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Late summer · Weather & things to do

Sleeping Bear Dunes in August

Sleeping Bear Dunes's warmest month brings highs averaging 69°F (21°C), lows of 65°F (19°C) and about 3.0 in (77 mm) of rain.

It scores 71/100 for comfort, 2nd of 12, which makes it a solid shoulder-season month.

Sleeping Bear Dunes, Michigan, United States
Avg high
69°F (21°C)
Avg low
65°F (19°C)
Rain
3.0 in (77 mm)
Humidity
81%
Cloud cover
79%
Daylight
~13 h 53 min
Comfort score
71/100 · Good

What August feels like

Highs near 69°F (21°C) make for comfortable sightseeing weather.

Nights cool to an average low of 65°F (19°C).

Some rain is likely, about 3.0 in (77 mm) in the month, so pack for a shower or two.

Skies are often grey, with average cloud cover around 79%.

Sleeping Bear Dunes: August compared with the months either side
JulyAugustSeptember
Avg high67°F20°C69°F21°C65°F18°C
Avg low63°F17°C65°F19°C60°F16°C
Rain2.7 in68 mm3.0 in77 mm3.4 in87 mm
Daylight15 h 04 min13 h 53 min12 h 18 min
Comfort697181

Plan around August

August is shoulder season: good weather, a step below the best months (September).

What to pack for August

What to do in Sleeping Bear Dunes in August

With conditions on your side, the picks below favor time outside.

Nearby in August

NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.

Sleeping Bear Dunes in August: quick answers

Is August a good time to visit Sleeping Bear Dunes?

It's a good shoulder-season choice, scoring 71/100 against a best of 81 in September. Expect highs of 69°F (21°C) and 3.0 in (77 mm) of rain. August is inside the Jun – Sep window our Michigan Lake Shore route recommends.

How hot is Sleeping Bear Dunes in August?

Average highs are 69°F (21°C) and average lows 65°F (19°C), making it the warmest month by daytime highs.

Does it rain a lot in Sleeping Bear Dunes in August?

Some: about 3.0 in (77 mm) of rain falls across August on average, the 6th-wettest month of the year. The annual total is about 34.0 in (863 mm).

What should I pack for Sleeping Bear Dunes in August?

Bring a warm layer for evenings (nights drop to 65°F), packable rain jacket or umbrella (about 3.0 in of rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).

Routes in season in August

Planning Sleeping Bear Dunes in August?

Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.

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