Last updated: July 2, 2025
Awareness of the UV Index is crucial for residents and visitors in Bella Vista, Argentina, where the climate offers vibrant, sunny days but also presents significant UV exposure risks. Understanding UV levels is vital for effective sunburn prevention and maintaining long-term skin health. With maximum UV Index readings peaking at 5 during midday hours, it's essential to take precautions, as prolonged exposure can lead to skin damage. Bella Vista's humid subtropical climate (Cfa) amplifies these risks, particularly in summer, making it imperative to stay informed and protect your skin while enjoying the outdoors.
The UV Index today paints a picture of fluctuating sun intensity as the day progresses. Starting at a low of 0 at 07:00, the index gently climbs to 1 by 08:00 and remains steady at 1 until 09:00. The real surge occurs around 10:00, spiking to 2, and then reaching its peak of 5 by 12:00, where it holds firm until 14:00. As the afternoon wanes, the index begins to dip, falling to 4 by 15:00 before decreasing further to 2 at 16:00. By the time evening rolls in, safety returns with levels at 1 by 17:00 and dropping back to 0 by 19:00. Enjoy the sunshine but be mindful of those peak hours where UV exposure is significant!
| 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 | 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 |
Throughout the year, the UV Index demonstrates significant seasonal changes that highlight various periods of risk for sun exposure. The highest UV readings occur from January to March, with indices peaking at 15, indicating an extreme risk level and a dangerous burn time of only 10 minutes. Following these months, April presents a slight decrease to 10, categorized as very high, while May and June see a further reduction to 6 and 5, respectively, entering into the high and moderate categories. However, September experiences another spike with a UV Index of 10 before the high-risk months return in October and November, both with extreme levels of 14. To ensure safety, it is advisable for residents and visitors to take precautions during the extreme and very high months, especially from January to March and again in October and November, by wearing appropriate clothing, using sunscreen, and limiting direct sun exposure 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 |
| 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 |
| Bella Vista | 15 | 14 | 12 | 10 | 6 | 5 | 5 | 7 | 10 | 12 | 14 | 14 |
| San Miguel de Tucuman UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 7 | 10 | 13 | 15 | 15 |