Door Peninsula
Cape Wisconsin peninsula between Green Bay and Lake Michigan
Running into Lake Michigan, Wisconsin’s Door Peninsula is known for shoreline drives, lighthouses, state parks, cherry orchards and boating; visitors camp, sail and visit small fishing towns.
The Door Peninsula is a long, narrow peninsula in northeastern Wisconsin that separates Green Bay from the main body of Lake Michigan. It forms most of Door County and is known for its shoreline, parks and small coastal towns.
The peninsula includes numerous public parks, lighthouses, orchards and scenic coastal drives; boating, fishing and shoreline recreation are core visitor activities. Several islands lie off its tip and ferry links serve island communities.
Geologically and geographically the peninsula projects northeast from mainland Wisconsin, forming the western shore of Green Bay. It is roughly several dozen miles long and is reached by road via the city of Sturgeon Bay and other entry points from the mainland.
The peninsula’s mix of maritime scenery, public parks and small towns makes it a prominent regional destination for outdoor recreation and seasonal tourism.
- Best time to visit: Best visited in late spring to early fall when ferry services and many seasonal attractions are operating and weather is suitable for outdoor activities.
What to See #
- Parks and towns: A chain of state parks, county parks and shoreline towns along its length, including well-known public areas for camping and hiking.
- Offshore islands: Washington Island and a number of smaller islands off the tip that are reached by ferry and are part of the peninsula's recreational offering.
How to Get to Door Peninsula #
The peninsula is about 45-60 minutes north of Green Bay, Wisconsin. Drive via US‑41 to Sturgeon Bay, then follow WI‑42/WI‑57 south through the peninsula. Washington Island is reached by ferry from Northport (ferry operates seasonally). Public transit is limited; car recommended.
Tips for Visiting Door Peninsula #
- Start at Sturgeon Bay or Fish Creek for services and shorter drives; many scenic overlooks and state parks are clustered along the route.
- Drive Highway 42/57 along the peninsula's spine and detour onto County A for quieter coastal views - bring a map, cellular service can be patchy in bayside villages.
- Visit in late October for the leaf colour show - foliage season is dramatic and the water looks cold, bright and indigo.
Best Time to Visit Door Peninsula #
Late spring through fall for outdoor activities; autumn for foliage and fewer crowds.
Weather & Climate near Door Peninsula #
Door Peninsula's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with warm summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -13°C to 26°C. Moderate rainfall (784 mm/year).
January
January is the coldest month with highs of -4°C and lows of -13°C. Moderate rainfall (39 mm).
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February
February is freezing with highs of -2°C and lows of -11°C. Moderate rainfall (30 mm).
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March
March is freezing with highs of 3°C and lows of -6°C. Moderate rainfall (50 mm).
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April
April is cold with highs of 10°C and lows of 0°C. Moderate rainfall (71 mm).
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May
May is cool with highs of 17°C and lows of 6°C. Regular rainfall (80 mm).
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June
June is cool with highs of 23°C and lows of 11°C. Regular rainfall (83 mm).
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July
July is the warmest month with highs of 26°C and lows of 14°C. Regular rainfall (82 mm).
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August
August is mild with highs of 25°C and lows of 14°C. Regular rainfall (86 mm).
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September
September is cool with highs of 20°C and lows of 10°C. The wettest month with 91 mm of rain.
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October
October is cold with highs of 14°C and lows of 5°C. Moderate rainfall (64 mm).
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November
November is cold with highs of 6°C and lows of -1°C. Moderate rainfall (62 mm).
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December
December is freezing with highs of 0°C and lows of -8°C. Moderate rainfall (46 mm).
