Last updated: June 2, 2025
Understanding the UV Index is essential for residents of La Calera, Argentina, especially given its Cwa climate, characterized by distinct seasonal changes and sunny days. As UV radiation can peak during midday, being aware of the UV levels can help prevent sunburn and protect long-term skin health. With maximum UV Index readings reaching up to 4 around noon, it's crucial to take precautions during peak hours to minimize risks associated with overexposure. Whether you're enjoying the outdoors or simply going about your day, staying informed about the UV Index can make a significant difference in safeguarding your skin.
Today's UV Index presents a gradual increase in sunlight intensity as the morning unfolds. Starting at 0 from 07:00 to 08:00, the index rises to 1 by 09:00 before reaching 2 at 10:00. The real peak occurs between 12:00 and 14:00, where the UV Index stabilizes at a maximum of 4. As the day progresses, the intensity starts to decline, dropping to 3 at 15:00, followed by a steady decrease to 1 by 18:00 and back to 0 by 19:00. It’s a perfect day to enjoy the outdoors, but don’t forget to wear sunscreen during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 0 | 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 | 4 | 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 varies significantly, with the highest risk occurring in January, February, and March, all showing an extreme UV Index of 15 to 12, and a burn time of just 10 minutes. As we transition into the warmer months, April and September display a very high UV Index of 9, necessitating caution with a burn time of 15 minutes. The summer months of June and July offer a moderate level of UV exposure, allowing for a slightly extended burn time of 30 minutes. Notably, August shifts back to a high category with a UV Index of 7. As winter returns in October through December, UV levels rise back to extreme, emphasizing the need for protection with a burn time of 10 minutes. Visitors and residents are strongly advised to remain vigilant during high-risk months—especially from January to March and October to November—by wearing sunscreen, protective clothing, and seeking shade when the UV index is elevated.
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 |
| La Calera | 15 | 14 | 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 |