Last updated: July 2, 2025
In Sierra Grande, Argentina, being aware of the UV Index is crucial for both residents and visitors alike. Understanding UV levels helps in preventing sunburn, reducing the risk of long-term skin damage, and promoting overall skin health. With its semi-arid climate (BSk), Sierra Grande experiences unique UV exposure risks, especially during the peak hours of sunlight. On a typical day, UV levels can reach up to 3 between 1 PM and 3 PM, highlighting the need for effective sun protection measures. Stay informed and safeguard your skin against the sun's harmful rays!
Today's UV Index began quite low in the early morning, with 0 at both 07:00 and 08:00. It gradually rose as the sun climbed higher, reaching 1 by 09:00 and 10:00. The index peaked at 3 from 13:00 to 14:00, signaling a moderate risk for harm from unprotected sun exposure. As the afternoon waned, the UV Index dropped back to 2 at 15:00, then gently declined to 1 from 16:00 to 18:00. Finally, as twilight approached, it returned to 0 by 19:00. Remember to stay sun-smart during the peak hours!
| 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 | 2 | low | 45 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 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences significant seasonal fluctuations, with the highest values occurring during the winter months. January and December record extreme UV levels of 13, necessitating an average burn time of just 10 minutes. February follows closely with a UV Index of 12. Spring begins to see a slight decline, with March at 9 (very high) and April at 6 (high), though caution is still advised. As we move into summer, the UV Index lowers to 4 in May and August (moderate), and 2 in June (low), which are relatively safer months. However, July remains moderate at 3. As fall approaches, UV levels increase again, with September at 6 and October reverting to 9 (very high). November returns to extreme UV exposure at 12. Given this data, it is crucial that visitors and residents remain vigilant, especially during high-risk months (January, February, November, and December), and take protective measures such as wearing sunscreen and protective clothing when the UV Index is high, particularly during those extreme months.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sierra Grande | 13 | 12 | 9 | 6 | 4 | 2 | 3 | 4 | 6 | 9 | 12 | 13 |
| 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 |