UV Index in Belen, Costa Rica

Last updated: August 1, 2025

In Belen, Costa Rica, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn, especially in the tropical climate characterized by high solar exposure. As UV levels can soar to a striking 14 around midday, understanding these fluctuations becomes vital for outdoor enthusiasts and residents alike. With an average climate that promotes near-daily sun exposure, being informed can help you enjoy the beauty of Belen while safeguarding against harmful effects of UV rays. Prioritize your skin's protection by staying informed about the daily UV Index, ensuring safe outdoor activities and long-term health.

Hourly UV Index in Belen

The UV Index throughout the day reveals a clear pattern of intensity peaking around midday. Starting at a modest 2 at 7:00 AM, the index rises steadily, reaching a notable 11 by 10:00 AM. The highest reading, 14, occurs at 12:00 PM, indicating a significant risk for sun exposure. The intensity begins to decline post-lunch, dropping to 9 by 2:00 PM, and continues to decrease, falling to 5 at 3:00 PM. By evening, the UV Index plummets to 1 at 5:00 PM and settles at 0 by 6:00 PM. This pattern emphasizes the importance of sun protection during the midday hours when UV levels are at their peak.

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
07:002low45 min
08:004moderate30 min
09:007high25 min
10:0011extreme10 min
11:0013extreme10 min
12:0013extreme10 min
13:0012extreme10 min
14:008very high15 min
15:005moderate30 min
16:002low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Belen

The UV Index data reveals significant seasonal variations in ultraviolet radiation exposure, with the highest risk occurring from March through August, when the UV Index consistently reaches 14, categorized as extreme with a burn time of just 10 minutes. February sees a peak UV Index of 13, while September through November gradually taper to 11 and 10 respectively, though still in the extreme and very high categories. Visitors and residents should take precautionary measures during these high-risk months, including applying sunscreen, wearing protective clothing, and seeking shade to minimize the risk of skin damage. Even in the months of reduced intensity, such as December, vigilance is advised to protect against prolonged sun exposure.

Monthly Maximum UV Index for Belen, Costa Rica

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Belen. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec111314141414141313131110
Data source: Statistical UV Index data for Belen, 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 Belen UV Index with Other Costa Rica Cities

The table above highlights how UV exposure in Belen compares to other major locations across Costa Rica. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Belen's solar exposure compared to other cities in Costa Rica. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Belen111314141414141313131110
Limon UVI121314151413131313141110
Liberia UVI111314141414141313131110
Alajuela UVI121315151414141313141210
San Jose UVI121415161414141414151211
Paraiso UVI131416161515151414151211