August weather forecast
New Brunswick, NJ

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An aerial panorama of the city of Brunswick, New Jersey, seen with its deep tree cover, a large river, and bridges over the river
An aerial panorama of the city of Brunswick, New Jersey, seen with its deep tree cover, a large river, and bridges over the river

Weather in August

August weather in New Brunswick continues the trail of July, carrying forward the intense heat and maintaining the summer's peak. The city experiences the last month of high temperatures before a shift toward the cooler fall temps of September. By this time, the humidity starts to slightly drop, paving the way for somewhat more comfortable days. However, high UV index still warrants the need for sun protection for outdoor enthusiasts. August’s weather, albeit less heated than July, still commands respect with a temperature range from 67.1°F (19.5°C) to 82.6°F (28.1°C) and almost 3" (76mm) of rainfall to boot.

Temperature

New Brunswick's weather in August indicates an average high-temperature of a still warm 82.6°F (28.1°C), nearly consistent with the 84.6°F (29.2°C) of July. New Brunswick's average low-temperature in the month of August is recorded at a comfortable 67.1°F (19.5°C).

Heat index

For August, the heat index is evaluated at a hot 87.8°F (31°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
For clarity, heat index numbers account for light winds and areas under shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

April and August, with an average relative humidity of 72%, are the least humid months.

Rainfall

In New Brunswick, during August, the rain falls for 15.2 days and regularly aggregates up to 2.91" (74mm) of precipitation. Throughout the year, there are 149.4 rainfall days, and 28.43" (722mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 44min.
On the first day of August in New Brunswick, sunrise is at 5:55 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:30 pm EDT.

Sunshine

The average sunshine in August is 9.9h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 6 suggests this advice:
Guard against overexposure. Protection from sun-induced harm is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in New Brunswick in August?

The high-temperature, in August, in New Brunswick, is 82.6°F (28.1°C), while the low-temperature averages to 67.1°F (19.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 87.8°F (31°C).

What is the least humid month?

The months with the lowest humidity in New Brunswick are April and August, with an average relative humidity of 72%.

What is the average humidity in August?

In New Brunswick, New Jersey, the average relative humidity in August is 72%.

How many days does it rain in August?

In New Brunswick, in August, during 15.2 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

When it does not snow?

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

How many hours of daylight does New Brunswick have in August?

The average day length in August is 13h and 44min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:55 am and sunset at 8:12 pm. On the last day of the month, in New Brunswick, sunrise is at 6:24 am and sunset at 7:30 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August in New Brunswick is 9.9h.

What is the month with the highest UV index in New Brunswick?

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

How high is the UV index in August?

The average daily maximum UV index in August in New Brunswick is 6. A UV Index value 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
New Brunswick, NJ

Average temperature in August - New Brunswick, NJ
  • Average high temperature in August: 82.6°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in August: 67.1°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).

Average pressure in August
New Brunswick, NJ

Average pressure in August - New Brunswick, 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
New Brunswick, NJ

Average wind speed in August - New Brunswick, NJ
  • Average wind speed in August: 5.9mph

The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity in August
New Brunswick, NJ

Average humidity in August - New Brunswick, NJ
  • Average humidity in August: 72%

The months with the highest relative humidity are February, October and December (77%).
The months with the lowest relative humidity are April and August (72%).

Average rainfall in August
New Brunswick, NJ

Average rainfall in August - New Brunswick, NJ
  • Average rainfall in August: 2.91"

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in August
New Brunswick, NJ

Average rainfall days in August - New Brunswick, NJ
  • Average rainfall days in August: 15.2 days

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in August
New Brunswick, NJ

Average snowfall in August - New Brunswick, NJ
  • Average snowfall in August: 0"

The month with the highest snowfall is March (3.5").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
New Brunswick, NJ

Average snowfall days in August - New Brunswick, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.4 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
New Brunswick, NJ

Average daylight in August / Average sunshine in August - New Brunswick, 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 36min).

Average sunshine days in August
New Brunswick, NJ

Average sunshine days in August - New Brunswick, NJ
  • Average sunshine days in August: 12.9 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is July (11.1 days).

Average UV index in August
New Brunswick, NJ

Average UV index in August - New Brunswick, NJ
  • Average UV index in August: 6

The months with the highest UV index are May, 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
New Brunswick, NJ

Average cloud cover in August - New Brunswick, NJ
  • Average cloud cover in August: 34

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 33).

Average visibility in August
New Brunswick, NJ

Average visibility in August - New Brunswick, NJ
  • Average visibility in August: 6mi

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

New Brunswick, New Jersey, USA

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