Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Valle de San Jose, Colombia, where the tropical climate brings intense sunlight for most of the year. With UV levels peaking at 14 during midday, awareness of these fluctuations is essential for preventing sunburn and maintaining skin health. The varying UV Index throughout the day, especially reaching dangerous levels between 11:00 AM and 1:00 PM, highlights the importance of protecting your skin in this picturesque region. Stay informed and enjoy the beauty of Valle de San Jose while safeguarding your health!
The UV Index for the day displayed a striking increase as the sun climbed higher in the sky. Starting at a gentle 1 by 7:00 AM, it swiftly rose to a moderate 3 by 8:00 AM. As the clock struck 9:00 AM, the intensity shot up to a significant 7, reaching a peak of 14 at 12:00 PM—the optimal time for sun protection. The afternoon saw a gradual decline, with readings of 13 at 1:00 PM and 10 by 2:00 PM. As the sun set, the UV Index dwindled, dropping to 3 at 4:00 PM and finally retreating to a safe 0 by 7:00 PM. This data highlights the importance of midday sun safety, making it essential to reapply sunscreen and seek shade when UV levels are at their highest.
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 | 11 | extreme | 10 min |
11:00 | 13 | extreme | 10 min |
12:00 | 14 | extreme | 10 min |
13:00 | 13 | 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 |
Throughout the year, the UV Index remains consistently high, peaking between January and April when it reaches extreme levels of 14 to 17. These months, particularly March and April with a UV index of 16 and 17, represent the highest risk for harmful sun exposure, with a burn time of just 10 minutes. As a result, residents and visitors are strongly advised to take necessary precautions, such as wearing sunscreen, hats, and protective clothing during these months. Although the UV index remains elevated through the summer and into the fall, the June to October period does not exceed a UV index of 14. Thus, maintaining vigilance and protection against UV rays is essential year-round due to consistently extreme exposure levels.
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 |
Valle de San Jose | 14 | 15 | 16 | 17 | 15 | 14 | 14 | 14 | 14 | 14 | 12 | 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 |