Last updated: June 2, 2025
Understanding the UV Index is vital for residents of General Roca, Argentina, especially given the region's Cfa climate characterized by hot summers and mild winters. As UV levels can fluctuate significantly throughout the day—rising to a peak of 4 at midday—being aware of these levels is crucial for sunburn prevention and maintaining long-term skin health. With the sun's rays more intense during certain hours, knowing when to seek shade or apply sunscreen helps protect against potential skin damage, making UV Index awareness a key aspect of outdoor life in this vibrant city.
The UV Index throughout the day presents an engaging story of sun exposure. Starting an early morning with a minimum of 0 from 07:00 to 08:00, the Index begins to rise gently as the clock strikes 09:00, reaching 1. By 10:00, it ramps up to 2, followed by a steady climb to peak levels of 4 from 12:00 to 14:00, signaling optimal sun intensity. As the afternoon progresses, 15:00 sees a slight dip to 3, before tapering off in the late hours, returning to 1 by 17:00 and settling at 0 from 18:00 onwards. This fluctuation highlights the need for sun protection, especially during midday when the risk for skin 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 | 2 | low | 45 min |
| 11:00 | 3 | moderate | 30 min |
| 12:00 | 4 | moderate | 30 min |
| 13:00 | 4 | 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 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV index levels fluctuate significantly, indicating periods of heightened sun exposure risk. January, February, March, October, November, and December are the high-risk months, with extreme UV levels (UV Index 14-11) and rapid burn times as short as 10 minutes. In contrast, during April and September, the UV index drops slightly to 8, falling into the very high category, requiring vigilance with a burn time of 15 minutes. The summer months of May, June, and July see a moderate UV index, allowing for safer exposure of 30 minutes, while August experiences a transition to a high risk level with a UV index of 6. It is crucial for both visitors and residents to take appropriate sun safety measures during these high UV index periods, including wearing sunscreen, protective clothing, and seeking shade during peak hours.
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 |
| General Roca | 14 | 13 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 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 |