Last updated: May 3, 2025
Understanding the UV Index in Villa Castelli, Argentina, is crucial for maintaining skin health and preventing sunburn, especially in a region characterized by its arid BWk climate. With UV levels reaching their peak between 12:00 PM and 2:00 PM, residents and visitors should remain vigilant during these hours to protect themselves from harmful rays. By staying informed about UV exposure risks, you can enjoy the sunny climate while safeguarding your skin against possible damage. Whether you're exploring the beautiful landscapes or spending time outdoors, knowing the UV Index empowers you to make smart decisions for your health and well-being.
As the sun rises, the UV Index begins at a low 0 at 07:00, indicating minimal risk for sun exposure. By 08:00 and 09:00, it gradually ticks up to 1, maintaining a low level. The intensity climbs to 2 by 10:00, but it’s not until 11:00 that we see a significant increase, reaching a moderate 4. The peak UV Index, a striking 7, occurs between 13:00 and 14:00, suggesting high exposure risk—perfect conditions to apply sunscreen and seek shade. As the afternoon rolls on, the values dip to 6 at 15:00 and then decrease further, falling back to 4 at 16:00, before tapering to lower levels of 2 by 17:00, and finally returning to a safe 1 by 18:00. The day closes out at 19:00 with a UV Index of 0, marking a gentle end to sun-related concerns.
| 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 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV exposure varies significantly, with high-risk months predominantly in the winter and early spring, where the UV Index frequently reaches extreme levels. From January to April, the UV Index remains between 14 to 17, making burn times alarmingly short at just 10 minutes. As temperatures rise, the UV Index decreases slightly in May and June, dropping to 6 to 7, allowing for longer burn times of 25 minutes. However, come August, it spikes again to 8, categorized as very high, with a reduced burn time of 15 minutes. Notably, September to November returns to extreme levels, urging caution in exposure, especially with a 10-minute burn time persisting. Residents and visitors should prioritize sun protection year-round, particularly during these high-risk months, by wearing sunscreen, protective clothing, and seeking shade to minimize the risk of skin damage.
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 |
| Villa Castelli | 17 | 16 | 14 | 11 | 7 | 6 | 6 | 8 | 12 | 14 | 16 | 17 |