Last updated: May 3, 2025
In Portena, Argentina, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With a Cfa climate characterized by warm summers, residents and visitors alike should be aware of the varying UV levels throughout the day, particularly peaking between 12:00 PM and 2:00 PM, when the index can reach as high as 6. By being proactive about UV awareness, you can enjoy the beautiful sunny days while protecting your skin from harmful UV radiation. Whether you're out for a leisurely stroll or participating in outdoor activities, knowing the UV Index empowers you to take the necessary precautions for your health!
The UV Index today shows a clear peak in intensity, reaching its maximum at 1 PM with a UV Index of 6—a signal for sun safety awareness. As the day unfolds, the index begins at 0 at 7 AM, slowly rising to 1 by 8 AM, then climbing steadily until it hits 5 at noon. After 1 PM, there's a gradual decline, dropping back to 4 at 3 PM, then tapering off to 1 by 5 PM and ultimately returning to 0 by 7 PM. This hourly trend suggests that the hours between 11 AM and 2 PM are crucial for protection from harmful UV rays; it's advisable to seek shade, wear protective clothing, and apply sunscreen during these peak hours. Stay safe and shield yourself!
| 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 | 6 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 4 | 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 |
| Portena | 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 |