New Brunswick Weather & Climate: Canada

Climate by month across New Brunswick, Canada, average temperatures, rainfall and the best time to visit.

Climate overview of New Brunswick

When planning a visit to New Brunswick in Canada, it helps to know that temperatures typically range from -2°C (28°F) in January up to 25°C (77°F) during the peak of July. Our detailed climate overview is based on data from Moncton, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.

New Brunswick offers pleasant conditions in June, July, August and September, with temperatures typically ranging from 21°C (70°F) to 25°C (77°F).

The coldest months are usually in January, February, March, November and December.

When it comes to rainfall, New Brunswick maintains fairly consistent rainfall patterns throughout the year, with December seeing 115 mm (4.5 in) and August receiving 80 mm (3.1 in).

July is the sunniest period, with ideal conditions for exploring the region and all it has to offer.

Explore New Brunswick by month

Pick a month to see the average temperature, rainfall and sunshine in New Brunswick — and find the best time to visit. (based on Moncton)

Popular cities by month

Compare cities per month. Toggle cities on/off.

Moncton Grand Manan Island Saint John Fredericton Saint Andrews Edmundston
Day temperature (°C)
Monthly rainfall (mm)

Climate map of New Brunswick

Average daily temperature, monthly rainfall & sunshine hours across cities.

Avg day temp (°C)
32°

Compare popular cities

Average daytime and nighttime temperatures, yearly rainfall and sunshine.

Moncton -2°C (28°F) 25°C (77°F) -13°C (9°F) 14°C (57°F) 1154 mm (45 in) 1,998 hours
Grand Manan Island 2°C (36°F) 19°C (66°F) -6°C (21°F) 14°C (57°F) 1403 mm (55 in)
Saint John -1°C (30°F) 21°C (70°F) -10°C (14°F) 14°C (57°F) 1384 mm (54 in)
Fredericton -3°C (27°F) 26°C (79°F) -14°C (7°F) 14°C (57°F) 1225 mm (48 in)
Saint Andrews -1°C (30°F) 25°C (77°F) -11°C (12°F) 15°C (59°F) 1207 mm (48 in)
Edmundston -7°C (19°F) 24°C (75°F) -18°C (0°F) 12°C (54°F) 1097 mm (43 in)

Places in New Brunswick, Canada

Select a city to see its average temperature, precipitation and hours of sunshine over the year.

Popular cities

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Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.