August weather forecast
Green Island, NJ

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Weather in August

August, the last month of the summer in Green Island, is also a moderately hot month, with temperature in the range of an average low of 70.5°F (21.4°C) and an average high of 79.7°F (26.5°C).

Temperature

Stepping into August, Green Island records an average high-temperature of a still warm 79.7°F (26.5°C), almost consistent with July. Green Island reports an average low-temperature of 70.5°F (21.4°C) during the nights of August.

Humidity

In Green Island, the average relative humidity in August is 76%.

Rainfall

In Green Island, during August, the rain falls for 13.4 days and regularly aggregates up to 2.32" (59mm) of precipitation. Throughout the year, in Green Island, New Jersey, there are 137.7 rainfall days, and 19.09" (485mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Green Island, the average length of the day in August is 13h and 42min.
On the first day of August, sunrise is at 5:55 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:29 pm EDT.

Sunshine

The average sunshine in August is 10.6h.

UV index

The months with the highest UV index in Green Island are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

The high-temperature, in August, in Green Island, records 79.7°F (26.5°C), while the low-temperature is 70.5°F (21.4°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is appraised at 86°F (30°C).

What is the average humidity in August?

The average relative humidity in August is 76%.

How many days does it rain in August?

In Green Island, in August, during 13.4 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

When it does not snow?

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

How many hours of daylight does Green Island have in August?

In August, the average day length is 13h and 42min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:55 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:29 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.6h.

When is the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high 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 August
Green Island, NJ

Average temperature in August - Green Island, NJ
  • Average high temperature in August: 79.7°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in August: 70.5°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

Average pressure in August
Green Island, NJ

Average pressure in August - Green Island, NJ
  • Average pressure in August: 29.98"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 August
Green Island, NJ

Average wind speed in August - Green Island, NJ
  • Average wind speed in August: 8.1mph

The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is July (8mph).

Average humidity in August
Green Island, NJ

Average humidity in August - Green Island, NJ
  • Average humidity in August: 76%

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%).

Average rainfall in August
Green Island, NJ

Average rainfall in August - Green Island, NJ
  • Average rainfall in August: 2.32"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in August
Green Island, NJ

Average rainfall days in August - Green Island, NJ
  • Average rainfall days in August: 13.4 days

The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is January (7 days).

Average snowfall in August
Green Island, NJ

Average snowfall in August - Green Island, NJ
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Green Island, NJ

Average snowfall days in August - Green Island, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Green Island, NJ

Average daylight in August / Average sunshine in August - Green Island, NJ
  • Average daylight in August: 13h and 4min

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 August: 10h and 4min

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).

Average sunshine days in August
Green Island, NJ

Average sunshine days in August - Green Island, NJ
  • Average sunshine days in August: 14.6 days

The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is July (11.9 days).

Average UV index in August
Green Island, NJ

Average UV index in August - Green Island, NJ
  • Average UV index in August: 6

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).

Average cloud cover in August
Green Island, NJ

Average cloud cover in August - Green Island, NJ
  • Average cloud cover in August: 28

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).

Average visibility in August
Green Island, NJ

Average visibility in August - Green Island, NJ
  • Average visibility in August: 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).

Green Island, New Jersey, USA

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