The temperatures in New Brunswick in August are comfortable with low of 14°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in New Brunswick during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in New Brunswick in August 2025.
If you’re planning to visit New Brunswick in the near future, we highly recommend that you review the 14 day weather forecast for New Brunswick before you arrive.