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 notes an average high-temperature of a still warm 82.6°F (28.1°C) in August, displaying minor variation from July. In New Brunswick, August's nights observe an average temperature dip to a comfortable 67.1°F (19.5°C).

Heat index

For August, the heat index is evaluated at a tropical 87.8°F (31°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

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

Rainfall

In New Brunswick, in August, it is raining for 15.2 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, there are 149.4 rainfall days, and 28.43" (722mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall.

Daylight

The average length of the day in August in New Brunswick is 13h and 44min.
On the first day of August, 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

In August, the average sunshine 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 estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

How hot is August in New Brunswick?

In August, in New Brunswick, the average high-temperature is 82.6°F (28.1°C), and the average low-temperature is 67.1°F (19.5°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 87.8°F (31°C).

What are the least humid months in New Brunswick?

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

What is the average humidity in August in New Brunswick?

In August, the average relative humidity is 72%.

How much does it rain in New Brunswick 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?

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

What is the average length of the day in August in New Brunswick?

In New Brunswick, New Jersey, the average day length in August is 13h and 44min.

When is the sunrise / sunset in August in New Brunswick?

On the first day of August, 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.

How long on average sun shines in August in New Brunswick?

In August, the average sunshine duration is 9.9h.

When is 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 in New Brunswick, New Jersey.

How high is the UV index in August in New Brunswick?

In August, the average daily maximum UV index in New Brunswick, New Jersey, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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New Brunswick, New Jersey, USA

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