Last updated: July 2, 2025
Understanding the UV Index in Seongnam-si, South Korea, is crucial for protecting your skin and maintaining overall health. The UV Index serves as a valuable indicator of potential sun exposure levels throughout the day, with peak readings reaching an intense 11 during midday hours. By being aware of these UV levels, residents can take necessary precautions to prevent sunburn and long-term skin damage. Nestled in a Dwa climate zone, Seongnam-si experiences distinct seasonal changes, leading to varying UV exposure risks. Whether enjoying outdoor activities or simply soaking up the sun, staying informed about the UV Index helps ensure a safer, healthier experience in this vibrant city.
The UV Index today paints a vivid picture of the sun's intensity, peaking sharply at 11 between 12:00 PM and 1:00 PM — a clear sign to seek shade and protect your skin. The morning starts off gently, with values climbing from a pleasant 1 at 7:00 AM to a moderate 5 by 9:00 AM. As the clock strikes 10:00 AM, the intensity ramps up to 7, making it crucial to apply sunscreen for those planning outdoor activities. After hitting the peak, the UV levels begin to taper off, dropping to 7 at 3:00 PM, then sliding to 5 by 4:00 PM. The evening brings relief as values return to a safe 1 by 6:00 PM, ushering in a cool respite from the sun's powerful rays. Enjoy the sunlight, but stay safe!
| 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 | 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 | 7 | high | 25 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 index levels fluctuate significantly, with the most intense exposure occurring during the summer months. High-risk months for UV exposure are from April to August, particularly peaking in July and August with an extreme UV Index of 11, resulting in a burn time of only 10 minutes. As we transition from spring into summer, residents and visitors should be particularly vigilant, using sunscreen, wearing protective clothing, and seeking shade to minimize the risk of sunburn and long-term skin damage. In contrast, the winter months (January, February, November, and December) feature a moderate UV exposure, allowing for safer sun enjoyment, but caution is still advised, especially during midday hours. Remember, even on cloudy or cooler days, UV rays can cause harm, so take the necessary precautions year-round.
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 |
| Seongnam-si | 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 |