Last updated: May 3, 2025
Understanding the UV Index in Sejong, South Korea is crucial for safeguarding your skin and overall health. With peak UV levels soaring to 9 during midday hours, awareness of these fluctuations can help protect you from sunburn and long-term skin damage. The Dfa climate of Sejong typically brings warm summers, where UV exposure risks are heightened, making it essential to monitor the UV index daily. By staying informed, you can enjoy the sun responsibly while ensuring your skin remains healthy and radiant.
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, seasonal changes in UV Index reflect varying levels of sun exposure and associated burn times. The high-risk months are identified as April through August, where the UV Index reaches its peak at 11 during June, July, and August, indicating an extreme exposure category with a burn time of just 10 minutes. In contrast, the winter months of January, February, and December maintain a moderate UV Index of 3, allowing for longer exposure times of 30 minutes without immediate risk of burning. Residents and visitors are strongly advised to take necessary precautions during high UV Index months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak hours to minimize the risk of skin damage.
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 |
| Sejong | 3 | 4 | 7 | 9 | 9 | 11 | 11 | 11 | 10 | 7 | 5 | 3 |
| Daejeon UVI | 3 | 5 | 7 | 9 | 9 | 11 | 11 | 12 | 10 | 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 |