Last updated: June 2, 2025
In Machang, China, understanding the UV Index is crucial for protecting your skin from harmful sun exposure. With UV levels peaking at a high of 10 around midday, awareness of these levels can help residents and visitors prevent sunburn and maintain healthy skin throughout the year. The city's Cwa climate brings distinct seasonal variations, but the potential for intense UV radiation remains a consistent risk during sunny days. By keeping an eye on the UV Index, you can enjoy the vibrant outdoors while safeguarding your skin's health.
The UV Index at dawn starts off low, peaking at a moderate 2 by 7:00 AM. As the sun rises higher, the intensity escalates quickly, reaching a noteworthy 10 from 11:00 AM to 1:00 PM—a time when protection against UV rays is essential. The intensity begins to wane in the afternoon, dipping to 8 at 2:00 PM, then falling to 5 by 3:00 PM, and continuing its decline through the evening. By the time the day closes, the UV Index settles back down to a safe 1 by 5:00 PM, where it remains until dusk. It's a day to appreciate the sun, but don't forget that midday protection is crucial!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so too does the UV Index, which is crucial for understanding sun exposure risks. High-risk months typically range from March to September, where the UV Index reaches levels classified as high to very high—notably peaking at 10 from May to August. During these months, the recommended burn time drops to just 15 minutes, indicating that individuals should take extra precautions, such as wearing sunscreen, sunglasses, and protective clothing. In contrast, winter months like January and December present moderate UV levels, allowing for slightly longer safe exposure times of around 30 minutes. Visitors and residents are advised to stay informed about daily UV levels, especially during the summer months, to safeguard their skin and overall health.
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 |
| Machang | 4 | 5 | 7 | 8 | 10 | 10 | 10 | 10 | 9 | 7 | 5 | 3 |
| 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 |
| 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 |