When to visit
Saint Thomas?

Discover the best time of year, based on historical climate, temperature, and precipitation.

Saint Thomas
Saint Thomas Island · U.S. Virgin Islands

The best weather in Saint Thomas is from January, February, March.consistent weather climate

Climate score
September
73

Excellent climate

Hot & rainy

Temperature
25–27°C
Hot nights — A/C advised
Feels like
27–31°C
Muggy
Precipitation
131mm
Moderate rain · 17 days
Sunshine
10.9h
Partly cloudy
Humidity (%)
79%
Muggy
Annual Climate Analysis
Temperature, Rain & Feels Like
Rain
Actual Temp
Feels Like
10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
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Monthly Overview
Score828183818080767473747381
ClimatePleasantPleasantPleasantPleasantPleasantPleasantHot & dryHot & rainyHot & rainyHot & rainyHumidPleasant
Temperature23–25°C23–24°C23–24°C23–25°C24–26°C25–26°C25–27°C25–27°C25–27°C25–27°C25–26°C24–25°C
Feels like23–25°C22–25°C22–25°C23–27°C25–28°C26–29°C26–29°C27–30°C27–31°C27–30°C25–28°C24–26°C
Precipitation33mm
13 days
42mm
13 days
28mm
11 days
50mm
13 days
66mm
13 days
56mm
13 days
87mm
16 days
111mm
17 days
131mm
17 days
131mm
19 days
133mm
20 days
47mm
15 days
Sunshine10.9h
☀︎ 98%
10.8h
☀︎ 94%
11.2h
☀︎ 93%
11.8h
☀︎ 94%
11.8h
☀︎ 91%
12.1h
☀︎ 92%
11.9h
☀︎ 91%
11.5h
☀︎ 90%
10.9h
☀︎ 89%
10.5h
☀︎ 89%
9.8h
☀︎ 87%
10.6h
☀︎ 96%
WindE · 30 km/hE · 32 km/hE · 31 km/hE · 29 km/hE · 29 km/hE · 31 km/hE · 33 km/hE · 31 km/hE · 28 km/hE · 26 km/hE · 28 km/hE · 32 km/h
Humidity (%)75%75%75%76%79%79%79%79%79%78%77%75%
Day length11.2h11.6h12.0h12.6h13.0h13.2h13.1h12.7h12.2h11.7h11.3h11.0h
Events & Festivals
JanFebMarAprMayJunJulAugSepOctNovDec
USVI Carnival
Rolex St. Thomas International Regatta
Events & Festivals
  • USVI Carnivalfestival
    April, May· 5k+ visitors

    St. Thomas fills with parades, steel pan music and colorful costumes during this weeks-long celebration in late spring.…

  • Rolex St. Thomas International Regattasports
    March· Local event

    Sailors from around the world race in the steady winds off St. Thomas during this late-March regatta. Days are warm and…

The story of the seasons in Saint Thomas

While standard travel wisdom crowns March for its pristine weather, April is the island's true sweet spot: you sacrifice virtually nothing in sunshine, escape the winter crush, and catch the island at its vibrant cultural peak.

Saint Thomas rises abruptly out of the Caribbean Sea as a spine of volcanic green, culminating at Crown Mountain. Known historically as Rock City, this thirty-two-square-mile island packs drama into every elevation change, with roads that corkscrew down steep hillsides toward sweeping crescent bays and the deep natural harbor of Charlotte Amalie. Most visitors arrive expecting a sleepy tropical outpost, but St. Thomas has always been an energetic commercial hub, a place where cruise liners, yachts, and hillside neighborhoods jostle together. Because of that momentum, timing your arrival determines whether you encounter an overburdened cruise port or an inviting island where clear water and trade winds set a generous, unhurried pace.

The Sweet Spot: April's Clear Trade and the Soul of Carnival

If you look purely at meteorology, March edges out April by a whisker. But pure meteorology ignores how a destination breathes. By April, the peak winter crowd has packed its bags, the cruise traffic thins out, and the island exhales. The trade-off is negligible: daytime highs linger around 25 °C with apparent warmth settling comfortably around 27 °C, and the skies remain generous and bright with nearly twelve hours of sunshine a day. The few showers that sweep through are brief tropical passing clouds, barely registering on the pavement before burning away.

