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Family Packing List for Cape Cod
Cape Cod with kids is the New England summer trip where the water is colder than the southern beaches you might be used to (Atlantic ocean temps peak around 70°F in August), the ferries to Nantucket and Martha's Vineyard book out, and the air smells like saltwater pine.
Updated April 2026
Quick answer
For a 5-day Cape Cod family trip in summer, expect 75–82°F days, 60–70°F nights, and ocean temps that peak around 21°C / 70°F in August. Pack two swimsuits per person, rash guards (the sun is real but the wind makes you forget), a fleece or sweatshirt for every evening, broken-in walking shoes for towns and trails, and bug spray for marsh and dune-grass areas. Book Steamship Authority ferries to Nantucket / Martha's Vineyard 6–8 weeks ahead in summer.
At a glance
- Plug type:
- A / B (120V, 60Hz)
- Currency:
- USD
- Aug ocean temp:
- ~21°C / 70°F (cold by Caribbean standards)
- Rental cycle:
- Saturday-to-Saturday standard in summer
- Ferry to Nantucket:
- 2h 15min standard / 1h fast (Steamship Authority)
- Ferry to Martha's Vineyard:
- 45 min from Woods Hole
Sample checklist preview
5 days · 2 adults · 2 childrenWhat the generator starts with for this trip type — you can edit everything in the next step.
- Swimsuits×1
- Jacket×1
- Coats×1
- Sweaters×1
- Gloves×1
- Dress Shirts×1
- Dresses×1
- T-shirts×2
- Pants×1
- Shorts×2
- Socks×3
- Underwear×3
The full generator adjusts these for weather, laundry, travelers, and destination.
What actually matters on Cape Cod
- •Atlantic ocean is cold by Florida or Caribbean standards. August water peaks around 21°C / 70°F; June is around 16°C / 60°F. Younger kids handle it better than adults expect, but rash guards and a sense of humor about cold-water entry both help.
- •Wind shifts everything. Cape beaches face the open Atlantic — onshore wind is constant. Pack a wind layer per family member; even hot days feel cool with strong sea breeze.
- •A fleece or sweatshirt every evening is non-negotiable. Cape evenings reliably drop into the 60s°F even after 80°F days.
- •Steamship Authority ferries to Nantucket (2h 15min standard, 1h fast) and Martha's Vineyard (45 min) book out in summer. Reserve passenger and especially car spaces 6–8 weeks ahead. Walk-on tickets are easier but limit your day trip flexibility.
- •Most Cape rentals run Saturday-to-Saturday in summer. BYO sheets and towels at many properties — verify before packing.
- •Bike the Cape Cod Rail Trail. 25 miles of paved trail through Dennis to Wellfleet — flat, family-friendly. Bike rentals available at multiple trail towns.
- •Tick risk in dune grass and wooded areas. Permethrin-treated clothing or DEET works; tick checks at the end of each day matter.
- •Cape Cod casual is the dress code. One smart-casual outfit per adult covers the nicer dinners; otherwise jeans, shorts, and t-shirts.
- •Lobster rolls are the trip food. Family-friendly lobster shacks (Arnold's in Eastham, Mac's in Wellfleet, The Lobster Pot in Provincetown) take walk-ups but lines run long at peak.
Typical weather by month
| Month | Avg high | Avg low | Rainy days |
|---|---|---|---|
| Jan | 3°C / 38°F | -4°C / 25°F | 11 |
| Feb | 4°C / 39°F | -4°C / 25°F | 11 |
| Mar | 7°C / 45°F | 0°C / 32°F | 11 |
| Apr | 12°C / 54°F | 4°C / 40°F | 11 |
| May | 17°C / 63°F | 9°C / 49°F | 11 |
| Jun | 23°C / 73°F | 14°C / 58°F | 9 |
| Jul | 26°C / 79°F | 17°C / 63°F | 8 |
| Aug | 26°C / 78°F | 17°C / 63°F | 8 |
| Sep | 22°C / 72°F | 14°C / 58°F | 9 |
| Oct | 17°C / 62°F | 8°C / 47°F | 9 |
| Nov | 11°C / 52°F | 4°C / 39°F | 11 |
| Dec | 6°C / 43°F | -1°C / 30°F | 12 |
Typical monthly averages for planning. Check a forecast closer to your trip.
Seasonal things to plan around
- Jul–AugPeak crowds. Bridge backups onto the Cape can run 3+ hours on Friday afternoons / Sunday returns. Plan ferry and rental schedules around traffic.
- Year-roundTick risk in grass and wooded areas. Tick checks daily; permethrin-treated clothing for hike-heavy days.
