Last updated: June 2, 2025
Understanding the UV Index in Seosan, South Korea, is crucial for protecting your skin and overall health. With peak UV levels reaching as high as 10 around midday, awareness is essential for preventing sunburn and minimizing long-term skin damage. Seosan’s Cfa climate brings warm summers that increase exposure risks, especially from late morning to early afternoon. By staying informed about daily UV conditions, residents can enjoy the outdoors safely while safeguarding their skin against harmful rays.
At the break of dawn, the UV Index begins at a low of 1 at 7:00 AM, inviting early risers to enjoy the cool morning air. As the sun climbs higher, the intensity increases, peaking at 10 between 12:00 PM and 1:00 PM—the perfect time to seek shade and protect your skin. The afternoon sees a slight decline, with values dropping to 9 at 2:00 PM and easing down to 5 by 4:00 PM. As evening approaches, the UV levels taper off to 3 at 5:00 PM and return to a safe 1 by 7:00 PM, signaling a gentle close to the sun-soaked day. Remember, during peak hours, it’s crucial to step up your sun protection game!
| 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 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 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 |
Throughout the year, the UV Index exhibits notable seasonal changes, with the highest levels occurring during the summer months. January and February show a moderate UV Index of 3 and 4 respectively, allowing 30 minutes of safe sun exposure. As spring approaches, values rise significantly, peaking in April and May at a very high index of 8 and 9, respectively, where burn time reduces to just 15 minutes. The extreme UV Index of 11 in July and August demands even greater caution, as burn time drops to 10 minutes. As autumn arrives, the index tapers off to 9 in September and 7 in October, with safe exposure times of 15 and 25 minutes, respectively. The remaining months, November and December, return to a moderate level of 5 and 3, allowing for 30 minutes of safe sun exposure. Visitors and residents should be particularly vigilant during the summer months (June through August) and wear appropriate sun protection 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 |
| Seosan | 3 | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 9 | 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 |