UV Index in Puerto Rico, Peru

Last updated: May 3, 2025

Understanding the UV Index in Puerto Rico is crucial for safeguarding your skin and overall health under the tropical sun. With UV levels soaring to a maximum of 13 during peak hours, awareness is key to preventing sunburn and long-term skin damage. As an island characterized by its Af climate, Puerto Rico experiences intense UV exposure, especially between 10 AM and 2 PM when the sun's rays are at their fiercest. By keeping an eye on the UV Index, residents and visitors alike can enjoy the outdoors while taking protective measures to maintain healthy skin.

Hourly UV Index in Puerto Rico

The UV Index reveals a striking pattern throughout the day, peaking dramatically around noon. Starting from a gentle 1 at 07:00, the index climbs steadily, hitting 3 by 08:00 before surging to 10 at 10:00 and reaching its maximum of 13 at 12:00. This midday high suggests the need for strong sun protection as the intensity begins to wane in the afternoon, dropping to 9 at 14:00 and further declining to a moderate 5 by 15:00. As the sun sets, the UV Index drops sharply to 2 at 16:00 and returns to its morning levels with a 1 at 17:00 and 0 from 18:00 onward. For sun-enthusiasts and safety-conscious individuals alike, the data paints a clear picture: the hours around midday demand the utmost vigilance against UV exposure!

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	3	moderate	30 min
09:00	6	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	9	very high	15 min
15:00	5	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Puerto Rico

Throughout the year, the UV Index remains extremely high in this region, with values consistently ranging from 11 to 16. Notably, the months of January through April exhibit the highest UV Index readings, reaching a peak of 16, indicating a high-risk period for sunburn with a burn time of just 10 minutes. While the index slightly decreases in May and June, it remains critical to stay vigilant, with sustained extreme levels until September before dropping gradually in the fall. For both visitors and residents, it is essential to take protective measures such as wearing sunscreen, long clothing, and seeking shade, particularly during these high-risk months when the UV Index poses a significant threat to skin health.

Monthly Maximum UV Index for Puerto Rico, Peru

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 Peru Cities

The table above highlights how UV exposure in Puerto Rico compares to other major locations across Peru. 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 Peru. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Callao UVI	14	14	14	12	10	9	10	11	12	13	14	13
Lima UVI	14	14	14	12	10	9	10	11	12	13	14	13
Trujillo UVI	15	15	15	14	12	11	11	11	13	14	14	14
Chiclayo UVI	14	15	15	14	13	11	11	12	15	14	14	13
Puerto Rico	15	16	16	16	13	12	11	12	14	15	14	14
Arequipa UVI	18	17	17	15	12	10	11	13	15	17	18	17