Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in La Merced, Colombia, where the sun shines brightly in its tropical climate. With UV levels peaking at a staggering 15 during midday hours, being aware of these fluctuations is essential for preventing sunburn and promoting skin health. As you explore this vibrant town, knowing when to seek shade or apply sunscreen can help reduce your risk of harmful UV exposure, ensuring that your time outdoors is both enjoyable and safe.
The UV Index data reveals a striking pattern throughout the day. Morning rays begin gently at 07:00 with a UV Index of 1, but by 08:00, it surges to 4. As the sun climbs, exposure becomes increasingly intense, peaking at 12:00 with a critical UV Index of 15—a clear warning to seek shade. The highest reading occurs at 11:00, registering an intense 14, before gradually tapering off to 10 by 14:00. Later in the afternoon, the index declines further, dropping to 6 at 15:00, and finishing the day with a return to safer levels of 1 by 17:00 and 18:00, finally settling at 0 by 19:00. It's a day that reminds us of the importance of sun safety—especially during those midday hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 11 | extreme | 10 min |
11:00 | 14 | extreme | 10 min |
12:00 | 15 | extreme | 10 min |
13:00 | 14 | extreme | 10 min |
14:00 | 10 | very high | 15 min |
15:00 | 6 | 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 |
Across the year, the UV Index remains extremely high, with only slight variations, peaking at 16 in March and April. This consistent exposure means that January through May, as well as September through November, remain particularly high-risk months for sunburn, with a burn time as short as 10 minutes regardless of the month. Visitors and residents should take precautionary measures, such as wearing broad-spectrum sunscreen, protective clothing, and wide-brimmed hats when outdoors, especially during peak sun hours. Being mindful of UV exposure is essential for skin health all year round.
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 |
La Merced | 13 | 15 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 12 |
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 |