Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in San Juan Nepomuceno, Paraguay, where the warm and humid Cfa climate often leads to elevated sun exposure levels. With the UV Index peaking at 6 during midday hours, awareness of these levels is essential for effective sunburn prevention and overall skin health. Protecting yourself from harmful UV radiation not only helps avoid painful sunburns but also reduces the long-term risk of skin damage. Embrace the sunshine responsibly by staying informed about the UV Index, ensuring your outdoor activities remain safe and enjoyable in this vibrant Paraguayan town!
The UV Index throughout the day presents a dynamic picture of sun exposure. Early hours from 07:00 to 08:00 are marked by a low index of 1, making sun protection minimal. However, as the day unfolds, the intensity rises sharply; by 09:00, it reaches 3, climbing to a peak of 6 at both 11:00 and 12:00. During this time, it's crucial to take precautions against harmful rays. As the afternoon progresses, the UV Index gradually declines, dropping to 5 at 13:00 and further to 4 by 14:00. By late afternoon, the levels fall to 2 at 15:00 and drop to 1 by 16:00, and the sun's strength wanes completely after 18:00, where it dips to 0. Plan your outdoor activities wisely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 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, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Juan Nepomuceno | 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 |