Last updated: May 3, 2025
In the picturesque town of Las Heras, Argentina, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding the daily UV levels helps residents and visitors alike to take proactive measures against sunburn and long-term skin damage, especially during the peak afternoon hours when the UV Index can reach a high of 6. Nestled in a BWk climate zone, Las Heras experiences significant sunlight exposure, making it essential to stay informed about UV risks. By keeping an eye on the UV Index, you can enjoy the beautiful outdoors while protecting yourself from harmful rays.
At dawn, the UV Index starts at a refreshing 0, making the early hours perfect for a leisurely outdoor stroll. As the sun climbs higher, it reaches 1 by 9:00 AM, gradually intensifying to a moderate 3 by late morning. The peak occurs at 12:00 PM with a strong 5, encouraging sun protection for outdoor activities. Just after noon, the UV Index peaks at 6 at 1:00 PM, signaling the need for sunscreen and shaded areas. The afternoon sees a slight decline, leveling off at 5 and then dropping to 4 by 3:00 PM. As the sun begins to set, the UV Index dips to 1 by 5:00 PM, and finally returns to 0 by 7:00 PM, making way for a peaceful evening. Enjoy the sun, but don’t forget your protection during those high UVI 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 | 2 | low | 45 min |
| 11:00 | 3 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
During the year, the UV Index experiences significant fluctuations, peaking in the winter months of January, February, and December with an extreme index of 15, indicating a rapid potential for skin damage with a burn time of just 10 minutes. The transition to spring brings a gradual decline, with March maintaining an extreme rating of 12 before dropping to 8 in April, categorized as very high. As summer approaches, the risk decreases slightly, with June and July recorded at 4 and 5, respectively, both considered moderate, allowing for longer exposure times of 30 minutes. However, caution is advised during August and September when the index rises again to 6 and 9, respectively, with high and very high ratings. The season closes with another spike in UV levels in October and November, returning to an extreme category. Residents and visitors should remain vigilant, especially from January to March and again in October to November, taking necessary precautions such as wearing sunscreen, protective clothing, and limiting sun exposure during peak hours to mitigate the risk of UV-related health issues.
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 |
| Las Heras | 15 | 14 | 12 | 8 | 6 | 4 | 5 | 6 | 9 | 12 | 14 | 15 |
| 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 |