Late summer · Weather & things to do
Grand Marais in August
Little changes in Grand Marais from July: highs stay near 77°F (25°C), lows near 58°F (14°C), and about 3.0 in (75 mm) of rain falls.
At 83/100 for comfort (the top score of the year), it's one of the best months to visit.
- Avg high
- 77°F (25°C)
- Avg low
- 58°F (14°C)
- Rain
- 3.0 in (75 mm)
- Humidity
- 73%
- Cloud cover
- 62%
- Daylight
- ~14 h 05 min
- Comfort score
- 83/100 · Great
What August feels like
Warm afternoons near 77°F (25°C) make long days outdoors easy.
Lows average 58°F (14°C).
Some rain is likely, about 3.0 in (75 mm) in the month, so pack for a shower or two.
Plan around August
August is one of Grand Marais's best months on the climate data.
- Last warm month for a while: September highs fall to 68°F.
- Comfort holds steady from July (82 → 83/100).
- August sits inside the Jun – Oct window our Minnesota North Shore route recommends.
What to pack for August
- Light, breathable clotheshighs average 77°F
- Sunscreen, sunglasses and a hatstrong sun this month
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost picks involve some walking
What to do in Grand Marais in August
With conditions on your side, the picks below favor time outside.
Judge C.R. Magney State Park
Trail to the Devil's Kettle, where half the Brule River seems to vanish into a pothole.
Why now August scores 83/100 for comfort, good conditions for being outside.
North House Folk School
Harborfront school for traditional crafts, with short classes and sails on the schooner Hjordis.
Sven & Ole's
Long-running pizza joint with the Pickle Herring pub attached.
World's Best Donuts
Seasonal donut shop near the harbor since 1969.
Why now Our curated notes say it's best early morning, May–Oct.
Cascade River State Park
Short loop past stepped waterfalls in a narrow gorge just off Hwy 61.
Why now Highs near 77°F and 3.0 in of monthly rain make this an easy outdoor pick.
Nearby in August
- Duluth in August~106 mi · highs 77°F, 3.5 in rain · similar daytime temperatures, wetter
- Minneapolis in August~237 mi · highs 81°F, 4.2 in rain · 2°C (4°F) warmer by day, wetter
- Door County in August~242 mi · highs 75°F, 3.3 in rain · 1°C (2°F) cooler by day, about as wet
- Sleeping Bear Dunes in August~290 mi · highs 69°F, 3.0 in rain · 4°C (8°F) cooler by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~468 m to Grand Marais's ~186 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Grand Marais in August: quick answers
Is August a good time to visit Grand Marais?
Yes. On the climate data it's one of the best months, scoring 83/100. Expect highs of 77°F (25°C) and 3.0 in (75 mm) of rain. August is inside the Jun – Oct window our Minnesota North Shore route recommends.
How hot is Grand Marais in August?
Average highs are 77°F (25°C) and average lows 58°F (14°C), making it the 2nd-warmest month by daytime highs.
Does it rain a lot in Grand Marais in August?
Some: about 3.0 in (75 mm) of rain falls across August on average, the 5th-wettest month of the year. The annual total is about 28.5 in (723 mm).
What should I pack for Grand Marais in August?
Bring light, breathable clothes (highs average 77°F), sunscreen, sunglasses and a hat (strong sun this month), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most picks involve some walking).
More on Grand Marais
Routes in season in August
- Minnesota North Shore Jun – Oct
Planning Grand Marais in August?
Share this August plan with your group, poll everyone on dates and keep the packing list in one place.