August weather forecast
Bernardsville, NJ

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Weather in August

The last month of the summer, August, is also a moderately hot month in Bernardsville, New Jersey, with an average temperature varying between 63.9°F (17.7°C) and 81.9°F (27.7°C).

Temperature

August's onset records an average high-temperature of a still warm 81.9°F (27.7°C), a near match to July's 83.8°F (28.8°C). In the month of August, the average low-temperature usually rests at a refreshing 63.9°F (17.7°C).

Heat index

August's heat index is computed to be a tropical 87.8°F (31°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. 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

In Bernardsville, the average relative humidity in August is 75%.

Rainfall

In Bernardsville, in August, it is raining for 15.8 days, with typically 2.72" (69mm) of accumulated precipitation. In Bernardsville, during the entire year, the rain falls for 155.7 days and collects up to 27.64" (702mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of August, sunrise is at 5:55 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:31 pm EDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In August, a regular UV index of 6 translates into these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

The average high-temperature, in August, in Bernardsville, is 81.9°F (27.7°C), while the average low-temperature is 63.9°F (17.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in August?

The average relative humidity in August is 75%.

How much does it rain in August?

In Bernardsville, during August, the rain falls for 15.8 days and regularly aggregates up to 2.72" (69mm) of precipitation.

When it does not snow?

June through October are months without snowfall.

What is the average length of the day in August?

In Bernardsville, the average day length in August is 13h and 45min.

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 8:13 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:31 pm EDT.

How many hours of sunshine does Bernardsville have in August?

In Bernardsville, the average sunshine duration in August is 9.9h.

When is the highest UV index?

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 August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes 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
Bernardsville, NJ

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

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in August: 63.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in August
Bernardsville, NJ

Average pressure in August - Bernardsville, NJ
  • Average pressure in August: 29.99"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
Bernardsville, NJ

Average wind speed in August - Bernardsville, NJ
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in August
Bernardsville, NJ

Average humidity in August - Bernardsville, NJ
  • Average humidity in August: 75%

The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (74%).

Average rainfall in August
Bernardsville, NJ

Average rainfall in August - Bernardsville, NJ
  • Average rainfall in August: 2.72"

The wettest month (with the highest rainfall) is July (3.11").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in August
Bernardsville, NJ

Average rainfall days in August - Bernardsville, NJ
  • Average rainfall days in August: 15.8 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in August
Bernardsville, NJ

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

The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Bernardsville, NJ

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

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Bernardsville, NJ

Average daylight in August / Average sunshine in August - Bernardsville, 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: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in August
Bernardsville, NJ

Average sunshine days in August - Bernardsville, NJ
  • Average sunshine days in August: 12.5 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in August
Bernardsville, NJ

Average UV index in August - Bernardsville, 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
Bernardsville, NJ

Average cloud cover in August - Bernardsville, NJ
  • Average cloud cover in August: 35

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in August
Bernardsville, NJ

Average visibility in August - Bernardsville, NJ
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are May, June and September (5mi).

Bernardsville, New Jersey, USA

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