Summer

Discover Nantucket Island in Summer

June, July, and August bring the island fully to life — golden beaches, harbor breezes, and long, sun-filled days.

Explore Summer on Nantucket

Summer on Nantucket Island is when this charming New England destination truly comes alive. From world class beaches and island festivals to vibrant nightlife and outdoor adventures, June through August offers the full Nantucket experience.

This is the island’s busiest season, and for good reason. Long sunny days, warm ocean breezes, and a packed calendar of events make summer unforgettable. Visitors can spend mornings exploring town, afternoons at the beach, and evenings enjoying live music, theater, and waterfront dining.

Advance planning is essential in summer. Ferry and flight reservations should be made early, and restaurant reservations are best secured well ahead of time to avoid missing out on popular spots.

Warmest ocean swimming of the year
Longest days and latest sunsets of any Nantucket season
Full calendar of regattas, concerts, and island festivals
Extended restaurant, shop, and gallery hours island-wide

On Island

Things to Do on Nantucket in Summer

Nantucket's Beaches, Made for Summer

With more than 80 miles of coastline, Nantucket offers a beach for every kind of summer day — calm, family-friendly stretches close to town, classic Atlantic surf beaches, and quieter spots known for their sunsets. Whatever you're looking for, summer is when the island's beaches are at their absolute best.

Explore Beaches

The Island in Bloom

Summer is when Nantucket's natural beauty is on full display, from the rose-covered cottages of Siasconset to the hydrangeas that line front yards and stone walls across the island. Downtown, window boxes overflow with color outside every shop, while the island's parks, gardens, and trails invite a slower, more scenic pace of exploring.

Explore Things to do

Sailing, Boating & Harbor Life

Nantucket Harbor comes alive in summer with sailboats, day cruises, and charter fishing trips heading out each morning — the calmest seas and best conditions of the year on the water.

Explore Boating & Fishing

Summer is Nantucket’s busiest travel season, and both ferries and flights run at their fullest schedules of the year. Booking ahead — especially for car reservations and holiday weekends — makes all the difference.

Visitors typically reach Nantucket by ferry from Cape Cod or by flying directly into Nantucket Memorial Airport.

By Boat

Summer runs the fullest ferry schedule of the year. High-speed ferries make the crossing in about an hour, while car ferries take roughly two hours and fifteen minutes. Car space is the tightest resource in summer — July and August reservations book out months ahead, so lock one in early or plan to get around by bike, taxi, or shuttle instead.

By Air

Flights run at their highest frequency of the year, with direct daily service from Boston, New York, and other Northeast cities, plus added seasonal routes and heavier private traffic. Weekends around the Fourth of July and mid-August are the busiest at Nantucket Memorial Airport, so book early and build in a little buffer.

Travel Tips for Summer

Book ferries and flights early — summer sells out months ahead
Most inns require a 3-night minimum during peak weeks
Go car-free — bikes, taxis, and the shuttle cover most trips

Ship's Log

Nantucket Summer Weather: What to Expect

Overall Summer Weather Range: Mid 60s°F to Low 80s°F

June

Average highs70–75°F
Eveningslow 60s°F
Ocean60–65°F

Warming fast — refreshing rather than warm.

July

Average highs77–81°F
Eveningsmid 60s°F
Ocean68–72°F

Nantucket's warmest month, most swimmable water so far.

August

Average highs77–81°F
Eveningsmid 60s°F
Ocean70–73°F

Peak swimming water of the entire year.

Nantucket's position well out in the Atlantic keeps summer temperatures noticeably milder than the mainland, with sea breezes tempering the heat even on the warmest days. Fog is possible, especially in June, but generally burns off by midday.