Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Lautaro, Chile, where the unique Cfb climate—featuring mild summers and cool winters—can still pose significant sun exposure risks. With UV levels peaking in the early afternoon and reaching as high as 4, it’s essential to be aware of sun exposure to prevent sunburn and protect your skin health. Being informed about the varying UV Index throughout the day helps you make informed choices, ensuring you enjoy the outdoors safely while safeguarding your well-being.
The UV Index today starts low, with maximum values reaching 0 by 7:00 AM. As the sun rises, it gradually climbs to 1 at 8:00 AM and stays steady until 9:00 AM. By 10:00 AM, the index jumps to 2, marking the onset of more direct sunlight. The UV exposure peaks at 4 from 12:00 PM to 14:00 PM, signaling a critical time for sun protection. Following this peak, it dips back to 2 at 15:00 PM before easing further to 1 by 16:00 PM. Finally, the day wraps up with 0 UV exposure by 19:00 PM, making the late afternoon a much safer time for outdoor activities. Don't forget to apply sunscreen during the midday hours!
| 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 | 3 | moderate | 30 min |
| 12:00 | 4 | moderate | 30 min |
| 13:00 | 4 | moderate | 30 min |
| 14:00 | 4 | moderate | 30 min |
| 15:00 | 2 | 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 |
Throughout the year, UV Index values demonstrate significant seasonal changes, with the highest risks occurring during winter months. January and December register an extreme UV Index of 14, indicating a burn time of just 10 minutes. February follows closely with a UV Index of 13. The transition into spring sees a decrease, with March's Index at 10 (very high, 15 min), but as we move to April and May, values drop to 6 (high) and 4 (moderate) respectively. The summer months of June, July, and August present a moderate UV Index, ranging from 3 to 5 with a burn time of 30 minutes. In the fall, September and October see the UV Index rise again, peaking at 7 (high) in September and returning to 10 (very high) in October. November also returns to an extreme level with a UV Index of 12. Visitors and residents are advised to take special care during the high-risk months of January, February, March, November, and December, ensuring proper sun protection measures such as wearing sunscreen, hats, and protective clothing when exposed to sunlight, especially during peak hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lautaro | 14 | 13 | 10 | 6 | 4 | 3 | 3 | 5 | 7 | 10 | 12 | 14 |
| Santiago UVI | 14 | 12 | 11 | 7 | 5 | 3 | 4 | 6 | 8 | 11 | 12 | 14 |
| Valparaiso UVI | 14 | 12 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 12 | 14 |
| Vina del Mar UVI | 14 | 12 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 12 | 14 |
| Puente Alto UVI | 15 | 14 | 12 | 8 | 6 | 4 | 6 | 8 | 11 | 12 | 14 | 15 |
| Antofagasta UVI | 15 | 15 | 13 | 10 | 8 | 6 | 7 | 9 | 11 | 14 | 15 | 15 |