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Grand Manan, New Brunswick typically has a moderate climate year-round with warm summers and mild winters. The average temperature ranges between -2 and 16 °C (28.4 and 60.8 °F). During the summer months, temperatures typically reach an average high of 25 °C (77°F) and an average low of 15 °C (59°F). In the winter months, temperatures range from an average high of 0 °C (32°F) to an average low of -8 °C (17.6°F).
Rainfall is fairly consistent throughout the year, with an average of 1063 mm (41.8 inches) annually. The wettest months are October and April, with an average of 125 mm (4.9 inches) of rainfall each month. The driest months are January and February, with an average of 69 mm (2.7 inches) of rainfall each month. Snowfall averages around 127 cm (50 inches) each year, with the snowiest months being December and January.
Grand Manan experiences mostly cloudy days year-round, with an average of 213 days with overcast skies annually. The sunniest months are July and August with an average of 6.2 hours of sunshine each day.
As of 2020, the city population is 2360.
This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Grand Manan, New Brunswick.