Grand Manan Island Weather in July
Grand Manan Island in July sees moderate daytime temperatures of 18°C (64°F) and nighttime lows of 14°C (57°F). With just 85 mm (3.3 in) of rainfall on average, it's the driest month of the year.
Rainfall in Grand Manan Island in July
Clear skies and little rain are the norm this month. A great time to spend time outdoors. Typically around 11 days of rainfall are expected, averaging 85 mm (3.3 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Grand Manan Island in July
Daytime temperatures in Grand Manan Island reach 18°C (64°F) in July, dropping to 14°C (57°F) at night. The summer season takes place during July. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 14°C (57°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.If you're a fan of comfortable temperatures and drier conditions, July is a great time to visit.
Grand Manan Island Temperature in July
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Grand Manan Island Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grand Manan Island - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Grand Manan Island typically stay consistent throughout July, with daily highs averaging around 18°C (64°F). Nights are cool, with lows typically ranging from 12°C (54°F) to 14°C (57°F).
Average temperatures in July
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Historical weather records for Grand Manan Island in July
Browse day-by-day weather records for Grand Manan Island spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Grand Manan Island historical weather extremes in July
Based on 23 years of weather observations in Grand Manan Island between 2003 and 2026, these are the recorded extremes.
- Grand Manan Island recorded its highest July temperature of 31°C (88°F) on July 4, 2018.
- The coldest July day was on July 4, 2021, with a maximum of 13°C (55°F).
- The lowest overnight temperature recorded in July was 5°C (41°F) (July 3, 2007).
Best Places in Canada in July
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in July →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Grand Manan Island in July
For Grand Manan Island in July, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.
What To Do in Grand Manan Island in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling6/10 -
Walking6/10 -
Camping8/10 -
Outdoor sports9/10
Grand Manan Island 3-Day Forecast
See the full Grand Manan Island climate overview or explore weather in Canada.
Popular in July
Where to go in July - average daytime high across popular destinations.
Niagara Falls
27°C (81°F) Montréal28°C (82°F) Ottawa27°C (81°F) Quebec City
26°C (79°F) Toronto26°C (79°F) Calgary24°C (75°F) Vancouver22°C (72°F) Whistler
19°C (66°F) 
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