Late summer · Weather & things to do
Duluth in August
Little changes in Duluth from July: highs stay near 77°F (25°C), lows near 59°F (15°C), and about 3.5 in (90 mm) of rain falls.
At 85/100 for comfort (2nd of 12), it's one of the best months to visit.
- Avg high
- 77°F (25°C)
- Avg low
- 59°F (15°C)
- Rain
- 3.5 in (90 mm)
- Humidity
- 72%
- Cloud cover
- 52%
- Daylight
- ~14 h 01 min
- Comfort score
- 85/100 · Great
What August feels like
Days are warm, averaging 77°F (25°C), easy weather for being outside from morning to evening.
Lows average 59°F (15°C).
Some rain is likely, about 3.5 in (90 mm) in the month, so pack for a shower or two.
Plan around August
August is one of Duluth's best months on the climate data.
- Last warm month for a while: September highs fall to 69°F.
- Comfort holds steady from July (84 → 85/100).
- August sits inside the Jun – Oct window our Minnesota North Shore route recommends.
What to pack for August
- Light, breathable clothes77°F afternoons
- Sunscreen, sunglasses and a hathigh UV on clear days
- Packable rain jacket or umbrellaabout 3.5 in of rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Duluth in August
August is good outdoor weather here, so these picks lean toward the open air.
Glensheen Mansion
1908 lakefront estate with original furnishings and terraced gardens.
Why now August scores 85/100 for comfort, good conditions for being outside.
Aerial Lift Bridge
Rising bridge over the ship canal that lifts for 1,000-foot lake freighters.
Why now Highs near 77°F and 3.5 in of monthly rain make this an easy outdoor pick.
Duluth Grill
Local-sourcing diner in West Duluth with hearty breakfasts.
Duluth Lakewalk
Paved shoreline path from Canal Park toward Brighton Beach along Lake Superior.
Why now One to do outside while the weather is on your side.
Skyline Parkway
Ridge road above the city with overlooks of the harbor and lake.
Nearby in August
- Grand Marais in August~106 mi · highs 77°F, 3.0 in rain · similar daytime temperatures, drier
- Minneapolis in August~137 mi · highs 81°F, 4.2 in rain · 2°C (4°F) warmer by day, wetter
- Decorah in August~241 mi · highs 80°F, 4.2 in rain · 2°C (3°F) warmer by day, wetter
- Door County in August~266 mi · highs 75°F, 3.3 in rain · 1°C (2°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 ~354 m to Duluth's ~200 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.
Duluth in August: quick answers
Is August a good time to visit Duluth?
Yes. On the climate data it's one of the best months, scoring 85/100. Expect highs of 77°F (25°C) and 3.5 in (90 mm) of rain. August is inside the Jun – Oct window our Minnesota North Shore route recommends.
How hot is Duluth in August?
Average highs are 77°F (25°C) and average lows 59°F (15°C), making it the 2nd-warmest month by daytime highs.
Does it rain a lot in Duluth in August?
Some: about 3.5 in (90 mm) of rain falls across August on average, the 3rd-wettest month of the year. The annual total is about 30.8 in (782 mm).
What should I pack for Duluth in August?
Bring light, breathable clothes (77°F afternoons), sunscreen, sunglasses and a hat (high UV on clear days), packable rain jacket or umbrella (about 3.5 in of rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Routes in season in August
- Minnesota North Shore Jun – Oct
Planning Duluth in August?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.