UV Index in Puerto Rico, Mexico

Last updated: June 2, 2025

Awareness of the UV Index is crucial in Puerto Rico, where the sunny climate exposes residents and visitors alike to higher levels of ultraviolet radiation. Understanding these UV levels is essential not just for sunburn prevention, but also for long-term skin health, helping to minimize risks of skin damage and related conditions. With peak UV Index values reaching 13 around midday, Puerto Rico is at significant risk for overexposure, especially during its long sunny spells. Stay informed and take proactive measures to protect your skin while enjoying the vibrant beauty of this Caribbean paradise!

Hourly UV Index in Puerto Rico

As the sun rises, the UV Index begins its climb, starting at a mild 1 at 07:00. By 09:00, it reaches a moderate 3, signaling an early hint of sun exposure. However, the real intensity hits between 10:00 and 13:00, peaking at a striking 13 at 13:00, warning us to take precautions against harmful rays. The Index then gradually declines, tapering off to 10 by 15:00, and dropping further to a gentle 1 by 19:00. It's a vivid reminder of the sun's power and the importance of protecting our skin during peak hours!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	1	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	10	very high	15 min
16:00	6	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Puerto Rico

Throughout the year, UV exposure fluctuates significantly, with high-risk months identified from February to September, when the UV Index reaches extreme levels of 11 to 13, allowing for a burn time of just 10 minutes. Notably, March through August consistently maintain this high-risk designation, necessitating extra caution for visitors and residents alike. During the remaining months—January, November, and December—the UV Index ranges from 8 to 9, categorized as very high, with a burn time of 15 minutes, indicating the need for ongoing sun protection, though the risk diminishes slightly. It is crucial for everyone to prioritize skin safety by utilizing sunscreen, wearing protective clothing, and seeking shade during peak UV hours, particularly in the spring and summer months.

Monthly Maximum UV Index for Puerto Rico, Mexico

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Puerto Rico. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Puerto Rico, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Puerto Rico UV Index with Other Mexico Cities

The table above highlights how UV exposure in Puerto Rico compares to other major locations across Mexico. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Puerto Rico's solar exposure compared to other cities in Mexico. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Puerto Rico	9	11	13	13	13	13	13	13	12	11	9	8
Guadalajara UVI	9	11	14	14	14	13	13	13	13	12	9	8
Iztapalapa UVI	10	12	14	15	14	14	14	14	14	12	10	8
Ecatepec de Morelos UVI	10	12	14	15	15	14	14	13	14	12	10	8
Mexico City UVI	10	12	14	15	15	14	14	13	14	12	10	8
Puebla UVI	10	12	14	15	15	15	15	14	14	13	10	9