Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of San Martin de los Andes, Argentina, especially given its stunning outdoor attractions and vibrant climate. Being aware of UV levels not only helps in preventing sunburn but also plays a vital role in maintaining long-term skin health. In this Cfb climate zone, typical UV exposure is relatively moderate, peaking around midday when levels can reach up to 3. By staying informed about the UV Index, you can enjoy the breathtaking landscapes while taking necessary precautions against harmful sun exposure.
The UV Index for the day presents a dynamic pattern that peaks in the midday sun. Starting from 07:00, the index remains at a safe 0, gradually increasing to 1 by 09:00 and reaching 2 by 11:00. As noon approaches, the UV Index hits its peak at 3 from 12:00 to 15:00, suggesting that solar protection is essential during these hours. After that, it begins to decline, dropping back to 1 by 17:00 and returning to 0 by 19:00. This hourly data clearly illustrates the importance of being cautious and applying sunscreen, especially during the peak hours of 12:00 to 15:00, when UV exposure is at its highest.
| 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 | 3 | moderate | 30 min |
| 13:00 | 3 | moderate | 30 min |
| 14:00 | 3 | 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 |
The UV Index displays significant seasonal variations, with extreme levels observed from January through February and again in November and December, where burn times are as short as 10 minutes. High-risk months for UV exposure include January, February, November, and December, where advisories for protection are critical. As temperatures rise, the UV Index decreases slightly into moderate levels from May through July, but very high levels return in March and April, as well as September and October, with respective burn times around 15 to 30 minutes. Visitors and residents are advised to take protective measures during these high-risk months, including wearing sunscreen, protective clothing, and sunglasses, particularly when the index is rated high or extreme to minimize the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Martin de los Andes | 15 | 13 | 10 | 6 | 5 | 3 | 3 | 6 | 8 | 10 | 13 | 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 |