U.S. Virgin Islands Weather

Planning a trip to the U.S. Virgin Islands? You might be wondering what kind of weather to expect — and when to go for the best experience. The good news? The USVI stays warm and sunny year-round, making it a reliable Caribbean escape in any season. Still, knowing how temperatures, rainfall and travel patterns shift month to month can help you plan, pack smart and make the most of your time in paradise.

Here’s how the weather breaks down by season — and what it means for your travel plans.

When is the Best Time to Visit USVI?

The U.S. Virgin Islands enjoy warm, sunny weather year-round. The average winter temperature is 77ºF (25ºC), and the average summer temperature is 82ºF (28ºC).

Tip: The Caribbean sun is intense. Cotton clothes are the best choice for staying cool. Remember to drink plenty of water and to wear non-nano mineral sunscreen (learn more here).

Here’s a breakdown of what you can likely expect for each season throughout the year (according to 2006–2020 Charlotte Amalie NOAA data):

Winter (December – February): Dry Season and Peak Travel

Typical temps: 85°F (29°C) highs, 74°F (22°C) lows
Conditions: Dry, breezy and mild
Why go: Clear skies and low humidity make winter the most popular time to visit. Expect bustling beaches and hotels, especially around the holidays.
Tip: Book early if you’re planning a winter escape so you can stay at your favorite hotel.

Spring (March – May): Ideal Balance of Weather and Crowds

Typical temps: 86°F (30°C) highs, 76°F (24°C) lows
Conditions: Mostly dry with the occasional shower
Why go: Spring offers steady sunshine with fewer crowds than winter. It’s a sweet spot for travelers who want great weather without peak-season rates.
Tip: April and May are ideal for hiking, snorkeling and scenic drives with lush island landscapes.

Summer (June – August): Hot Days and Great Deals

Avg. Temps: 90°F (32°C) highs, 80°F (27°C) lows
Conditions: Warmer and more humid, with scattered tropical showers
Why go: Summer kicks off the low season, meaning smaller crowds and better prices. It’s also festival season, with lively local events and warm Caribbean nights.
Tip: Keep an eye on the weather — hurricane season starts in June, though storms are more likely later in the season.

Fall (September – November): Quiet Season With Low Prices

Avg. Temps: 88°F (31°C) highs, 78°F (26°C) lows
Conditions: Wettest period of the year, but rain often comes in short bursts
Why go: September and October are the quietest months to visit, with the best hotel and flight deals. November sees a return to drier weather and more activity.
Tip: If traveling in fall, consider flexible plans and travel insurance due to storm potential.

What Kind of Sunscreen Can I Use in USVI?

Please use only mineral sunscreen while in the U.S. Virgin Islands — it’s the law! Help preserve the stunning reefs, marine animals and beaches so that you and your loved ones can enjoy them for years to come. Avoid sunscreens that contain the prohibited “Toxic 3 Os” of oxybenzone, octinoxate and octocrylene. Use only non-nano mineral sunscreen containing zinc oxide and titanium dioxide, as these sunscreen ingredients are deemed safe and effective by the FDA. There are plenty of options to choose from — find a selection of recommended non-nano mineral-based sunscreen lines here. You can also wear rash guards, hats and sunglasses for some extra protection.

USVI Weather FAQs

Is hurricane season a bad time to visit the U.S. Virgin Islands?

Hurricane season technically runs from June through November in USVI. September and October carry the highest risk — though many days are still sunny. If you travel during these two months, look for flexible cancellation policies and consider travel insurance. The upside? Fewer crowds and lower rates.
What’s the humidity like in the U.S. Virgin Islands?

Humidity levels stay relatively high throughout the year (averaging around 74–81%), especially in the summer and fall. It’s usually manageable thanks to coastal breezes. Wearing light, breathable fabrics like cotton or linen can help you stay comfortable during outdoor activities.
Do trade winds affect the weather in USVI?

Yes, the trade winds are a major reason why the weather feels pleasant year-round. These breezes keep temperatures steady and help regulate humidity. They also make certain seasons — especially winter — ideal for sailing and wind sports like kiteboarding.
Are there any months that are better for snorkeling or diving?

Winter tends to have the clearest underwater visibility, with calm seas and fewer storms. That said, conditions are good for snorkeling and diving year-round, especially in sheltered areas like Trunk Bay, Coki Point and Buck Island.
What should I pack for the weather in USVI?

In addition to swimwear and sandals, pack lightweight layers, a wide-brimmed hat, reef-safe sunscreen and a light rain jacket. For hikers or explorers, closed-toe shoes and insect repellent come in handy, especially after rain.
How does the weather in St. Thomas, St. John and St. Croix compare?

All three islands share a similar climate, but St. Croix — being farther south — can be slightly drier and warmer. St. John tends to feel slightly cooler due to its hilly terrain and larger areas of natural vegetation. Weather differences are minimal but may affect hiking conditions or outdoor excursions.

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