Last updated: June 2, 2025
In Zapotal, Costa Rica, being aware of the UV Index is crucial for protecting your skin and overall health. With the region’s warm climate, understanding UV levels can help you prevent sunburn and reduce the long-term risks of skin damage. During peak hours, the UV Index can soar as high as 13, indicating extreme exposure risks between 10 AM and 2 PM. With this knowledge, residents and visitors alike can make informed choices about sun safety, ensuring a safe and enjoyable experience under the Costa Rican sun.
The UV Index throughout the day showcases a dynamic and intense solar experience. Starting at 7:00 AM, it begins modestly at 2, gradually escalating to 5 by 8:00 AM. The real surge occurs by 9:00 AM, peaking at a striking 11 by 10:00 AM, and reaching its maximum of 13 during both 11:00 AM and 12:00 PM. As the afternoon unfolds, the index starts to decline, dipping to 12 at 1:00 PM and tapering off to 8 by 2:00 PM. By mid-afternoon, the UV intensity diminishes further, falling to 5 at 3:00 PM, before settling at a gentle 2 by 4:00 PM. The evening brings a welcome respite, with the UV Index reducing to 1 at 5:00 PM and finally dropping to zero by 7:00 PM, marking the end of a day characterized by significant exposure potential. Stay protected during those peak UV hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 5 | moderate | 30 min |
09:00 | 8 | very high | 15 min |
10:00 | 11 | extreme | 10 min |
11:00 | 13 | extreme | 10 min |
12:00 | 13 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 8 | very high | 15 min |
15:00 | 5 | moderate | 30 min |
16:00 | 2 | low | 45 min |
17:00 | 1 | low | 45 min |
18:00 | 0 | low | 45 min |
19:00 | 0 | low | 45 min |
Throughout the year, the UV Index displays seasonal variations that reflect increased sun exposure, particularly from January to May, where it consistently remains at extreme levels (11-14) with a burn time of just 10 minutes. This trend indicates that March, April, and May are the highest-risk months, urging visitors and residents to take extra precautions during these months. While June to October maintains an extreme UV Index, it slightly decreases to 13. As winter approaches, November sees a drop to 11, followed by December's very high level of 10. Therefore, it is crucial for everyone to practice sun safety measures—such as seeking shade, wearing protective clothing, and applying sunscreen—especially from January to May to mitigate the risk of harmful UV exposure.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Zapotal | 11 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 11 | 10 |
Limon UVI | 12 | 13 | 14 | 15 | 14 | 13 | 13 | 13 | 13 | 14 | 11 | 10 |
Liberia UVI | 11 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 11 | 10 |
Alajuela UVI | 12 | 13 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 14 | 12 | 10 |
San Jose UVI | 12 | 14 | 15 | 16 | 14 | 14 | 14 | 14 | 14 | 15 | 12 | 11 |
Paraiso UVI | 13 | 14 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 15 | 12 | 11 |