Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Nueve de Julio, Argentina, where the Cfa climate brings warm summers and ample sunshine. Being aware of UV levels is essential for preventing sunburn and protecting your skin health, especially during peak hours when the index can reach a moderate level of 4 around midday. As you enjoy the outdoors, arm yourself with knowledge about UV exposure risks to ensure safe and enjoyable sun-filled days in this vibrant town.
The UV Index throughout the day reveals a steady climb, reaching its highest point of 4 at 1 PM, making it the peak hour for sun exposure. Starting off low at 0 in the early morning, the index gradually rises, hitting 2 by 11 AM and peaking at 3 during the afternoon hours of 12 PM and 2 PM. However, after 1 PM, the index begins its descent, returning to 2 by 4 PM and tapering off to 1 by 6 PM, before dropping back to 0 as the sun sets at 7 PM. This progression highlights the importance of sun safety in the midday hours when UV radiation is strongest.
| 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 | 1 | low | 45 min |
| 11:00 | 2 | low | 45 min |
| 12:00 | 3 | moderate | 30 min |
| 13:00 | 4 | moderate | 30 min |
| 14:00 | 3 | 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 seasonal UV changes indicate a significant variation throughout the year, with peak levels occurring in the winter months of January, February, and December, registering a high UV Index of 14 and classified as extreme. The high-risk months for UV exposure are from November to March, consistently showing extreme levels, where the burn time is reduced to just 10 minutes. In contrast, from April to August, the UV Index becomes more moderate, ranging from 5 to 7, allowing for extended exposure times of 25 to 30 minutes. However, September and October pose higher risks again with a UV Index reaching 8 and 10, respectively, necessitating caution with a burn time of 15 minutes. Visitors and residents are advised to take protective measures, including wearing sunscreen, hats, and UV-protective clothing, especially during the high-risk months to minimize sunburn and skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nueve de Julio | 14 | 12 | 11 | 7 | 5 | 3 | 4 | 5 | 8 | 10 | 13 | 14 |
| 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 |