Last updated: June 2, 2025
In La Caldera, Argentina, understanding the UV Index is crucial for safeguarding your skin health and preventing sunburn. With a Cwa climate that brings plenty of sunshine throughout the year, residents and visitors alike must be aware of the varying levels of UV exposure. As the UV Index peaks at 7 during the midday hours, staying informed helps you take the necessary precautions to enjoy the outdoors safely. Monitoring these levels not only protects you from harmful UV rays but also promotes long-term skin health, ensuring that you can thrive under the Argentine sun.
The UV Index data for the day unfolds a dynamic story of solar intensity. Starting at a maximum of 0 at 07:00, the index gradually creeps up to 1 by 08:00 and remains at that level until 09:00. As the sun climbs higher, it peaks at a significant 7 during the noon hours of 13:00 and 14:00, indicating a high risk of harm from unprotected sun exposure. The afternoon brings a slight decrease, with the index dropping to 5 by 15:00 and continuing to decline throughout the evening. By 19:00, it settles back to 0, signaling that the sun's strength has diminished. Overall, this hourly snapshot underscores the importance of sun protection during peak hours, especially between 11:00 and 14:00 when the UV Index is at its highest.
| 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 | 4 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
During the year, seasonal UV changes demonstrate a notable pattern, with the highest UV Index values occurring during the winter and early spring months, reaching an extreme level of 18 in January, November, and December. The high-risk months for sun exposure are predominantly from January through April and notable months like August and September, where the UV Index also spikes to extreme levels. Residents and visitors should take precautions, especially during these months, by minimizing sun exposure, wearing protective clothing, and using high-SPF sunscreen, as burn times can be as short as 10 minutes in extreme categories. Even in months with lower UV Index readings, such as May and June, vigilance is advised, given the increasing UV Index and associated risk levels.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Buenos Aires UVI | 14 | 13 | 11 | 7 | 5 | 4 | 4 | 6 | 8 | 10 | 13 | 14 |
| Rosario UVI | 14 | 13 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 13 | 14 |
| Mendoza UVI | 15 | 14 | 12 | 8 | 6 | 4 | 5 | 6 | 9 | 12 | 14 | 15 |
| Cordoba UVI | 15 | 13 | 12 | 9 | 6 | 4 | 5 | 7 | 9 | 12 | 14 | 15 |
| San Miguel de Tucuman UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 7 | 10 | 13 | 15 | 15 |
| La Caldera | 18 | 17 | 16 | 13 | 9 | 7 | 9 | 11 | 16 | 17 | 18 | 18 |