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.
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.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 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 |
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.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Belen | 11 | 13 | 14 | 14 | 14 | 14 | 14 | 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 |