August weather forecast
Jersey City, NJ

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Weather in August

August remains a component of the summer season in Jersey City, demonstrating a marginal decline with temperature ranging between 68.9°F (20.5°C) and 81.9°F (27.7°C). Despite slow reduction in daylight, Jersey City continues to enjoy the vibrancy and warmth of the summer sun. The end of the month hints at fall, with the stray falling leaf heralding the season to come.

Temperature

The average high-temperature during August registers at a still warm 81.9°F (27.7°C), maintaining a close resemblance to the previous month. Jersey City experiences an average low-temperature of 68.9°F (20.5°C) in the month of August.

Heat index

In August, the heat index is calculated to be a tropical 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Bear in mind that the heat index values are determined for shaded areas and light breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

The least humid month is August, with an average relative humidity of 71%.

Rainfall

In Jersey City, during August, the rain falls for 15.5 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Jersey City, during the entire year, the rain falls for 163.4 days and collects up to 34.84" (885mm) of precipitation.

Snowfall

May through October are months without snowfall in Jersey City, New Jersey.

Ocean temperature

The month with the warmest seawater in Jersey City is August, with an average ocean temperature of 74.1°F (23.4°C).
Note: When thinking about a swim in 74.1°F (23.4°C) waters, consider your cold tolerance, the day's sunshine, wind, and air temperature. It is a fun fact that Olympic swimmers dive into waters of 77°F (25°C) to 82.4°F (28°C).

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of the month, sunrise is at 5:53 am and sunset at 8:11 pm. On the last day of August, sunrise is at 6:23 am and sunset at 7:29 pm EDT.

Sunshine

In August, the average sunshine in Jersey City is 10.4h.

UV index

The months with the highest UV index in Jersey City are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Caution! The Sun's UV rays become stronger due to reflections from water and sand.
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Frequently asked questions

What is the usual temperature for Jersey City in August?

The average high-temperature and low-temperature in Jersey City during August are 81.9°F (27.7°C) and 68.9°F (20.5°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 86°F (30°C).

What is the least humid month in Jersey City?

August is the least humid month in Jersey City, New Jersey, with an average relative humidity of 71%.

What is the average humidity in August in Jersey City?

In Jersey City, the average relative humidity in August is 71%.

How many days does it rain in August in Jersey City?

In August, in Jersey City, the rain falls for 15.5 days. Throughout August, 3.23" (82mm) of precipitation is accumulated.

When it does not snow in Jersey City?

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

What month is the ocean warmest in Jersey City?

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

How warm is the water in August in Jersey City?

In Jersey City, New Jersey, in August, the average water temperature is 74.1°F (23.4°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 74.1°F (23.4°C) water may be enjoyable.

What is the average length of the day in August in Jersey City?

The average day length in August in Jersey City, New Jersey, is 13h and 45min.

When are sunrise and sunset in August in Jersey City?

In August, on the first day of the month, sunrise is at 5:53 am and sunset at 8:11 pm. On the last day of the month, in Jersey City, sunrise is at 6:23 am and sunset at 7:29 pm EDT.

How long on average sun shines in August in Jersey City?

The average sunshine duration in August in Jersey City is 10.4h.

What is the month with the highest UV index in Jersey City?

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

What is the UV index intensity in August in Jersey City?

In Jersey City, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe 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
Jersey City, NJ

Average temperature in August - Jersey City, NJ
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in August: 68.9°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

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Average pressure in August
Jersey City, NJ

Average pressure in August - Jersey City, NJ
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Jersey City, NJ

Average wind speed in August - Jersey City, NJ
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

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Average humidity in August
Jersey City, NJ

Average humidity in August - Jersey City, NJ
  • Average humidity in August: 71%

The months with the highest relative humidity are February and December (76%).
The month with the lowest relative humidity is August (71%).

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Average rainfall in August
Jersey City, NJ

Average rainfall in August - Jersey City, NJ
  • Average rainfall in August: 3.23"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is September (2.2").

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Average rainfall days in August
Jersey City, NJ

Average rainfall days in August - Jersey City, NJ
  • Average rainfall days in August: 15.5 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9 days).

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Average snowfall in August
Jersey City, NJ

Average snowfall in August - Jersey City, NJ
  • Average snowfall in August: 0"

The month with the highest snowfall is March (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Jersey City, NJ

Average snowfall days in August - Jersey City, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in August
Jersey City, NJ

Average sea temperature in August - Jersey City, 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).

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Average daylight in August /
Average sunshine in August
Jersey City, NJ

Average daylight in August / Average sunshine in August - Jersey City, 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 48min).

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Average sunshine days in August
Jersey City, NJ

Average sunshine days in August - Jersey City, NJ
  • Average sunshine days in August: 13.1 days

The month with the most sunshine days is January (17.8 days).
The months with the least sunshine days are June and July (11.3 days).

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Average UV index in August
Jersey City, NJ

Average UV index in August - Jersey City, 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).

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Average cloud cover in August
Jersey City, NJ

Average cloud cover in August - Jersey City, NJ
  • Average cloud cover in August: 30

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 August
Jersey City, NJ

Average visibility in August - Jersey City, 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).

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Jersey City, New Jersey, USA

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