UV Index in La Cruz, Costa Rica

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents and visitors in La Cruz, Costa Rica, where the tropical climate can expose you to high levels of ultraviolet radiation. Awareness of UV levels not only helps in preventing painful sunburns but also plays a significant role in maintaining long-term skin health. With peak UV exposure times hitting a formidable 14 around midday, it’s essential to be proactive about sun protection. Enjoying the beautiful weather and vibrant outdoor activities in La Cruz can come with risks, making it vital to keep an eye on the UV Index and take necessary precautions to ensure a safe and enjoyable experience under the sun.

Hourly UV Index in La Cruz

As the sun rises, the UV Index starts off low at 2 at 07:00, perfect for a morning stroll. By 08:00, it climbs to 4, indicating a bit more sun exposure. The heat of the day peaks between 10:00 and 12:00, with the UV Index soaring to a striking 14 at 12:00. This is the time to take precautions! As the afternoon wanes, the index gradually declines, dropping to 9 by 14:00 and falling further to 5 at 15:00. By the evening, it’s safe to venture out again, with levels decreasing to a mere 0 by 18:00 and remaining so through the night. Stay sun-smart and enjoy the beautiful day while knowing when to seek shade!

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
14:009very 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