5 Estate Bakkeroe, St. Thomas, St. Thomas, 00802, VI
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The Westin St. Thomas Beach Resort & Spa: Month-by-Month Weather Guide

Trying to understand the weather before booking The Westin St. Thomas Beach Resort & Spa? This in-depth guide breaks down St. Thomas weather month by month, including dry-season conditions, humidity, rainfall, hurricane-season timing, and the warm tropical temperatures that shape beach days—so you can pack and plan with realistic expectations. Whether you’re visiting for pools, Morningstar Beach access, watersports, a wedding, or a family vacation, this breakdown shows which months are driest, rainiest, warmest, and easiest to plan around.

Planning your stay guide

Wondering what the weather is like by month at The Westin St. Thomas Beach Resort & Spa? This guide breaks down what each month typically feels like on St. Thomas in the U.S. Virgin Islands—including average temperatures in °F, humidity, rain chances, and what that means for beach days, snorkeling, family activities, and relaxing at this all-ages beachfront resort.

Quick takeaway:
The Westin St. Thomas enjoys warm, tropical Caribbean weather year-round. Most days land roughly between 80–88°F for daytime highs. The most consistently comfortable stretch is usually December–April (often around 80–84°F highs with lower humidity and minimal rain), while August–October tends to feel hotter and more humid (often around 86–88°F) with higher rain risk and potential tropical weather.

St. Thomas note: Trade winds help cool things down on most days, and the resort's beachfront location at Frenchman's Reef offers stunning breezes—especially during the drier winter months.
Most comfortable highs: ~80–84°F (Dec–Apr) Hottest feel: ~86–88°F (Aug–Oct) Hurricane season: Jun–Nov (peak Aug–Oct) Sweet spot value: May & Nov (often)

Use the month-by-month cards below to choose the best timing for your trip style: sunny beach weather, family beach time, snorkeling and water sports, or better rates—without guessing.

The Westin St. Thomas Weather by Month (Quick Overview)

This quick chart helps you compare months at a glance for The Westin St. Thomas Beach Resort & Spa in the U.S. Virgin Islands. Use it to plan for sunshine, humidity, and the easiest conditions for beach days, snorkeling, family time, and island exploration.

Month Typical temps (°F) Rain & humidity Best for
Jan High ~80–83°F • Low ~72–75°F Lower humidity; generally drier Peak beach weather + family trips
Feb High ~80–83°F • Low ~72–75°F Dry season continues; comfortable Valentine's getaways + snorkeling
Mar High ~81–84°F • Low ~73–76°F Still relatively dry with trade winds Spring breaks + water sports
Apr High ~82–85°F • Low ~74–77°F Humidity starts to rise slightly Easter trips + outdoor exploring
May High ~83–86°F • Low ~76–79°F More humid; occasional showers Shoulder season value + warm water
Jun High ~85–87°F • Low ~77–80°F Humid; hurricane season begins Summer family trips (watch forecasts)
Jul High ~86–88°F • Low ~78–80°F Higher humidity; possible storms Pool + beach days with flexibility
Aug High ~86–88°F • Low ~78–80°F Peak hurricane season; more rain Deal hunters (flexible travel plans)
Sep High ~86–88°F • Low ~77–80°F Highest storm risk; humid Best rates (requires flexibility)
Oct High ~85–87°F • Low ~76–79°F Still rainy but improving late month Value seekers + improving weather
Nov High ~83–86°F • Low ~75–78°F Conditions improve; humidity drops Shoulder season sweet spot
Dec High ~81–84°F • Low ~73–76°F Dry season returns; comfortable Holiday trips + best overall weather

Month-by-Month Weather at The Westin St. Thomas

These month cards translate the weather into real planning for The Westin St. Thomas Beach Resort & Spa: what it feels like on-property, how to time snorkeling and beach activities, and what to expect for family fun and island exploration.

