UV Index in St. Thomas
Real-time UV forecast & tanning weather
Current Conditions
Loading live weather data...Weather data by Open-Meteo (CC BY 4.0)
Monthly UV Index in St. Thomas
Average daily maximum UV index by month
Jan
10
Very High
Feb
10
Very High
Mar
10
Very High
Apr
11
Extreme
May
11
Extreme
Jun
12
Extreme
Jul
12
Extreme
Aug
12
Extreme
Sep
11
Extreme
Oct
11
Extreme
Nov
10
Very High
Dec
10
Very High
Best Months to Tan in St. Thomas
Based on average UV levels, the best months for tanning in St. Thomas are:
January Excellent
February Excellent
March Excellent
April Excellent
May Excellent
June Excellent
July Excellent
August Excellent
September Excellent
October Excellent
November Excellent
December Excellent
Rating based on average monthly UV index
Tanning Guide for St. Thomas
St. Thomas benefits from a tropical climate with powerful, year-round UV radiation, ideal for tanning. Magens Bay is a top spot, but the strong equatorial sun requires careful timing, with tanning best suited for the early morning or late afternoon hours.
UV levels in St. Thomas are high year-round due to its tropical location. Always wear SPF 30+ and limit initial sessions to 15-20 minutes.
Related Guides
Frequently Asked Questions
What is the UV index in St. Thomas right now?
The current UV index in St. Thomas is shown in the live weather section above. UV levels change throughout the day, typically peaking between 11 AM and 2 PM local time.
What is the best month to tan in St. Thomas?
The best months for tanning in St. Thomas are January, February, March, April, May, June, July, August, September, October, November, December, when average UV levels reach 7 or higher.
How long should I tan in St. Thomas?
Tanning time depends on your skin type and the current UV index. For a moderate UV of 11, a person with Skin Type III (medium complexion) can safely tan for about 14 minutes per session. Use our Tanning Calculator for personalized recommendations.
Is it safe to tan in UV index 12?
UV index 12 is classified as Extreme. Extreme — stay in shade during peak hours. Tanning is not recommended without strong protection.
When is the peak UV time in St. Thomas?
UV levels in St. Thomas typically peak between 11:00 AM and 2:00 PM local time. The exact peak depends on the season, cloud cover, and altitude.
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