UV Index in La Cruz, Costa Rica

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in La Cruz, Costa Rica, where the sun's rays can be particularly intense. With UV levels often reaching as high as 14 during peak hours, being aware of these fluctuations is essential for preventing sunburns and protecting skin health. In this warm tropical climate, exposure to UV radiation increases risk, making it vital to plan outdoor activities wisely. By staying informed about the UV Index, you can enjoy the beautiful beaches and vibrant landscapes of La Cruz while safeguarding your skin from potential harm.

Hourly UV Index in La Cruz

The UV Index throughout the day exhibits a pronounced peak around midday. Starting at a modest 2 at 07:00, it escalates rapidly, reaching a significant 14 by 11:00 and 12:00, marking the most intense exposure period. As the afternoon progresses, the index begins to decline, dropping to 9 by 14:00 and further to 5 by 15:00. The evening brings a welcome relief, with values plummeting to 1 by 17:00 and finally settling to 0 post 18:00. This data emphasizes the importance of sun protection during peak hours, particularly from 10:00 to 14:00, when the UV radiation is most hazardous. Stay safe, stay shaded! ☀️

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
08:005moderate30 min
09:008very high15 min
10:0011extreme10 min
11:0014extreme10 min
12:0014extreme10 min
13:0012extreme10 min
14:009very high15 min
15:005moderate30 min
16:002low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in La Cruz

The UV Index exhibits a distinct seasonal pattern, with extreme exposure categories persisting from January through August, showcasing values as high as 15 in April. The months of March to August are particularly high-risk, with consistent values around 14, indicating a burn time of only 10 minutes during peak hours. As the year progresses, a slight decline occurs, with November and December experiencing values of 11 and 10, respectively, but still warranting caution due to very high exposure levels. Visitors and residents are strongly advised to take proactive measures during these months by wearing protective clothing, applying broad-spectrum sunscreen, and limiting sun exposure during peak hours to reduce the risk of skin damage.

Monthly Maximum UV Index for La Cruz, Costa Rica

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in La Cruz. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec111314151414141313131110
Data source: Statistical UV Index data for La Cruz, 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 La Cruz UV Index with Other Costa Rica Cities

The table above highlights how UV exposure in La Cruz 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.
La Cruz's solar exposure compared to other cities in Costa Rica. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
La Cruz111314151414141313131110
Limon UVI121314151413131313141110
Liberia UVI111314141414141313131110
Alajuela UVI121315151414141313141210
San Jose UVI121415161414141414151211
Paraiso UVI131416161515151414151211