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Grand Manan Island Weather and Climate: A Comprehensive Guide

The climate in Grand Manan Island is marked by big temperature swings throughout the year. Temperatures range from pleasant during the warmest months to very cold in the cooler months. It also experiences much rain/snowfall throughout the year. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

In Grand Manan Island, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a pleasant 19°C in August. In January, the coolest month of the year, temperatures drop to a very cold 2°C.

At night, you can expect cooler temperatures, with averages dropping to around -6°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Grand Manan Island experiences significant rain/snowfall throughout the year, averaging 1403 mm of precipitation annually. Grand Manan Island experiences moderate seasonal variation in snow/rainfall, with monthly averages ranging from 150 mm in December, the wettest month, and 85 mm in July, the driest month.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Grand Manan Island

Wed   Jan 15
-3°C | -9°C
NW 5 m/s
partly cloudy and no rain

partly cloudy and no rain

Thu   Jan 16
-8°C | -11°C
NW 3 m/s
partly cloudy and no rain

partly cloudy and no rain

Fri   Jan 17
-6°C | -10°C
NW 2 m/s
partly cloudy and no rain

partly cloudy and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Grand Manan Island in Canada

Other facts from our historical weather data:
  • Which is the warmest month in Grand Manan Island?
    August has an average maximum temperature of 19°C and is the warmest month of the year.
  • Which is the coldest month in Grand Manan Island?
    The coldest month is January with an average maximum temperature of 2°C.
  • Which is the wettest month in Grand Manan Island?
    December tops the wettest month list with 150 mm of rainfall.
  • Which is the driest month in Grand Manan Island?
    July is the driest month with 85 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.