Weather by month

January

High ~80–83°F

Peak Caribbean weather—sunny days, pleasant trade winds, low humidity, and excellent conditions for beach time, snorkeling, and exploring St. Thomas.

Typical tempsHigh ~80–83°F • Low ~72–75°F
Beach + waterExcellent visibility for snorkeling
EveningsComfortable with gentle breezes
Best forPeak season trips + family vacations

Weather by month

February

High ~80–83°F

Continued dry season perfection—ideal for romantic getaways, beach walks at Frenchman's Reef, and dining at Luna Mar or Sugarfin with ocean views.

Typical tempsHigh ~80–83°F • Low ~72–75°F
HumidityComfortable tropical feel
Water conditionsClear and calm for swimming
Best forValentine's trips + couples escapes

Weather by month

March

High ~81–84°F

Warm, reliable weather perfect for spring break families—great for pools, water sports, kids' activities, and ferry trips to nearby islands.

Typical tempsHigh ~81–84°F • Low ~73–76°F
Trade windsHelp keep things comfortable
ExcursionsExcellent for island hopping
Best forSpring break + active families

Weather by month

April

High ~82–85°F

Still part of the favorable dry season—slightly warmer but comfortable, with excellent conditions for spa days, beach activities, and exploring Charlotte Amalie.

Typical tempsHigh ~82–85°F • Low ~74–77°F
Pool sceneWarm water, great for families
Rain chancesStill relatively low
Best forEaster trips + end of peak season

Weather by month

May

High ~83–86°F

Shoulder season arrives—warmer and more humid with occasional afternoon showers, but still pleasant with fewer crowds and better value.

Typical tempsHigh ~83–86°F • Low ~76–79°F
Rain patternBrief showers possible, often pass quickly
CrowdsLower than winter months
Best forValue seekers + warm Caribbean water

Weather by month

June

High ~85–87°F

Hurricane season officially begins, though major storms are less common early on. Hot and humid—perfect for pool days at the resort and indoor activities.

Typical tempsHigh ~85–87°F • Low ~77–80°F
HumidityHigher tropical feel
Hurricane watchSeason starts (peak is Aug–Oct)
Best forSummer trips with flexible plans

Weather by month

July

High ~86–88°F

Hot summer conditions with higher humidity—great for resort-based family fun including pools, Frenchman's Roast coffee breaks, and spa treatments.

Typical tempsHigh ~86–88°F • Low ~78–80°F
Rain chancesAfternoon storms possible
Best timingMorning beach + pool time ideal
Best forFamily summer vacations + pool focus

Weather by month

August

High ~86–88°F

Peak hurricane season—warm, humid, and higher storm risk. Best for flexible travelers who can adjust plans and enjoy excellent rates when weather cooperates.

Typical tempsHigh ~86–88°F • Low ~78–80°F
Storm riskHigher (monitor tropical forecasts)
Travel tipTravel insurance recommended
Best forDeal hunters with flexibility

Weather by month

September

High ~86–88°F

Historically the stormiest month in the Caribbean—lowest crowds and best rates, but requires maximum flexibility and travel insurance for weather changes.

Typical tempsHigh ~86–88°F • Low ~77–80°F
Hurricane seasonPeak month for tropical activity
Resort perksGreat indoor dining + spa time
Best forBudget travelers (high flexibility needed)

Weather by month

October

High ~85–87°F

Still warm and humid with storm potential, but conditions often improve late month as hurricane season winds down—good value with improving odds.

Typical tempsHigh ~85–87°F • Low ~76–79°F
Weather trendImproving toward month end
RatesStrong value opportunities
Best forLate-month trips + deal seekers

Weather by month

November

High ~83–86°F

Hurricane season officially ends November 30—humidity drops, conditions improve dramatically, and it's one of the best value months before peak season pricing.

Typical tempsHigh ~83–86°F • Low ~75–78°F
Weather feelMore comfortable, drier air returns
ThanksgivingPopular week for family trips
Best forShoulder season sweet spot

Weather by month

December

High ~81–84°F

Peak season returns with beautiful weather—ideal for holiday trips, family celebrations, and enjoying activities like Shorebird dining and Edge Bar sunset views.

