Last updated: July 2, 2025
In the enchanting region of Selva, Argentina, understanding the UV Index is crucial for safeguarding your skin and overall health. The UV Index serves as a vital indicator of sun exposure, helping residents and visitors alike to prevent sunburns and reduce the risk of long-term skin damage. Given Selva's humid subtropical climate (Cfa), the potential for high UV levels, especially during the midday hours when the index peaks at 5, underscores the importance of proactive sun protection strategies. Whether you’re basking in the sun or enjoying outdoor activities, being informed about UV levels can make all the difference in preserving your skin health.
The UV Index throughout the day offers a telling glimpse into solar intensity. Starting low at 07:00 with a UV Index of 0, it gradually rises, reaching 1 by 08:00 and 09:00. By 10:00, it inches up to 2, more noticeable as the day progresses. The peak sunlight unfolds around 12:00 to 14:00, where the index skyrockets to a maximum of 5. As the afternoon wanes, protective measures become less urgent, with the index decreasing to 4 at 15:00 and dropping to 2 by 16:00. By the evening, UV exposure diminishes significantly, descending back to 1 at 17:00 and returning to 0 by 19:00. It’s a classic reminder to stay sun-safe during those midday 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 | 5 | moderate | 30 min |
| 13:00 | 5 | moderate | 30 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 4 | 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 |
The UV Index shows significant seasonal variation, with the highest risk occurring from January to March and again in November and December, where it reaches an extreme level of 14. During these months, the burn time is as short as 10 minutes, necessitating extra caution for visitors and residents alike. April marks a slight decrease to 9, categorized as very high, allowing for a 15-minute burn time before damage occurs. As summer approaches, from May to July, the index dips, categorizing exposure as high to moderate, with burn times increasing to 25 to 30 minutes. However, another peak is observed in September with a return to 9, so it's critical to remain vigilant as the seasons change. As such, it is essential to protect your skin with appropriate clothing and sunscreen, especially during these high-risk months.
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 |
| Selva | 14 | 14 | 12 | 9 | 6 | 5 | 5 | 7 | 9 | 12 | 14 | 14 |
| San Miguel de Tucuman UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 7 | 10 | 13 | 15 | 15 |