Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Yongan, South Korea, as it serves as a guide to sun safety and skin health. With the region’s humid subtropical climate (Cfa) bringing warm summers and ample sunshine, residents face varying levels of UV exposure throughout the day. Knowing the daily UV levels not only helps in preventing sunburn but also protects against long-term skin damage. During peak hours, especially from 11 AM to 1 PM, Yongan experiences a significant UV Index rise—reaching levels of 8 to 9—making awareness and precaution essential for enjoying outdoor activities safely.
As the sun rises on this radiant day, the UV Index starts off modestly, peaking at 1 by 7:00 AM. However, excitement builds as the hours pass, with the index climbing to 2 by 8:00 AM and reaching a moderate 4 by 9:00 AM. The sun reaches its zenith, delivering its strongest rays between 11:00 AM and 1:00 PM, where the UV Index hits a maximum of 9. This intense exposure prompts caution for sun-seekers, as it signals a potentially harmful environment for unprotected skin. Gradually, the index begins to decline, dropping to 6 by 3:00 PM and easing into a gentle 1 by evening, inviting a serene close to the day. Remember to wear appropriate sun protection during peak hours for safety and enjoyment!
| 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 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV levels fluctuate significantly, with the highest risk months being June, July, and August, where the UV Index reaches extreme levels of 11 to 12 and burn times decrease to just 10 minutes. April and May also show very high UV levels of 9, which correspond to shorter burn times of 15 minutes. In contrast, the winter months (January, February, and December) exhibit moderate UV exposure, with burn times extending to 30 minutes. It is crucial for visitors and residents to take precautions during high-risk months by seeking shade, wearing protective clothing, and applying sunscreen regularly, especially during midday hours when UV exposure is at its peak.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Incheon UVI | 3 | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 9 | 6 | 4 | 3 |
| Seoul UVI | 3 | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 9 | 6 | 4 | 3 |
| Daejeon UVI | 3 | 5 | 7 | 9 | 9 | 11 | 11 | 12 | 10 | 7 | 5 | 3 |
| Yongan | 3 | 5 | 7 | 9 | 9 | 11 | 11 | 12 | 9 | 7 | 5 | 3 |
| Daegu UVI | 3 | 5 | 7 | 10 | 10 | 11 | 12 | 12 | 10 | 7 | 5 | 3 |
| Busan UVI | 4 | 5 | 7 | 10 | 10 | 11 | 12 | 12 | 10 | 7 | 5 | 3 |