Door Peninsula in July

May through October offers the best weather, but each season brings different crowds and prices. Summer means peak everything — highest prices, biggest crowds, warmest water for swimming. July and August see temperatures in the 70s and 80s, but expect traffic jams and hour-long waits at popular restaurants. Fall delivers the peninsula's most beautiful season with spectacular foliage, harvest festivals, and comfortable temperatures in the 60s. September and early October offer the sweet spot of good weather with fewer crowds. Late May brings cherry blossoms and spring wildflowers without summer's chaos. Winter transforms the peninsula into a quiet wonderland perfect for cross-country skiing and ice fishing, but many restaurants and attractions close from November through April. Spring arrives late — April can still feel like winter, so wait until May for reliable outdoor weather.