UV Index in Coamo, Puerto Rico

Last updated: July 2, 2025

Awareness of the UV Index is crucial for residents of Coamo, Puerto Rico, where the tropical climate can lead to elevated sun exposure and potential skin damage. Understanding UV levels is essential not only for preventing sunburn but also for maintaining overall skin health. Coamo experiences significant UV intensity, especially around midday when the index peaks at a striking 13—a time when the risk for harm is at its highest. By staying informed about these levels, you can enjoy the sunny days while taking the necessary precautions to safeguard your skin from UV radiation.

Hourly UV Index in Coamo

As the sun rises, the UV Index starts modestly at 1 at 07:00, indicating minimal risk. By 09:00, it climbs to a moderate 5, encouraging outdoor enthusiasts to take precautions. The peak emerges around 12:00, hitting a noticeably high 13, and remains intense until 14:00 when it slightly dips to 11. As the afternoon wanes, the index gradually decreases; by 15:00, it falls to 7, and as evening approaches, it continues its decline to 2 at 17:00. Finally, the UV Index settles at 1 by 18:00, ultimately dipping to a safe 0 by 19:00. It's a day where midday sun protection is paramount!

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	2	low	45 min
09:00	5	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 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 Coamo

The UV Index exhibits significant seasonal changes, with the highest readings occurring from February to October, where exposure levels reach an extreme category and burn times are dangerously short at 10 minutes. March through September are particularly high-risk months, peaking in April and May with a UV Index of 14. Residents and visitors should be extremely cautious during these months, ensuring proper sun protection such as wearing sunscreen, protective clothing, and sunglasses. In contrast, November and December are notable for their relatively lower UV levels classified as very high, albeit still requiring sun safety measures, with burn times lengthening to 15 minutes. It is advisable for everyone to monitor the UV Index regularly and adopt appropriate precautions year-round to minimize the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Coamo, Puerto Rico

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

The table above highlights how UV exposure in Coamo 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.

Coamo'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
Coamo	9	11	13	14	14	13	13	13	14	12	10	9
Ponce UVI	9	11	13	14	14	13	13	13	14	12	10	9