United States Virgin Islands — Sea Water Temperature and Annual Ranges
Up-to-date sea water temperatures for the coasts of United States Virgin Islands. Learn about today’s conditions, monthly averages, and how the surrounding seas and oceans vary by season. We find every place where you can swim and show you the water temperature there today and throughout the year.
Sea Water Temperature Along the Coast
Chart of Average Temperature Changes Over the Last 60 Days
Places with the Warmest Sea Water Today
The Most Popular Seaside Places
Coastal Seas and Oceans
Water Temperature and Swimming Overview
Regions and Map
Water Temperature Trends
The United States Virgin Islands enjoy warm coastal waters year-round, making the sea a major attraction for visitors and residents. Typical seawater temperatures along the coast range from about 25–27 °C (77–81 °F) in the coolest winter months to roughly 28–30 °C (82–86 °F) in the peak of summer. Spring and early summer usually sit in the mid-to-high 20s °C (around 79–82 °F), while autumn often remains pleasantly warm, between about 27–29 °C (81–84 °F). Local variations occur with currents, bays and exposed shores sometimes feeling slightly cooler or warmer, and short-term changes can follow weather patterns such as prolonged trade winds or tropical storms.
Swimming Conditions
Swimming is generally allowed and commonly practiced throughout the islands because the water temperatures are comfortable for most people without wetsuits and many beaches have gentle entry points. Popular beaches, sheltered bays and extensive coral reefs offer excellent conditions for swimming, snorkeling and diving. However, safety depends on conditions: beach access can be restricted or ill-advised during rough surf, strong rip currents, or tropical weather, and occasional marine hazards such as jellyfish may prompt advisories. Visitors and swimmers should follow local signage, lifeguard instructions and weather advisories, respect reef ecosystems by avoiding contact with coral, and exercise normal precautions when entering open ocean waters.