STT · Packing Guide
The Packing List
What to Bring, What to Skip
What to pack for boat days, beach days, hikes and a few things you should leave at home.
Best Packing Season
Dec – Apr (Dry)
Average Temp
78°F – 88°F
Rain Gear Needed
Jun – Nov
Electrical Outlets
US Standard
St. Thomas doesn't require a complicated packing list — it's still the U.S., so you're not chasing plug adapters or currency exchange. But there are a handful of island-specific things that make the difference between a smooth trip and a Walgreens run on day two. Here's everything, broken down by what you're actually doing that day.
01 · What the Weather Actually Does
St. Thomas runs warm and humid year-round — there's no real "cold" season, just a dry stretch (December–April) and a wetter, more hurricane-prone stretch (June–November). Afternoon showers can pop up fast even in dry season, so rain isn't a reason to overpack, it's a reason to pack smart. If you're planning a visit during the winter months, you may want to pack a light jacket for those cooler breezy evenings.
Local tip: A packable rain jacket beats an umbrella almost every time here — island wind turns umbrellas inside out on the regular.
02 · Travel Documents
This is the one category where forgetting something can actually end your trip before it starts — and it's easy to assume you don't need anything since St. Thomas is a U.S. territory.
A REAL ID-compliant license (or passport)
Flights to St. Thomas are domestic, but TSA still requires REAL ID Act–compliant identification at the checkpoint. If your driver's license doesn't have the star marking in the corner, a passport works instead — but a standard, non-compliant state ID will get you held up at security.
A passport for any BVI day trip
The British Virgin Islands are a separate country, even though they're visible from St. Thomas and only a short ferry or boat ride away. A valid passport is required to enter — this applies to every member of your group, including kids, and it applies even for a same-day trip with no overnight stay.
Don't assume: Because St. Thomas and the BVI are so close and easy to hop between on a boat day, it's the most common document mistake visitors make. If a BVI excursion is even a possibility on your trip, pack the passport — not just the ID.
03 · The Non-Negotiables
Pack these no matter what kind of trip you're taking:
Reef-safe sunscreen
The USVI banned the sale of sunscreens containing oxybenzone and octinoxate back in 2020 to protect the coral reefs — so if you buy sunscreen once you land, your options are limited and pricier. Bring reef-safe, mineral-based sunscreen (zinc oxide or titanium dioxide) from home.
A dry bag or waterproof phone pouch
Between boat spray, sudden rain, and beach sand, this is the single most useful thing you can pack. Doesn't need to be expensive — just sealed.
👉 Shop waterproof phone pouches →
Bug spray with picaridin
Mosquitoes and no-see-ums show up most around dusk and after rain, especially near vegetation. Reapply after swimming.
A quick-dry towel
While most villas and resorts provide beach towels, regular towels stay damp and musty in island humidity. A compact microfiber towel dries fast, doesn't bring the whole beach home in your bag, and takes up a fraction of the suitcase space.
Small bills
Taxi fares are per-person and drivers appreciate exact change or close to it. Tipping for boat crews, tour guides, and RedCaps at the airport ($5/bag + $2–5 tip) also runs smoother with cash on hand.
04 · Boat Day Bag
If a boat charter or catamaran day is on the itinerary, pack light and pack waterproof:
- Dry bag (see above — this is where it earns its keep)
- Snacks! Especially if you're traveling with kids. Long days swimming make for hungry kiddos.
- Non-marking, grippy water shoes or sandals — most boats ask guests to remove hard-soled shoes anyway
- Rash guard or swim shirt for sun protection during long stretches on deck
- A hat - just make sure you hold on to it when the boat starts moving. Many captains will not turn around to rescue a hat overboard.
- Snorkel mask if you have your own — most operators provide gear, but a mask you know fits well is worth the space
- Motion sickness tablets or wristbands if you're prone to seasickness — St. Thomas boat days often include open-water crossings
👉 Shop motion sickness bands →
05 · Beach Day Bag
- Beach mat or sand-proof towel — regular beach towels drag half the beach home with you
- Dry bag or sand-proof beach bag. The dry bag will be your go-to accessory during your whole vacation
- Reusable water bottle — most beach spots don't have easy water refill access, so bring it full
- Lightweight cover-up or sarong for the walk to lunch after
- Flip-flops or water sandals — St. Thomas beach sand and rocky entry points aren't always barefoot-friendly
- Snorkel gear if visiting reef spots like Coki Point — rentals are available, but owning your own mask means you know it doesn't leak
- Snacks - some beaches have concessions, but many do not, and if there are kids in your group, you'll want to have a few of their favorite snacks on hand.
Local tip: Magens Bay and Sapphire Beach both have vendors and facilities, so you can pack lighter for those than for more remote spots.
06 · Hiking & Trail Gear
Planning a St. John National Park hike or one of St. Thomas's own trails? Pack differently than for the beach:
- Closed-toe hiking shoes or trail sneakers — flip-flops don't hold up on rocky, root-covered trails. A bloody toe on a long hike is no fun.
- A daypack with a hydration bladder or bottle sleeve or a reusable water bottle
- A dry bag for your phone and camera — trails often end at the water
- Lightweight, moisture-wicking layers — humidity makes cotton miserable fast. Wear your swim suit under if you plan on taking a dip at the end of the trail.
- A hat and extra sunscreen — tree cover is inconsistent on most VI trails
07 · Camping Gear
If Cinnamon Bay Campground on St. John is part of the plan, a few extras matter:
- Lightweight tent or confirm your eco-tent/cottage rental includes bedding
- A cooler or soft-sided cooler bag for perishables — island grocery runs take planning
- A bug net or extra-strength repellent for evenings
- A headlamp or lantern — campground lighting is minimal by design
- Cash for the camp store and any gear rentals on-site
08 · What to Leave at Home
Skip it: Non-reef-safe sunscreen (it's not sold locally and can't legally be used in the water here), heavy cotton everything (it never fully dries in this humidity), umbrellas (island wind will end them), and a full suitcase of "just in case" shoes — you'll live in sandals and one pair of sneakers.
The Quick-Print Checklist
Essentials
☐ REAL ID or passport
☐ Passport (if any BVI day trip)
☐ Reef-safe sunscreen
☐ Dry bag / waterproof pouch
☐ Bug spray
☐ Quick-dry towel
☐ Reusable water bottle
☐ Small bills for cash
Activity-Specific
☐ Water shoes (boat day)
☐ Rash guard (boat day)
☐ Beach mat (beach day)
☐ Hiking shoes (trail day)
☐ Headlamp (camping)
☐ Cooler bag (camping)
Sources
National Park Service — nps.gov
Virgin Islands Department of Planning and Natural Resources — dpnr.vi.gov
NOAA National Weather Service — weather.gov
