Last updated: July 2, 2025
Awareness of the UV Index in Veinticinco de Mayo, Argentina, is crucial for ensuring skin health and preventing sunburn. Understanding UV levels is essential not just for enjoying the outdoors safely, but also for reducing the long-term risks associated with sun exposure. With a semi-arid climate (BSk) that can lead to peak UV levels reaching 3 during midday, it’s important for residents and visitors alike to remain vigilant about sun protection strategies. By staying informed about the UV Index and taking proper precautions, you can fully enjoy the warm Argentine sun without compromising your skin health.
The UV Index for the day presents a dynamic pattern that peaks in the midday sun. Starting from 07:00, the index remains at a safe 0, gradually increasing to 1 by 09:00 and reaching 2 by 11:00. As noon approaches, the UV Index hits its peak at 3 from 12:00 to 15:00, suggesting that solar protection is essential during these hours. After that, it begins to decline, dropping back to 1 by 17:00 and returning to 0 by 19:00. This hourly data clearly illustrates the importance of being cautious and applying sunscreen, especially during the peak hours of 12:00 to 15:00, when UV 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 | 1 | low | 45 min |
| 11:00 | 2 | low | 45 min |
| 12:00 | 3 | moderate | 30 min |
| 13:00 | 3 | 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 UV Index demonstrates significant seasonal changes, with January and December marking the highest levels at 14, categorized as extreme and requiring just 10 minutes for potential skin burn. February and November follow closely with a UV Index of 13. March sees a notable drop to 10, remaining in the very high category with a burn time of 15 minutes. As spring approaches, April and September exhibit high levels of UV radiation at 7, with longer burn times of 25 minutes. The summer months of May, June, July, and August present moderate risks, with UV indices ranging from 4 to 5 and burn times extending to 30 minutes. As temperatures drop in October, the index climbs back to 10, reminding us of the transitioning risks. Given these fluctuations, visitors and residents are advised to prioritize sun protection, particularly from November through March, and to stay aware of changing UV levels throughout the year to safeguard their skin against harmful effects.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Veinticinco de Mayo | 14 | 13 | 10 | 7 | 4 | 3 | 3 | 5 | 7 | 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 |