UV Index in Marueno, Puerto Rico

Last updated: August 1, 2025

In Marueno, Puerto Rico, staying informed about the UV Index is crucial for safeguarding your skin health under the vibrant Caribbean sun. Understanding UV levels not only helps prevent painful sunburns but also mitigates long-term skin damage. With the tropical climate typical of Marueno, residents and visitors face heightened exposure risks, particularly during peak hours when UV levels soar to a maximum of 13 between noon and 1 PM. By keeping an eye on the UV Index, you can enjoy the stunning outdoors while taking proactive steps to protect your skin.

Hourly UV Index in Marueno

As the sun rises, the UV Index starts at a gentle 1 by 7:00 AM, perfect for early risers enjoying the fresh morning air. By 9:00 AM, it escalates to a moderate 5, signaling it's time to think about sun protection. The peak arrives at 12:00 PM, when the index hits a scorching 13, marking the sun’s most aggressive rays. For the next hour, it remains at this intense level before gradually declining through the afternoon: 11 at 1:00 PM, 8 at 3:00 PM, and finally down to 4 by 4:00 PM. As the sun sets, the UV Index drops to a safe 1 by 6:00 PM, then to a calming 0 by 7:00 PM, inviting a warm evening to unwind. Enjoy the day, but remember to shield yourself 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.
TimeUVICategoryTime to Burn
07:001low45 min
08:002low45 min
09:005moderate30 min
10:008very high15 min
11:0011extreme10 min
12:0013extreme10 min
13:0013extreme10 min
14:0011extreme10 min
15:007high25 min
16:004moderate30 min
17:002low45 min
18:001low45 min
19:000low45 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.
JanFebMarAprMayJunJulAugSepOctNovDec911131414131313131298
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.
 JanFebMarAprMayJunJulAugSepOctNovDec
Caguas UVI911131314131213131298
Carolina UVI911131314131213131298
San Juan UVI911131314131213131298
Bayamon UVI911131314131313131298
Marueno911131414131313131298
Ponce UVI9111314141313131412109