UV Index / Puerto Rico / San Juan
UV Index in San Juan
Current UV index, monthly UV averages, and a practical tanning guide.
Live UV index
Live conditions are temporarily unavailable. Monthly UV averages are shown below.
Coordinates: 18.47, -66.11
Monthly UV index — San Juan
Jan8
Feb9
Mar10
Apr11
May11
Jun12
Jul12
Aug12
Sep11
Oct10
Nov8
Dec7
Best months for tanning
Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
Tanning guide
Peak UV in San Juan is typically 12. Use broad-spectrum SPF, limit midday exposure, and adjust time outdoors to your skin type and current conditions.
Frequently asked questions
What is the UV index in San Juan today?
Check the live conditions above for the latest local UV reading.
When is UV strongest?
UV is usually strongest around local midday. Cloud cover, season, altitude, and reflection can change exposure.