Last updated: May 3, 2025
In the stunning landscapes of Ushuaia, Argentina, awareness of the UV Index is essential for maintaining skin health and preventing sunburn. As this southernmost city experiences unique climatic conditions, understanding UV levels becomes crucial, especially during peak sunlight hours. With relatively low UV exposure, peaking at 2 around midday, Ushuaia offers a welcome reprieve, but residents and visitors should remain vigilant. Protecting your skin not only enhances your outdoor experience but also safeguards against long-term damage, making UV Index awareness a vital aspect of enjoying the beauty of this remarkable region.
The UV Index for the day shows a gradual increase in intensity as the sun climbs, reaching its peak at 1 around 13:00. Starting from 07:00 to 08:00, the index remains at a comfortable 0, indicating minimal risk. As the morning progresses, it slowly rises to 1 by 09:00, maintaining this level until 12:00. After noon, there's a slight uptick to 2 at 13:00, presenting a moderate level of sun exposure. However, it quickly dips back to 1 from 14:00 to 17:00 before sunset, where the index falls back to 0 by 18:00 and remains low through the evening. This data suggests a safe outdoor experience throughout the day, especially during the earlier hours, but with a noticeable peak around midday. Don't forget your sunscreen! 🌞
| 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 | 1 | low | 45 min |
| 12:00 | 1 | low | 45 min |
| 13:00 | 2 | low | 45 min |
| 14:00 | 1 | low | 45 min |
| 15:00 | 1 | low | 45 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index fluctuates significantly throughout the year, displaying the highest levels during the winter months and late in the year. January and February feature very high UV levels (10 and 8, respectively), with a burn time of only 15 minutes, presenting a high risk for sunburn. Following this, March sees a slight decline to a high category (6), while April and May drop to moderate and low levels (3 and 2, respectively), allowing for longer safe exposure times of 30 and 45 minutes. The summer months (June and July) remain in the low risk category (1), maintaining a burn time of 45 minutes. However, as the year approaches its end, August and September return to moderate levels (3 and 5), before escalating sharply again by November and December, registering extreme UV indexes of 12 and 11 with a burn time reduced to 10 minutes. Visitors and residents should prioritize sun safety during the high-risk months of November and December, as well as January and February, by wearing protective clothing and using sunscreen, while also remaining mindful of the UV levels during spring and summer for balanced sun exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ushuaia | 10 | 8 | 6 | 3 | 2 | 1 | 1 | 3 | 5 | 10 | 12 | 11 |
| 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 |