Last updated: July 2, 2025
Understanding the UV Index in Daesan, South Korea is crucial for protecting your skin and maintaining overall health. With its Cfa climate characterized by hot summers, residents and visitors alike should be aware of the fluctuating UV levels throughout the day. During peak hours, especially between 11:00 AM and 1:00 PM, the UV Index can soar to a dangerous 12, indicating a very high risk of harm from unprotected sun exposure. By staying informed about these levels, you can take proactive measures to prevent sunburn and long-term skin damage, ensuring you enjoy the beautiful outdoors safely. Don't underestimate the power of the sun—knowledge is your best defense!
The UV Index varies significantly throughout the day, peaking from 12:00 PM to 1:00 PM with a striking 12. Early morning starts off mild, reaching a maximum of 1 at 7:00 AM before climbing through the hours. At 9:00 AM, it hits 5, and by 10:00 AM, it intensifies to 8. The sun's intensity continues to rise, attaining its highest points at 11:00 AM and 12:00 PM, with the index hitting 10 and 12, respectively. As the afternoon progresses, a gradual decline begins; by 3:00 PM, it dips to 8, then further to 5 at 4:00 PM. The UV Index settles back down to 3 by 5:00 PM and returns to 1 as evening approaches, illustrating the importance of sun protection, particularly during the peak hours of midday.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal variation, with the highest levels typically occurring during the summer months. From June to August, the UV Index reaches extreme levels of 11 to 12, necessitating minimal sun exposure times of only 10 minutes to prevent skin damage. High-risk months include April through September, where indices range from high to extreme, particularly in April and May with values of 9, and peaking in July. Residents and visitors are strongly advised to wear protective clothing, apply broad-spectrum sunscreen, and seek shade during peak sunlight hours, especially in these high-risk months, to safeguard against harmful UV radiation. In contrast, winter months such as January and December, with moderate UV levels of 3, allow for safer outdoor activities, but precautionary measures should still be taken.
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 |
| Daesan | 3 | 5 | 7 | 9 | 9 | 11 | 12 | 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 |