Last updated: July 2, 2025
In San Martin, Argentina, awareness of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels is essential to prevent sunburn and protect against long-term skin damage, especially in a region classified under the BWk climate zone, where intense sun exposure can pose significant risks. During peak hours, particularly from 12 PM to 3 PM, the UV Index reaches a maximum of 4, indicating a moderate risk for harm from unprotected sun exposure. Stay informed about the UV Index to enjoy the sunny outdoors while keeping your skin healthy and safe!
The UV Index today experiences a gradual climb as the sun rises and reaches its peak between 12:00 PM and 3:00 PM, where it maintains a value of 4—indicating moderate sun exposure risk. Starting from a cool 0 at 07:00 AM and 08:00 AM, it slowly progresses to 1 by 09:00 AM and 10:00 AM, then jumps to 2 by 11:00 AM. As the afternoon sun takes center stage, the index stabilizes, creating a reminder for sun safety. Following this peak, the index sees a gentle decline, concluding the day back at 1 by 06:00 PM and returning to 0 by 07:00 PM. Be mindful of the midday rays!
| 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 | 1 | low | 45 min |
| 11:00 | 2 | low | 45 min |
| 12:00 | 4 | moderate | 30 min |
| 13:00 | 4 | moderate | 30 min |
| 14:00 | 4 | 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 extreme levels observed from January to March, peaking at 15, and a return to extreme conditions in October to December. During these high-risk months, the recommended burn time is as low as 10 minutes, necessitating vigilant sun protection for both residents and visitors. From April to September, the UV Index gradually decreases, reaching moderate levels in June and July (UV Index 4) and rising again to high in August. However, April and September are categorized as very high, with burn times of 15 minutes. To mitigate UV exposure, it is crucial to seek shade, wear protective clothing, and use sunscreen, especially during peak 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 |
| San Martin | 15 | 14 | 12 | 8 | 6 | 4 | 4 | 6 | 8 | 12 | 14 | 15 |
| 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 |