Last updated: May 3, 2025
In Colonia San Lorenzo, Paraguay, understanding the UV Index is crucial for safeguarding your skin and overall health. The UV Index measures the intensity of ultraviolet radiation, which can lead to sunburn and long-term skin damage if exposure is not managed properly. With a Cfa climate that boasts warm temperatures and significant sunlight, residents and visitors alike need to be vigilant about UV levels, especially during peak hours from 10 AM to 2 PM when the index reaches a maximum of 7. By staying informed and taking necessary precautions, you can enjoy the sunny days while keeping your skin healthy and protected.
As the sun rises and the day unfolds, the UV Index experiences a steady climb. Starting the day at a cool 0 at 07:00, the index rises to a modest 1 by 08:00. By 09:00, it ticks up to 2, signaling that protection is becoming more necessary. The intensity peaks sharply at 12:00 and 13:00, where it reaches its maximum level of 7, indicating a high risk of harm from unprotected sun exposure. As the afternoon sun begins to wane, the index gracefully declines, dropping to 5 at 14:00 and 4 by 15:00. The evening brings relief, with levels sinking to 2 by 16:00, further down to 1 at 17:00, and finally returning to 0 as night falls at 19:00. Protecting oneself from the sun becomes crucial during those midday hours to enjoy the beauty of the day safely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 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 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, seasonal UV changes present varying risks for sun exposure, with the highest UV Index recorded during the winter months. From January to March, the UV Index remains at an extreme level (15–13) with a critical burn time of just 10 minutes, making this period particularly hazardous for unprotected skin. As the year progresses, April sees a decrease to a very high category (UV Index 10, burn time 15 min), followed by a moderate level in June (UV Index 5, burn time 30 min). However, the risk escalates again in late summer and early fall, with August and September reaching very high levels of UV exposure once more. The final months of the year return to extreme conditions (UV Index 14), emphasizing the importance of sun protection year-round. Visitors and residents should take precautions especially during high-risk months of January to March, October, and November, by wearing sunscreen, protective clothing, and sunglasses, and seeking shade during peak hours to ward off the harmful effects of UV radiation.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Colonia San Lorenzo | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 8 | 10 | 13 | 14 | 14 |
| Lambare UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 8 | 10 | 13 | 14 | 15 |
| Capiata UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 8 | 10 | 13 | 14 | 15 |
| San Lorenzo UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 8 | 10 | 13 | 14 | 15 |
| Asuncion UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 8 | 10 | 13 | 14 | 15 |
| Ciudad del Este UVI | 15 | 15 | 13 | 10 | 7 | 5 | 6 | 8 | 10 | 13 | 15 | 14 |