Live WBGT for Charlotte Amalie, the U.S. Virgin Islands capital and one of the Caribbean's busiest cruise ports. Between the historic district's hard-surfaced streets and the sun-exposed harbor front, this is where St. Thomas's heat concentrates, and where most visitors spend their day.
Last updated July 9, 2026 · Live data refreshes every 15 min
Charlotte Amalie curves around a deep harbor at the foot of steep hills. Its historic core, Main Street, the alleyways, Fort Christian, the 99 Steps, is dense, historic, and largely shade-poor, built of stone and concrete that hold the day's heat. On cruise days, thousands of visitors funnel through exactly these hottest, most enclosed blocks.
Where the town runs hot
The historic shopping district between Main Street and the waterfront is the warm zone: narrow streets, reflective surfaces, and limited airflow keep it a step above the breezier harbor edge. The Havensight and Crown Baycruise areas are open and paved, sun-exposed but often catching more wind. The hills above town, and the ride up to Paradise Point, sit in more vegetation and breeze.
Walking it safely
Pace cruise-day walking and use shops, cafés, and shade as cooling breaks, see the tourist heat guide.
Carry water and reapply sunscreen; the reflective streets add UV.
Unacclimatized visitors should treat every band one level up for the first days, see acclimatization.
Vendors, taxi and tour operators, and dockworkers on long shifts should pace water and rest by the live band, not the air temperature.
Local tip. When the trade winds are up, the harbor front breathes; when they drop on a sunny afternoon, the enclosed shopping streets are where to respect the map most.
The live card on this page shows current WBGT for the Charlotte Amalie waterfront, updated every 15 minutes. The historic shopping district a block inland, with less breeze and more reflective surfaces, can run warmer than the open harbor front.
Is it too hot to walk the shopping district midday?
On calm, sunny afternoons the narrow, hard-surfaced streets of the historic district can reach the moderate WBGT band. Cruise passengers arriving unacclimatized should pace the walking, use shade and air-conditioned stores as cooling breaks, and carry water.