Typical tempsHigh ~81–84°F • Low ~73–76°F
Dry seasonLow humidity, minimal rain
HolidaysChristmas + New Year's popular
Best forPeak Caribbean weather + celebrations

What to Pack for The Westin St. Thomas (By Weather)

Packing for The Westin St. Thomas Beach Resort & Spa means preparing for warm Caribbean weather, beach activities, and versatile dining options. Plan for sun protection, comfortable resort wear, and a few smart extras depending on the season.

Dry season comfort (Dec–Apr, typically ~80–84°F highs)

  • Light layers for evening breezes (especially at Edge Bar)
  • Reef-safe sunscreen + sunglasses + wide-brim hat
  • Resort casual attire for Luna Mar and Sugarfin restaurants
  • Water shoes for rocky beach areas and snorkeling
  • Comfortable walking shoes for exploring Charlotte Amalie

Hot, humid, rainy season (Jun–Oct, typically ~86–88°F highs)

  • Breathable, moisture-wicking clothing (linen, cotton blends)
  • Packable rain jacket or poncho + quick-dry items
  • Extra swimwear (rotates faster in humidity)
  • After-sun care + insect repellent
  • Travel insurance documentation (hurricane season)
  • Portable phone charger for weather app monitoring

FAQ: The Westin St. Thomas Weather by Month

What month has the best weather at The Westin St. Thomas?

Most travelers prefer the December through April dry season, when daytime highs typically range around 80–84°F with lower humidity, minimal rain, and excellent conditions for beach activities, snorkeling, water sports, and island exploration. February and March are particularly popular for their consistently beautiful weather.

When is hurricane season at The Westin St. Thomas?

Atlantic hurricane season officially runs June 1 through November 30, with peak activity typically occurring August through October. While St. Thomas can be affected by tropical storms, many pass without impact. If traveling during these months, purchase travel insurance and monitor weather forecasts closely. The resort has protocols in place for guest safety during weather events.

What months feel the hottest and most humid in St. Thomas?

July through October typically feels the hottest and most humid, with daytime highs around 86–88°F and high humidity levels. However, trade winds often provide relief, especially in the resort's beachfront location. These months are excellent for pool-focused vacations and taking advantage of air-conditioned amenities like the spa and restaurants.

Does it rain every day during the wet season?

Not typically. Rain during the wet season (roughly June through November) often comes as brief afternoon showers or passing squalls rather than all-day downpours. Many days still offer plenty of sunshine. However, during active tropical weather periods, rain can be more persistent— this is when having resort activities like dining at Shorebird or relaxing at the Lobby Bar becomes valuable.

Is The Westin St. Thomas good for families year-round?

Yes. As an all-ages resort, The Westin St. Thomas offers family-friendly amenities throughout the year including pools, kids' facilities, and various activities. The December–April period offers the most predictable weather for beach and outdoor activities, while summer months (June–August) can be great for family trips if you build in flexibility for occasional afternoon showers. Hurricane season months (especially August–October) require more flexibility but can offer excellent value for families with adaptable schedules.

What's the water temperature like at The Westin St. Thomas?

The Caribbean Sea stays wonderfully warm year-round near St. Thomas. Water temperatures typically range from about 79–81°F in winter months to 83–86°F in summer—comfortable for swimming, snorkeling, and water sports throughout the year without a wetsuit.

Are there any months to avoid at The Westin St. Thomas?

September and early October historically have the highest hurricane risk and most unpredictable weather in the Caribbean. While these months offer the lowest rates and smallest crowds, they require maximum travel flexibility and comprehensive travel insurance. If you need predictable weather for a once-a-year vacation, the December–April dry season is your safest choice.

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The Westin St. Thomas Beach Resort & Spa

BOOK YOUR STAY NOW

Questions? Contact Us!

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