Last updated: July 2, 2025
Understanding the UV Index in San Clemente del Tuyu, Argentina is crucial for maintaining healthy skin and preventing sunburn. With the coastal town's Cfb climate, characterized by mild temperatures and ample sun exposure, residents and visitors alike must stay informed about daily UV levels. During peak hours, typically between 11:00 AM and 3:00 PM, the UV Index can reach moderate levels of up to 3, signaling a heightened risk for skin damage. By being aware of these UV levels, you can enjoy the beautiful beaches while protecting your skin from harmful rays.
The UV Index throughout the day reveals a gradual increase in sun intensity, peaking mid-afternoon. Starting at 0 at 07:00, the index rises to 1 by 08:00 and remains moderate at 1 for the following hour. As the sun ascends, the intensity reaches 2 by 10:00, climbing further to 3 at 11:00, sustaining this level until 14:00. After this peak, a gentle decline begins, with the index dropping to 2 at 15:00, and gradually easing back to 1 by 17:00, before retreating to 0 by 18:00. For anyone spending time outdoors, the late morning to early afternoon presents the highest UV exposure; thus, caution and sun protection are highly advisable during these 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 | 3 | moderate | 30 min |
| 13:00 | 3 | moderate | 30 min |
| 14:00 | 3 | moderate | 30 min |
| 15:00 | 2 | low | 45 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences significant seasonal fluctuations, with January and December leading as the months with the highest risk, both at UV Index 14 in the extreme exposure category, where you can burn in just 10 minutes. Notably, February and November also pose a high risk with UV Index 12. As spring approaches, March sees a reduction to UV Index 10 (very high), while April drops to UV Index 7 (high), allowing for longer safe exposure times of 25 minutes. The summer months of May, June, and July present moderate risks (UV Index 4 to 3) with burn times extending to 30 minutes. However, this risk rises again in September and October before returning to extreme levels in late fall and winter. Visitors and residents should take precautions, especially during the high-risk months of January, February, October, and November, by wearing protective clothing, applying sunscreen, and seeking shade during peak sun hours to ensure skin safety.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Clemente del Tuyu | 14 | 12 | 10 | 7 | 4 | 3 | 3 | 5 | 7 | 10 | 12 | 14 |
| 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 |