UV Index in Marueno, Puerto Rico

Last updated: June 2, 2025

In Marueno, Puerto Rico, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn. With a tropical climate that often exposes residents and visitors to elevated UV radiation levels, understanding daily UV exposure is essential. The UV Index peaks between 11:00 AM and 1:00 PM, reaching dangerously high levels of 13, which can lead to severe skin damage in just minutes of unprotected sun exposure. By staying informed about the UV Index, you can take proactive steps to safeguard your skin and enjoy all that Marueno's beautiful sunny days have to offer.

Hourly UV Index in Marueno

The UV Index today reflects a dynamic progression of sun intensity throughout the hours. Starting at a modest 1 at 07:00, it gradually climbs to 3 by 08:00. A steady ascent leads to a significant peak of 13 at both 12:00 and 13:00, marking the most critical hours for sun exposure. As the afternoon wanes, the index gently descends to 10 at 14:00, then to 7 at 15:00, before tapering off to 4 at 16:00. By 18:00, it drops back to 1, and the day concludes under the protective shroud of dusk with a 0 by 19:00. This data serves as a reminder to stay sun-safe during peak hours, particularly between 10:00 and 14:00 when the sun's rays are at their strongest.

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	5	moderate	30 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Marueno

The UV Index experiences significant fluctuations throughout the year, peaking during the spring and summer months. From February to October, the index reaches extreme levels, particularly April through October, with a maximum of 14 in April and May, requiring only 10 minutes of exposure for skin damage. January, November, and December are categorized as very high, with longer burn times of 15 minutes. Visitors and residents should exercise caution during the high-risk months of February to October by wearing protective clothing, applying sunscreen, and seeking shade, particularly during midday hours, to minimize the risk of skin damage from harmful UV radiation.

Monthly Maximum UV Index for Marueno, Puerto Rico

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Marueno. 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 Marueno, 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 Marueno UV Index with Other Puerto Rico Cities

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

Marueno's solar exposure compared to other cities in Puerto Rico. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Caguas UVI	9	11	13	13	14	13	12	13	13	12	9	8
Carolina UVI	9	11	13	13	14	13	12	13	13	12	9	8
San Juan UVI	9	11	13	13	14	13	12	13	13	12	9	8
Bayamon UVI	9	11	13	13	14	13	13	13	13	12	9	8
Marueno	9	11	13	14	14	13	13	13	13	12	9	8
Ponce UVI	9	11	13	14	14	13	13	13	14	12	10	9