Last updated: May 3, 2025
In Trelew, Argentina, understanding the UV Index is essential for maintaining skin health and preventing sunburn. With its BSk climate characterized by dry conditions and clear skies, residents and visitors face notable UV exposure, especially during midday hours. As the UV levels peak at 3 around noon, being aware of these fluctuations can help protect against harmful effects of ultraviolet radiation. Stay informed and embrace sun safety to enjoy the beautiful Trelew landscape while keeping your skin safe!
The UV Index for the day showcases a gradual rise in solar intensity as morning unfolds. From 7:00 AM to 9:00 AM, the index remains at a low 0, indicating minimal risk from UV rays. As the day progresses, it reaches 1 by 10:00 AM and climbs to a moderate 3 between 12:00 PM and 14:00 PM, marking the peak UV exposure hours. In the late afternoon, the intensity begins to decline, dropping to 1 by 15:00 PM and tapering off to 0 by 19:00 PM. To ensure safety and enjoy the sun responsibly, it's best to seek shade or wear protective clothing during the peak hours of 12:00 PM to 14:00 PM.
| 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 | 2 | low | 45 min |
| 16:00 | 1 | 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 reveals significant seasonal variations, with January and December typically experiencing the highest levels at 13, categorized as extreme, resulting in a rapid burn time of just 10 minutes. This trend continues into February and November, which also present extreme risk, necessitating caution. The spring months of March and October see a decrease to 8, categorized as very high, allowing for slightly longer exposure times of 15 minutes. As summer approaches, UV levels drop in June and July to a low rating of 2, providing a safer environment for outdoor activities; however, caution should still be practiced. The fall brings a return to moderate (August) and high (September) exposure levels, with burn times ranging from 25 to 30 minutes. Visitors and residents should remain vigilant during high-risk months—especially from January to February and November—by utilizing sunscreen, protective clothing, and seeking shade to minimize UV exposure. Stay safe and enjoy your time outdoors!
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Trelew | 13 | 11 | 8 | 5 | 3 | 2 | 2 | 4 | 6 | 8 | 12 | 13 |
| 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 |