Last updated: July 2, 2025
Understanding the UV Index in Kyosai, South Korea is essential for protecting your skin and maintaining overall health. As UV radiation levels can soar during the peak hours of the day—reaching a maximum of 12 around noon—awareness is crucial for sunburn prevention and reducing the risk of long-term skin damage. In this Cfa climate zone, where temperatures can vary, the potential for high UV exposure remains a concern throughout the summer months. By keeping a close eye on the UV Index, residents and visitors can enjoy the outdoors safely while safeguarding their skin health. Stay informed and take proactive steps to protect yourself against harmful UV rays!
The UV Index today tells a striking story of the sun's intensity as the day unfolds. Starting at 07:00, the index peaks at a gentle 1, perfect for an early morning stroll. As the sun rises higher, a noticeable increase occurs, reaching 3 by 08:00 and then surging to a robust 5 at 09:00. By 10:00, the index hits 8, and it truly shifts into high gear at 11:00, peaking at an impressive 10. The zenith arrives with an intense 12 at 12:00 and holds steady, emphasizing the need for sun protection. As afternoon rolls in, a gradual decline begins, slipping to 10 at 14:00, then tapering off to 8 by 15:00 and 5 at 16:00. By the evening, the UV threat diminishes significantly to 2 at 17:00 and is back down to 1 by 19:00. Remember to stay sun-safe during the midday hours when the UV index is at its highest!
| 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 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal changes, with high-risk months primarily occurring from March to September. During these months, UV levels climb sharply, peaking at an extreme 12 in July and August, where the burn time is reduced to just 10 minutes. As summer transitions to fall, UV exposure slightly declines but remains notable, hitting 10 in April, May, and September, with burn times of only 15 minutes. Visitors and residents are strongly advised to take precautions during these high-risk months by wearing sunscreen, protective clothing, and sunglasses, particularly during midday when the sun's rays are most intense. From late fall through winter, while the UV Index drops to moderate levels (3-5), it's still important to remain cautious, especially if spending extended time outdoors.
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 |
| 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 |
| Kyosai | 4 | 5 | 7 | 10 | 10 | 11 | 12 | 12 | 10 | 7 | 5 | 3 |