Last updated: July 2, 2025
Awareness of the UV Index is crucial for residents of San Martin de Loba, Colombia, where the climate zone is classified as Aw, suggesting a tropical atmosphere with significant sun exposure. Understanding UV levels is essential not only for preventing sunburn but also for safeguarding overall skin health. With peak UV Index readings reaching an intense 12 around midday, it’s vital to protect yourself during these hours to mitigate risks associated with excessive sun exposure, such as skin damage and long-term health complications. Stay informed and enjoy the sunshine safely!
As the day unfolds, the UV Index begins its climb, starting at a modest 1 at 07:00. By 08:00, it rises to 3, signaling that sunlight is becoming more potent. But the real intensity hits around 10:00, with the index soaring to 9, peaking at 12 by 12:00. This midday sun delivers the highest UV radiation, reaching its zenith at 11 by 11:00. Afterward, the index begins its descent, dropping to 9 at 14:00, before tapering off to 5 by 15:00, and dwindling to 3 at 16:00. By evening, the UV levels return to 1 at 17:00, and fade to 0 by 19:00, wrapping up a significant day under the sun. Stay protected during those peak hours when UV exposure is at its highest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 5 | moderate | 30 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 shows significant seasonal changes, with consistently extreme levels from January through November, and a slight decrease in December. The highest UV Index occurs in March and April, peaking at 14 and 15, respectively, where burn time is notably short at just 10 minutes. Visitors and residents should be especially cautious during the months of March and April, where the UV exposure is the highest, posing greater risks for skin damage. In all extreme UV months, protective measures are critical; wear sunscreen, protective clothing, and seek shade to minimize UV exposure. In December, while the UV Index drops to 10 with a burn time of 15 minutes, caution is still advised due to the potential for high sun intensity. Overall, maintaining awareness of UV levels and protecting oneself throughout the year is essential for health and safety.
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 |
| San Martin de Loba | 11 | 12 | 14 | 15 | 14 | 13 | 12 | 13 | 13 | 13 | 11 | 10 |
| Medellin UVI | 14 | 15 | 17 | 16 | 16 | 14 | 14 | 15 | 14 | 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 |