UV Index in Comunas, Puerto Rico

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Comunas, Puerto Rico, where the tropical climate can lead to high UV exposure, especially during midday hours. With UV levels peaking at 12, awareness is key to preventing sunburns and safeguarding skin health. By knowing these levels, you can take proactive steps to protect yourself and your loved ones from harmful UV rays that can cause both immediate discomfort and long-term skin damage. Whether you’re enjoying the vibrant outdoors or simply soaking up the sun, staying informed about the UV Index in Comunas helps ensure that your experiences remain safe and enjoyable.

Hourly UV Index in Comunas

The UV Index throughout the day showcases a dynamic dance of sun intensity. Starting at a mild 1 at 07:00, the index gradually rises, hitting 3 by 08:00. As the morning progresses, it peaks at a striking 12 between 12:00 and 13:00, indicating the strongest sun exposure—perfect for a beach day but not without caution! By 15:00, the UV levels begin to retreat, dropping to 7, and continue to fall, reaching 2 by 17:00. As the sun sets, the index dwindles further to 0 by 19:00, signifying a gentle end to the day. Remember to stay protected during those 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	3	moderate	30 min
09:00	5	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	12	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 Comunas

Throughout the year, UV Index levels exhibit significant seasonal variations, with peak exposure occurring from March to September. The highest UV Index is recorded in September at 14, indicating an extreme exposure category with a burn time of only 10 minutes. To protect against harmful UV radiation, residents and visitors should be particularly cautious during the high-risk months of February through October, when the UV Index consistently reaches extreme levels of 11 or higher. It is advisable to use effective sun protection measures, such as sunscreen, hats, and protective clothing, especially during midday hours when the risk of sunburn is greatest. As UV levels decrease in November and December, the risk remains very high, with burn times of 15 minutes, so sun safety should still be a priority during the winter months.

Monthly Maximum UV Index for Comunas, Puerto Rico

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

The table above highlights how UV exposure in Comunas 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.

Comunas'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
Comunas	9	11	13	13	13	13	12	13	14	12	9	9
Bayamon UVI	9	11	13	13	14	13	13	13	13	12	9	8
Ponce UVI	9	11	13	14	14	13	13	13	14	12	10	9