August weather forecast
Sewaren, NJ

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Weather in August

August, the last month of the summer in Sewaren, is another warm month, with an average temperature ranging between min 68.5°F (20.3°C) and max 81.3°F (27.4°C).

Temperature

August's weather displays an average high-temperature of a still warm 81.3°F (27.4°C), slightly varied from July's 82.8°F (28.2°C). Sewaren records an average nighttime low-temperature of 68.5°F (20.3°C) throughout August.

Heat index

August's mean heat index is estimated at a hot 86°F (30°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.

Humidity

March, April, August and November, with an average relative humidity of 73%, are the least humid months.

Rainfall

In August, in Sewaren, New Jersey, the rain falls for 15.4 days. Throughout August, 2.91" (74mm) of precipitation is accumulated. In Sewaren, during the entire year, the rain falls for 157.5 days and collects up to 31.42" (798mm) of precipitation.

Snowfall

In Sewaren, New Jersey, snow does not fall in May through September.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 74.1°F (23.4°C).
Note: Cold sensitivities vary, but with the right amount of sunshine, a gentle breeze, and a warm day, a swim in 74.1°F (23.4°C) waters might be just right. Remember, Olympic swimmers are used to waters between 77°F (25°C) and 82.4°F (28°C).

Daylight

In Sewaren, the average length of the day in August is 13h and 44min.
On the first day of the month, sunrise is at 5:54 am and sunset at 8:11 pm. On the last day of August, in Sewaren, sunrise is at 6:23 am and sunset at 7:30 pm EDT.

Sunshine

In Sewaren, the average sunshine in August is 10.3h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. To cut down UV radiation exposure by about half, sport a wide-brim hat. Caution! Sand and water reflections can notably increase the UV radiation intensity.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in Sewaren?

The high-temperature, in August, in Sewaren, is 81.3°F (27.4°C), while the low-temperature averages to 68.5°F (20.3°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in August is estimated at 86°F (30°C).

What are the least humid months in Sewaren?

March, April, August and November, with an average relative humidity of 73%, are the least humid months in Sewaren.

What is the average humidity in August in Sewaren?

In Sewaren, the average relative humidity in August is 73%.

How much does it rain in Sewaren in August?

In Sewaren, during August, the rain falls for 15.4 days and regularly aggregates up to 2.91" (74mm) of precipitation.

When it does not snow in Sewaren?

In Sewaren, snow does not fall in May through September.

What is the month with the warmest ocean in Sewaren?

With an average ocean temperature of 74.1°F (23.4°C), August is the month with the warmest seawater in Sewaren, New Jersey.

How warm is the water in August in Sewaren?

In Sewaren, New Jersey, the average seawater temperature in August is 74.1°F (23.4°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 74.1°F (23.4°C) water.

What is the average length of the day in August in Sewaren?

In Sewaren, the average day length in August is 13h and 44min.

When is the sunrise / sunset in August in Sewaren?

In August, on the first day of the month, sunrise is at 5:54 am and sunset at 8:11 pm. On the last day of the month, in Sewaren, sunrise is at 6:23 am and sunset at 7:30 pm EDT.

How long on average sun shines in August in Sewaren?

The average sunshine duration in August in Sewaren is 10.3h.

What are the months with the highest UV index in Sewaren?

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

What is the UV index intensity in August in Sewaren?

In Sewaren, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat from 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 August
Sewaren, NJ

Average temperature in August - Sewaren, NJ
  • Average high temperature in August: 81.3°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in August: 68.5°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 (25.9°F).

Average pressure in August
Sewaren, NJ

Average pressure in August - Sewaren, 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
Sewaren, NJ

Average wind speed in August - Sewaren, NJ
  • Average wind speed in August: 6.7mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in August
Sewaren, NJ

Average humidity in August - Sewaren, NJ
  • Average humidity in August: 73%

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

Average rainfall in August
Sewaren, NJ

Average rainfall in August - Sewaren, NJ
  • Average rainfall in August: 2.91"

The wettest months (with the highest rainfall) are July and December (3.31").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in August
Sewaren, NJ

Average rainfall days in August - Sewaren, NJ
  • Average rainfall days in August: 15.4 days

The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in August
Sewaren, NJ

Average snowfall in August - Sewaren, NJ
  • Average snowfall in August: 0"

The month with the highest snowfall is March (3.39").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Sewaren, NJ

Average snowfall days in August - Sewaren, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature in August
Sewaren, NJ

Average sea temperature in August - Sewaren, NJ
  • Average sea temperature in August: 74.1°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 August /
Average sunshine in August
Sewaren, NJ

Average daylight in August / Average sunshine in August - Sewaren, 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 18min).

  • Average sunshine in August: 10h and 2min

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 August
Sewaren, NJ

Average sunshine days in August - Sewaren, NJ
  • Average sunshine days in August: 13.7 days

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (12.2 days).

Average UV index in August
Sewaren, NJ

Average UV index in August - Sewaren, 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, March, November and December (UV index 2).

Average cloud cover in August
Sewaren, NJ

Average cloud cover in August - Sewaren, NJ
  • Average cloud cover in August: 31

The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in August
Sewaren, NJ

Average visibility in August - Sewaren, 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).

Sewaren, New Jersey, USA

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