Last updated: July 2, 2025
In Asuncion, Paraguay, being aware of the UV Index is crucial for protecting your skin from harmful ultraviolet radiation. Understanding UV levels helps you prevent sunburn and maintain skin health, especially in this Cfa climate, where sun exposure can vary significantly throughout the day. During the peak hours from 11 AM to 2 PM, UV Index levels soar to 6—a marked risk for skin damage. By staying informed about the UV Index in Asuncion, you can enjoy the sun safely while minimizing the risks associated with high UV exposure.
The UV Index throughout the day presents a dynamic range of sun exposure, starting from a maximum of 0 at 07:00, signaling safe conditions for early risers. As the morning unfolds, it gradually climbs to 1 by 08:00 and remains stable until 09:00. The real action begins around 10:00, escalating to 3, followed by a sharp rise to 5 at 11:00. At 12:00, the peak is reached with a UV Index of 6, persisting until 14:00. Post-peak, levels decrease steadily, dipping to 4 by 15:00, and then further down to 2 at 16:00. As the day winds down, the index returns to safe levels of 1 by 17:00 and finally drops back to 0 by 19:00, marking a clear transition from peak sun intensity to evening calm. Always remember to take precautions during those midday hours when the UV Index is high!
| 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 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences significant seasonal fluctuations, with the highest levels occurring during winter months and extreme exposure categories persisting from January through March (UV Index 15 to 13, burn time of 10 minutes). April marks the transition to very high levels (UV Index 10) with a slightly longer burn time of 15 minutes, while May begins a gradual decline to high levels (UV Index 7, burn time of 25 minutes). Summer sees moderate to high UV levels in June (UV Index 5) and July (UV Index 6), before rising again in August and September to very high levels (UV Index 8 and 10, burn time of 15 minutes). As the year closes, extreme levels resurface in October and November (UV Index 13 to 14, burn time of 10 minutes). Visitors and residents are strongly advised to take precautions, such as wearing protective clothing, using sunscreen, and limiting sun exposure during high-risk months from January to March and October to November, to safeguard against the harmful effects of UV radiation.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Asuncion | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 8 | 10 | 13 | 14 | 15 |
| 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 |
| Ciudad del Este UVI | 15 | 15 | 13 | 10 | 7 | 5 | 6 | 8 | 10 | 13 | 15 | 14 |