What makes April unassailable is the shift in atmosphere. You can drive down the steep, switchbacked descent to Magens Bay in the morning without lining up behind tour shuttles, staking out calm, turquoise water framed by green headlands in relative solitude. Over in Charlotte Amalie, the stone stairways and historic Danish alleys become walkable again, spared the mid-winter wall-to-wall foot traffic.

Late April also marks the arrival of the USVI Carnival, spilling into May with the resonance of steel pans, costumed parades, and food fairs that take over the town. Rather than an island catering purely to transient visitors, St. Thomas turns inward to celebrate itself. May warms up slightly and introduces a touch more humidity, but the cultural richness and lingering ease make this late spring window the most rewarding time to be on the island.

Winter and the Regatta: Crisp Days, Cool Nights, and Dense Harbors

December through March brings the driest, most predictable weather of the year. Air temperatures settle near 24 °C to 25 °C, and steady northeasterly breezes sweep over the ridges, keeping humidity at bay and outdoor comfort high. For anyone fleeing freezing northern winters, this climate feels like perfection. The lookouts, such as Drake's Seat, offer postcard views across the blue expanse toward neighboring cays under crisp, unclouded skies.

The cost of that perfection is density. December and January see Charlotte Amalie operating at full throttle, with harbor docks lined with mega-ships and the roads heading east toward Red Hook choking with rental jeeps and safari taxis. March sustains that high winter energy, capped by the Rolex St. Thomas International Regatta, when the waters off the southern cays fill with competitive spinnakers and sailors from around the globe gather at the island's marinas.

March gives you the driest air and clearest seas of any month on the calendar. If your priority is competitive sailing, deep-sea charters, or nights that never feel sticky, March delivers. Just be prepared to share the sand at popular stretches like Coki Beach and book your logistics well ahead of time.

The Summer Rhythm: Simmering Heat and Sweeping Views

Summer in St. Thomas settles into a slow, warm groove. Daytime temperatures push toward 27 °C, though the mugginess makes it feel closer to 30 °C by August. June offers a brief lull in visitor arrivals, making it an appealing sleeper month for travelers who prefer lazy, sun-drenched beach days where the water is like bathwater and the trade winds keep the afternoons manageable.

By July and August, regional vacationers arrive, pushing activity back up. Rain becomes more frequent, arriving not as constant gray drizzles but as sudden, heavy midday downpours that crack over Crown Mountain and sweep across the coastline. These showers clear the air, dropping the temperature for an hour before the sunshine returns.

If you visit during midsummer, adapt your schedule to the climate. Spend the mornings swimming or snorkeling the reefs before the midday heat mounts, retreat during the early afternoon storms, and emerge for sundown when the harbor lights of Charlotte Amalie begin to twinkle against the twilight hills.

The Autumn Anomaly: The Wettest Month Meets the Busiest Rush

September and October represent the true low season. They bring the heaviest rains and the warmest, stickiest air of the year, with daytime apparent temperatures hovering above 30 °C and tropical moisture lingering over the ridges. Many smaller charter outfits and local operators use this quiet window for maintenance, leaving the beaches empty and the streets remarkably hushed.

Then comes November, which presents the most striking contradiction on the Virgin Islands calendar. Statistically, November is the single wettest month of the year, drenched with substantial tropical downpours and low cloud ceilings. Yet November also sees the island's annual crowd index hit its absolute ceiling, driven by the holiday rush and the dramatic reopening of the cruise calendar.

Visiting in November means navigating the island at its most congested while contending with the highest likelihood of washed-out plans. If you must travel around the late autumn holidays, plan for indoor alternatives in Charlotte Amalie when heavy squalls roll through, and give yourself ample driving time along the slick mountain switchbacks.

Frequently asked questions

What is the best time to visit Saint Thomas?

The best time to visit Saint Thomas is April, June, October, September, March, January, February, May, July, August, December, November, with temperatures between 23 °C and 27 °C. The best month is April. April is low season.

What is the weather like in Saint Thomas?

Saint Thomas has a Tropical climate with an overall score of 7.8/10. Annual temperatures range from 23 °C to 27 °C.

What is the hottest month in Saint Thomas?

The hottest month in Saint Thomas is July, with average highs of 27 °C and lows of 25 °C.

What is the rainiest month in Saint Thomas?

The rainiest month in Saint Thomas is November, with an average of 133 mm of precipitation.