New Brunswick Weather in August

What's the weather like in New Brunswick (New Jersey) in August 2025?

The climate in New Brunswick during August can be summarized as warm and damp.

August is in the summer in New Brunswick and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a comfortable 29°C (83°F), whilst at night 17°C (63°F) is normal.

New Brunswick weather averages (imperial / metric)
Daytime temperature 28.6°C 83.4°F
Nightly temperature 17.3°C 63.1°F
Average temperature 22.9°C 73.2°F
Daily sunshine 9 hrs
Avg rainfall 113 mm 4.5 ins
Rainy days 9 days
Sea temperature 23.1°C 73.6°F
Humidity 69%
Windspeed 14.8kph 9 mph

On average August is the 2nd wettest month of the year in New Brunswick with around 113mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 9 hours of sunshine per day.

August temperatures in New Brunswick

New Brunswick average temperature in August

August rainfall

New Brunswick average rain in August

August hourly sunshine

New Brunswick average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in New Brunswick in August 2025.

Other monthly averages

Best places to visit in August

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

New Brunswick weather stats

New Brunswick weather statistics
Hottest month: July 29.2°C 84.6°F
Driest month: February 76mm 3ins
Sunniest month: August 9hrs
Coldest month: January 2.7°C 36.9°F
Wettest month: July 123mm 4.8ins
Map showing location of New Brunswick (40.48622, -74.45182) New Brunswick map pin © Google

Locations nearby

Top United States locations