- Jun–NovAtlantic hurricane season — Cape gets occasional impacts (Henri 2021). Travel insurance worth considering.
- JunGreenheads (biting flies) on some salt-marsh beaches; peak July. Local lore is real.
Common Cape Cod packing mistakes
- •Packing for "warm beach water." Cape beaches feel like Maine, not Florida.
- •No fleece for evening. Even August nights drop to the 60s°F; kids in shorts and t-shirts are cold.
- •Booking ferry tickets last-minute in summer. Book 6–8 weeks ahead, especially with cars.
- •Skipping bug spray. Marsh-side rentals and dune grass walks have ticks and mosquitoes.
- •Forgetting a layer for the ferry ride. Even fast ferries in summer can feel cold on the open ocean.
- •Not bringing rental house linens / towels if required. Many Cape rentals are BYO.
Notes by where you're traveling from
From the US
- •Drive — Boston is 1.5 hours, NYC is 4.5 hours. Friday and Sunday traffic on the bridges is real.
- •Fly into Boston (BOS) or Providence (PVD). Cape Cod has a small regional airport (HYA) but limited service.
- •Most family rentals run Sat-Sat in summer; book 6–12 months ahead for prime weeks.
- •A car is essential — public transit on the Cape is light.
From the UK
- •Flight: 7 hours direct from London Heathrow to Boston, then 1.5-hour drive.
- •ESTA required: $40.27 (~£32) per person, valid 2 years.
- •Adapter: Type G → A/B.
- •Pair with Boston for a more rounded New England trip.
From Canada
- •Flight: 1.5 hours direct from Toronto/Montreal to Boston, then 1.5-hour drive.
- •No ESTA required for Canadian passport holders.
- •Currency: USD.
From Australia
- •Flight: 22+ hours typically with one stop (LAX or via Asia).
- •ESTA required: $40.27 (~AU$60), valid 2 years.
- •Adapter: Type I → A/B.
Venue and attraction rules
- Cape Cod National Seashore
- 40 miles of protected Atlantic coastline. Free beach access in some areas, $25/day at others. Best beaches: Nauset, Coast Guard, Marconi, Race Point.
- Steamship Authority ferry to Nantucket
- 2h 15min standard ferry from Hyannis, $50–80 round-trip per adult. Fast ferry 1h, more expensive. Book 6–8 weeks ahead in summer.
- Steamship Authority ferry to Martha's Vineyard
- 45 min from Woods Hole, $20 round-trip walk-on. Cars need months-ahead reservations in summer.
- Cape Cod Rail Trail
- 25 miles of paved bike trail Dennis to Wellfleet. Family-friendly. Bike rentals at multiple trail towns.
- Provincetown
- Tip of the Cape; LGBTQ+ friendly community. Whale-watching tours from MacMillan Pier are family-favorite (Apr–Oct).
- Hyannis Harbor / Kennedy Compound area
- JFK Hyannis Museum is family-friendly; harbor cruises depart from here.
FAQ
Is the water really cold for swimming?
By Florida or Caribbean standards, yes. August Atlantic ocean temperatures on the Cape peak around 21°C / 70°F. Bay-side beaches (Cape Cod Bay) are usually 5°F warmer than ocean-side beaches (Atlantic). Younger kids adjust quickly; rash guards help with sun + chill on long beach days.
Cape Cod, Nantucket, or Martha's Vineyard?
Most first-time families stay on Cape Cod and day-trip to one or both islands. Cape Cod has more rental options, restaurants, and family attractions; the islands are more boutique and pricey. Martha's Vineyard is bigger and busier; Nantucket is smaller and more concentrated. Both make great day trips by ferry.
When is the best time for a family trip?
Late June through Labor Day is peak — warm enough for swimming, all attractions open, biggest crowds. September is the local favorite — water still warm, kids back in school so crowds drop, prices ease. Early June and late September have lower prices but cooler water.
Should we book a ferry with our car or just walk on?
Walk on if you can. Car ferry to either island books out months ahead in summer and adds significant cost ($200+/round-trip). Walking on is cheaper and easier; use the islands' bus systems, bike rentals, or walking. If your kids need a car-based island trip, book the ferry the day reservations open.
Resort, hotel, or rental house?
Rental houses dominate Cape Cod summer trips — kitchens, multiple bedrooms, washer/dryer, and budget-friendly per person for families. Hotels and motels for shorter stays. Few all-inclusive resorts. Most family rentals are Sat-Sat in summer; book 6–12 months ahead.
Do we need ESTA from the UK / Canada / Australia?
UK and Australia: yes — ESTA at $40.27 per person, valid 2 years. Canada: no ESTA, passport-only entry.
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