Last updated: July 2, 2025
In La Tirana, Chile, being aware of the UV Index is essential for protecting your skin from harmful ultraviolet radiation. Understanding UV levels helps in preventing sunburn and maintaining overall skin health, especially as the region experiences a BWk climate characterized by hot, dry weather. With maximum UV Index readings reaching 9 during the peak hours, residents and visitors alike should take precautions against sun exposure to reduce their risk of skin damage. Embracing this knowledge empowers the community to enjoy the vibrant sun safely while exploring all that La Tirana has to offer.
At dawn, the sun starts its ascent with a UV Index of 0 at 07:00, but by 08:00, it begins to awaken, reaching 1. As the day progresses, the UV Index climbs steadily, hitting 2 by 09:00 and peaking at an intense 9 during the midday hours of 12:00 and 13:00. The highest levels of UV radiation are encountered at 11:00, where the index reaches a robust 7, urging outdoor enthusiasts to take sun safety precautions. Post-peak, the numbers gradually decline: 7 at 14:00, followed by a gentle descent to 5 at 15:00, and then slipping to 3 by 16:00. As the sun begins to set, the UV Index falls back to 1 by 17:00 and 18:00, before finally retreating to 0 at 19:00. Stay sun-aware and protect yourself during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | high | 25 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 variation, with extreme levels persisting from January to April and returning in August, September, October, and November. Among the high-risk months, January, February, March, April, and October consistently register a UV Index of 16, indicating an extreme exposure category, where unprotected skin can burn in just 10 minutes. In contrast, May, June, and July present slightly less dangerous conditions, with UV Index values in the very high category (up to 10), allowing for a marginally longer burn time of 15 minutes. Visitors and residents should exercise caution during these peak months by seeking shade, wearing protective clothing, and applying high-SPF sunscreen regularly to minimize the risks associated with excessive sun exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| La Tirana | 16 | 16 | 14 | 12 | 10 | 8 | 9 | 11 | 13 | 16 | 16 | 16 |