Last updated: July 2, 2025
Understanding the UV Index is essential for everyone in Santa Rosa de Osos, Colombia, where the climate's tropical nature leads to significant sun exposure. With UV levels peaking at a dangerous 15 around noon, awareness of these numbers is crucial for preventing sunburn and protecting skin health. Proper knowledge of UV risks helps residents and visitors enjoy the outdoors safely, especially during the sunny hours when the index climbs, reaching dangerously high levels. Stay informed to ensure your sun-soaked adventures in this beautiful region remain both enjoyable and safe!
As the sun rises, the UV Index begins its climb, starting at a minimal level of 1 at 07:00. By 08:00, it reaches 3, signaling a moderate but cautious need for sun protection. The intensity peaks at 12:00 with a striking 15, making it crucial for outdoor enthusiasts to seek shade and wear protective gear. The afternoon sees a slight decrease, with the index dropping to 11 at 14:00, yet still indicating significant sun exposure. As the day winds down, the UV levels drop back to 1 by 17:00, and finally to 0 after 19:00, marking a safe return to evening activities. Remember, during peak hours, particularly between 10:00 and 13:00, prioritize sun safety to protect your skin while enjoying the outdoors!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 13 | extreme | 10 min |
| 12:00 | 15 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences consistently high levels throughout the year, peaking in the spring months with January to April recording extreme ratings between 14 and 17. The highest risk for UV exposure occurs during these months, making January through April particularly dangerous for sunburn, with a burn time of only 10 minutes. Although the index slightly decreases in May through December, the UV levels remain significant and fall within the extreme category. Therefore, it is crucial for both visitors and residents to practice sun safety year-round, including wearing protective clothing, using sunscreen with high SPF, and seeking shade during peak hours, especially during the high-risk months of January to April.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Barranquilla UVI | 11 | 12 | 14 | 14 | 13 | 12 | 13 | 13 | 13 | 13 | 11 | 10 |
| Cartagena UVI | 11 | 11 | 13 | 15 | 13 | 13 | 12 | 13 | 13 | 13 | 11 | 10 |
| Medellin UVI | 14 | 15 | 17 | 16 | 16 | 14 | 14 | 15 | 14 | 14 | 13 | 12 |
| Santa Rosa de Osos | 14 | 15 | 16 | 17 | 16 | 15 | 15 | 14 | 15 | 14 | 13 | 12 |
| Cali UVI | 15 | 16 | 17 | 17 | 15 | 14 | 14 | 14 | 15 | 14 | 13 | 12 |
| Bogota UVI | 15 | 16 | 18 | 18 | 17 | 15 | 15 | 16 | 15 | 15 | 14 | 13 |