Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Santa Fe, Argentina, as it plays a significant role in protecting skin health and preventing sunburn. With its Cfa climate, characterized by warm summers and moderate humidity, Santa Fe experiences varying UV exposure throughout the day, peaking at a significant UV Index of 5 during midday hours. By staying informed about UV levels, you can take proactive measures to shield your skin from harmful rays and enjoy the sun safely. Don't underestimate the importance of UV awareness – it’s key to enjoying Santa Fe's beautiful outdoor lifestyle while keeping your skin healthy!
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 |
The UV Index shows significant seasonal changes, with high-risk months occurring from January through March and again in October to December, all categorized as extreme with a burn time of just 10 minutes. April marks a transition to a very high exposure category, where burn time extends to 15 minutes, while May to August presents high to moderate conditions with burn times ranging from 25 to 30 minutes. As temperatures rise into summer, UV risks decrease slightly; however, September spikes again to very high levels. Visitors and residents are advised to take precautions during the high UV index months, which can include wearing protective clothing, using sunscreen, and seeking shade, particularly during peak hours to minimize the risk of skin damage.
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 |
| Santa Fe | 14 | 13 | 11 | 8 | 6 | 4 | 5 | 6 | 9 | 11 | 14 | 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 |