Last updated: July 2, 2025
Awareness of the UV Index is crucial for residents of Santa Rosa de Rio Primero, Argentina, where sunny days are the norm due to its Cfa climate. Understanding UV levels is essential for preventing sunburn and promoting long-term skin health, particularly during peak hours when the UV Index can reach moderate to high levels. With maximum values peaking at 5 around midday, it’s vital to be proactive about sun protection to mitigate the risks associated with elevated UV exposure. Stay informed and safeguard your skin while enjoying the beautiful Argentinian sun!
The UV Index began its day at 0 from 7:00 AM until 8:00 AM, providing a safe environment for early risers. As the sun climbed, a gentle increase was noticed, reaching 1 by 9:00 AM. The index picked up pace, surging to 2 at 10:00 AM, and climbing steadily to 3 by 11:00 AM. The peak of the day occurred at 12:00 PM, with a UV Index of 4, indicating moderate risk for unprotected skin. This was followed by a slight decline, as the index dropped to 5 by 1:00 PM, before falling back to 4 at 2:00 PM. The afternoon saw a gradual decrease, with readings at 3 at 3:00 PM, 2 at 4:00 PM, and tapering off to 1 from 5:00 PM until the sun set at 7:00 PM, where it returned to 0. Overall, a day that started safe became moderately risky during peak hours under the strong midday sun!
| 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 | 2 | low | 45 min |
| 11:00 | 3 | moderate | 30 min |
| 12:00 | 4 | moderate | 30 min |
| 13:00 | 5 | moderate | 30 min |
| 14:00 | 4 | 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 changes, with January, February, March, October, November, and December representing high-risk months with extreme UV exposure (UV Index 14 to 12), where the recommended burn time is just 10 minutes. Conversely, April and September reach very high levels (UV Index 9), allowing for slightly longer exposure at 15 minutes. During the height of summer, May through July, UV exposure decreases from high to moderate categories (UV Index 6 to 4), with burn times extending to 25 and 30 minutes, respectively. For those visiting or residing in regions prone to high UV radiation, it is crucial to take precautions, especially during the extreme months, such as wearing sunscreen, protective clothing, and sunglasses, and seeking shade whenever possible to minimize skin damage.
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 |
| Santa Rosa de Rio Primero | 14 | 13 | 12 | 9 | 6 | 4 | 5 | 7 | 9 | 12 | 14 | 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 |