Last updated: July 2, 2025
Understanding the UV Index is crucial for the residents of Las Heras, Argentina, as it plays a vital role in safeguarding skin health and preventing sunburn. With the region's semi-arid climate (BSk), UV levels can fluctuate significantly throughout the day, presenting varying risks for outdoor activities. By keeping an eye on the UV Index, you can make informed decisions about sun protection, ensuring your skin remains safe while enjoying the beautiful landscapes of Las Heras. Awareness of UV exposure not only enhances your outdoor experiences but also contributes to long-term skin wellness in this sun-drenched locale.
The UV Index for the day showcases a gradual rise as the sun climbs higher in the sky. From 07:00 to 08:00, the index remains at 0, indicating minimal risk. As the clock ticks towards 09:00, it starts to inch up to 1, where it stays consistent until 11:00. The midday sun brings a bit more intensity, peaking at 2 from 12:00 to 15:00, suggesting a moderate risk of harm from unprotected sun exposure. After 15:00, the UV Index begins to decline, settling back to 1 by 16:00 and dropping to 0 again by 19:00. To enjoy the sun safely, it’s wise to stay protected during those peak hours!
| 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 | 2 | low | 45 min |
| 13:00 | 2 | low | 45 min |
| 14:00 | 2 | low | 45 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, UV Index levels experience significant fluctuations, with January and February marking the high-risk months for sun exposure, both classified as extreme with an index of 13 and 11, respectively, and a quick burn time of just 10 minutes. As we move into March, the index lowers slightly to 8 (very high), with a burn time of 15 minutes. Notably, April and May enter a moderate exposure category, where the UV Index dips to 5 and 3, allowing for safer sun time of 30 minutes. The summer months of June and July present a low risk with indices of 2, extending burn time to 45 minutes. As summer wanes into August, the risk returns to moderate with a UV Index of 4. September sees an increase to 6 (high), while October experiences a resurgence to 8 (very high). Finally, November and December wrap up the year with extreme risks again, marked by indices of 11 and 12, resulting in another 10-minute burn time. Visitors and residents are strongly advised to practice sun safety measures during the extreme months, especially by wearing protective clothing and applying sunscreen liberally, while also adjusting their sun exposure habits throughout the year based on these changing UV levels.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Las Heras | 13 | 11 | 8 | 5 | 3 | 2 | 2 | 4 | 6 | 8 | 11 | 12 |
| 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 |