Last updated: August 1, 2025
Understanding the UV Index in Rio Bueno, Chile is essential for everyone who enjoys the region's beautiful landscapes and sunny days. With varying UV levels throughout the day, being aware of these rates is crucial for sunburn prevention and maintaining long-term skin health. Rio Bueno experiences a temperate climate (Cfb) that can still expose residents and visitors to significant UV radiation, particularly during midday hours. By keeping an eye on the UV Index, you can protect yourself while enjoying countless outdoor activities in this picturesque location.
The UV Index throughout the day showcases a gradual rise and fall in intensity. Starting at a cool 0 at 07:00, the index slowly climbs, reaching 1 by 08:00 and staying steady until 10:00. A noticeable upswing occurs around 11:00, peaking at 3 from 12:00 to 13:00, signaling the peak sun exposure hours. As the afternoon rolls in, the index dips back to 2 between 14:00 and 15:00, before declining again to 1 by 16:00. Finally, the day winds down with a return to 0 by 18:00, ensuring a safe evening for outdoor activities. Remember to protect your skin during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 1 | low | 45 min |
| 10:00 | 2 | low | 45 min |
| 11:00 | 3 | moderate | 30 min |
| 12:00 | 4 | moderate | 30 min |
| 13:00 | 5 | moderate | 30 min |
| 14:00 | 4 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV exposure reveals distinct seasonal changes, peaking during the winter and late fall months, which may come as a surprise. January and February experience extreme UV indices of 14 and 12, respectively, with a burn time as short as 10 minutes, indicating a high-risk environment for sunburn. March begins a transition to very high levels (UV index 9) with a burn time of 15 minutes, while April reaches a high level (UV 6) with increased burn time at 25 minutes. The UV index drops in June to a low of 2, suggesting a safer period for sun exposure with a burn time of 45 minutes, before gradually rising again into moderate levels from July through September. Notably, both November and December return to extreme levels with UV indices of 12 and 13, again emphasizing the need for caution. Visitors and residents should take extra precautions during these high-risk months (January, February, November, and December) by wearing sunscreen, protective clothing, and seeking shade to minimize the risk of UV-related health issues.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rio Bueno | 14 | 12 | 9 | 6 | 4 | 2 | 3 | 5 | 7 | 9 | 12 | 13 |
| Santiago UVI | 14 | 12 | 11 | 7 | 5 | 3 | 4 | 6 | 8 | 11 | 12 | 14 |
| Valparaiso UVI | 14 | 12 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 12 | 14 |
| Vina del Mar UVI | 14 | 12 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 12 | 14 |
| Puente Alto UVI | 15 | 14 | 12 | 8 | 6 | 4 | 6 | 8 | 11 | 12 | 14 | 15 |
| Antofagasta UVI | 15 | 15 | 13 | 10 | 8 | 6 | 7 | 9 | 11 | 14 | 15 | 15 |