, New Jersey, is 12.4h.

How many hours of sunshine does Deepwater have in September?

In September, the average sunshine in Deepwater is 9h.

How high is the UV index in September in Deepwater?

The average daily maximum UV index in September in Deepwater is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.
Average temperature in September - Deepwater, NJ
  • Average high temperature in September: 24.7°C

The warmest month (with the highest average high temperature) is July (29.6°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in September: 16°C

The month with the highest average low temperature is July (20.3°C).
The coldest month (with the lowest average low temperature) is January (-3.2°C).

Average pressure in September - Deepwater, NJ
  • Average pressure in September: 1017.7mbar

The month with the highest atmospheric pressure is November (1020.1mbar).
The month with the lowest atmospheric pressure is June (1013.8mbar).

Average wind speed in September - Deepwater, NJ
  • Average wind speed in September: 9.6km/h

The windiest month (with the highest average wind speed) is March (14.1km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).

Average humidity in September - Deepwater, NJ
  • Average humidity in September: 77%

The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in September - Deepwater, NJ
  • Average rainfall in September: 41mm

The wettest month (with the highest rainfall) is August (68mm).
The driest month (with the least rainfall) is September (41mm).

Average rainfall days in September - Deepwater, NJ
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in September - Deepwater, NJ
  • Average snowfall in September: 0mm

The month with the highest snowfall is March (56mm).
Months with the least snowfall are June, July, August, September and October (0mm).

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

The month with the highest number of snowfall days is January (5.3 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Deepwater, NJ
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 9h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.9h).

Average sunshine days in September - Deepwater, NJ
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12.2 days).

Average UV index in September - Deepwater, NJ
  • Average UV index in September: 5

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September - Deepwater, NJ
  • Average cloud cover in September: 36

Months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in September - Deepwater, NJ
  • Average visibility in September: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).