Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Haitang, China, where the subtropical climate often brings intense sunlight. By being mindful of UV levels, you can effectively protect your skin from sunburn and long-term damage, fostering better skin health. In Haitang, the UV Index can peak at a daunting 12 during midday hours, presenting significant risks for overexposure. With typical sunny days, it's essential to equip yourself with knowledge about the UV Index to enjoy the outdoors safely while safeguarding your skin from harmful rays.
The UV Index reveals a fascinating journey through the day, peaking dramatically as the sun reaches its zenith. Starting off with a mild index of 1 at 07:00, it gradually climbs, reaching 2 by 08:00. As the morning unfolds, the intensity surges, with a notable jump to 4 at 09:00, and skyrocketing to a striking 11 by 12:00. The highest level of 12 is recorded at 13:00, indicating the critical hour for sun exposure, before a gradual decline begins. By 14:00, it dips to 10, followed by a steady drop to 8 at 15:00, and continues to decrease into the evening. The UV Index settles back down to 1 by 18:00, tapering off into the night. It's a stark reminder of the sun's powerful influence, emphasizing the importance of sun safety during peak hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | 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 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations that highlight the importance of sun safety, particularly during the high-risk months from March to September. During this period, the UV Index reaches its peak, with values of 8 to 12, categorizing exposure levels as very high to extreme. The most critical months are May, June, July, and August, where the burn time drops to just 10 minutes, necessitating vigilant sun protection. As winter approaches, the UV Index decreases to moderate levels in January and December, reflecting a safer environment for outdoor activities. Visitors and residents should be advised to take precautions during peak UV times, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, particularly between 10 a.m. and 4 p.m. to minimize the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beijing UVI | 2 | 3 | 5 | 8 | 9 | 9 | 10 | 9 | 7 | 6 | 4 | 2 |
| Chengdu UVI | 5 | 6 | 8 | 10 | 12 | 11 | 11 | 10 | 11 | 8 | 6 | 4 |
| Shanghai UVI | 5 | 6 | 8 | 10 | 10 | 11 | 12 | 11 | 11 | 8 | 6 | 4 |
| Haitang | 5 | 6 | 8 | 10 | 11 | 12 | 12 | 12 | 11 | 9 | 6 | 4 |
| Guangzhou UVI | 7 | 9 | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 10 | 9 | 7 |
| Shenzhen UVI | 7 | 10 | 12 | 12 | 14 | 13 | 13 | 13 | 12 | 11 | 9 | 7 |