Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Alvear, Argentina, particularly in a region characterized by a Cfa climate, which brings warm summers and ample sun exposure. Awareness of UV levels plays a vital role in preventing sunburn and safeguarding skin health, as even minimal exposure can lead to harmful effects over time. With peak UV levels reaching 5 during midday hours, it’s essential to stay informed about daily UV fluctuations and take protective measures to enjoy the sun safely. By keeping an eye on the UV Index, you can enhance your outdoor experience while minimizing risks associated with high sun exposure.
As the sun rises to greet the day, the UV Index begins at a serene 0 at 07:00, indicating minimal risk for sun exposure. By 08:00 and 09:00, it gently warms up to a light 1, suggesting that a little sun protection might be wise. The real shift occurs by 10:00, when the index climbs to 2, signaling a moderate level of UV radiation. The peak is reached at 12:00, with a robust 5, urging everyone to seek shade and wear sunscreen for safety. The afternoon maintains this intensity until 14:00, before tapering off to 3 at 15:00. As the day winds down, the UV levels gradually decrease to 1 by 18:00 and finally return to 0 at 19:00, marking the end of a UV-rich day. Stay smart in the sun!
| 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 | 4 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 5 | moderate | 30 min |
| 14:00 | 5 | 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 experiences significant variations throughout the year, peaking in January, February, and November with an extreme rating of 14, where unprotected skin can burn in just 10 minutes. As we transition into spring, March remains high at 12 before decreasing slightly in April to 9 but still classified as very high with a burn time of 15 minutes. The risk continues as we approach summer, particularly in September, where the UV Index again reaches 9. The months of May through August offer moderate to high exposure risks, with the most favorable burn times between 25 to 30 minutes. To ensure safety, visitors and residents are advised to take precautions during these high-risk months: wear broad-spectrum sunscreen, protective clothing, and seek shade during peak sunlight hours. Remember, even on cloudy days, UV rays can still cause harm, so vigilance is key year-round.
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 |
| Alvear | 14 | 13 | 12 | 9 | 6 | 5 | 5 | 7 | 9 | 13 | 14 | 14 |
| San Miguel de Tucuman UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 7 | 10 | 13 | 15 | 15 |