Last updated: August 1, 2025
Understanding the UV Index in Hongnong, South Korea is vital for ensuring your skin health and preventing sunburns throughout the year. With a Cfa climate, Hongnong experiences diverse weather patterns, making UV radiation levels fluctuate significantly. Peak exposure can reach an alarming 12 between noon and 1 PM, underscoring the importance of being aware of UV levels to protect yourself from harmful effects. Whether you’re planning a day outdoors or enjoying the beautiful scenery, staying informed about the UV Index helps you enjoy the sun safely and keeps your skin in optimal condition.
The UV Index today paints a vibrant picture of sun intensity, starting from a gentle 1 at 07:00 and reaching its peak at 12:00 with a striking 12. The morning hours see a gradual rise, with 09:00 climbing to a moderate 5 and 10:00 bringing it up to 8. As the sun reaches its zenith, the intensity escalates sharply to 10 by 11:00 and holds steady at 12 from 12:00 to 13:00. The afternoon sun begins to mellow after 14:00, dipping down to 10 and further declining to 8 by 15:00. As the day transitions into the evening, the UV Index gently recedes, returning to a mild 3 by 17:00, and finishing with a soft 1 from 18:00 onward. It's crucial to keep aware of these fluctuations to safeguard against overexposure!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | 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, UV exposure varies significantly, with the highest risks typically occurring in the summer months. Notably, June, July, and August see the peak UV Index at 11 to 12, classified as extreme, with a burn time of just 10 minutes. The spring months, particularly April and May, also present considerable risk with a UV Index of 9 (very high), requiring careful sun protection for 15 minutes of exposure. As autumn approaches, the UV Index decreases, with September still maintaining a 10 (very high) rating before dropping to moderate levels in November and December (UV Index 3-5). Residents and visitors are advised to take appropriate precautions during the high-risk months from March through September, including wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours to minimize the risk of sunburn and harmful UV exposure.
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 |
| Hongnong | 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 |