Last updated: May 3, 2025
In Muan, South Korea, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels helps residents and visitors alike protect themselves from harmful ultraviolet radiation, especially during the peak hours of sunlight when exposure risks are highest. With a Cfa climate, Muan experiences warm summers and moderate UV intensity, peaking at a UV Index of 9 around midday. Staying informed about daily UV exposure can empower everyone to enjoy the beautiful outdoors while safeguarding their skin from damage.
As the sun rises, the UV Index begins its ascent, peaking at an intense 9 between 11:00 AM and 1:00 PM—a clear indication to take extra precaution against harmful rays. Starting the day at a gentle 1 at 7:00 AM, it briefly escalates to 3 by 8:00 AM. By 10:00 AM, the intensity spikes to a 7, urging outdoor enthusiasts to seek shade as midday approaches. After its zenith, the UVI gradually declines, dropping to 6 at 3:00 PM and further to 1 by 6:00 PM, painting a picture of changing sunlight but with lingering rays until dusk. Stay safe and protect your skin during these peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | 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 |
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 |
| Muan | 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 |