Last updated: July 2, 2025
In Karjaw, China, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With a climate characterized as BWk, residents experience significant UV exposure, particularly during the midday hours when the index peaks at a striking 9. Being aware of UV levels not only helps you protect your skin from harmful rays but also informs your outdoor activities—whether it's enjoying the sun or seeking shade. Stay informed and stay safe by keeping an eye on the UV Index, as it plays a vital role in your daily sun safety strategy.
The UV Index for the day shows a significant rise in solar intensity as the morning progresses. Starting from a low of 2 at 07:00, the index climbs steadily, reaching 3 by 08:00, and hitting 5 at 09:00. The peaks are most pronounced between 10:00 and 13:00, where it soars to its maximum of 9 at 12:00 and remains high at 8 for both 13:00 and 14:00. As the afternoon wanes, the levels begin to decrease, dropping to 6 by 15:00 and further declining to 4 at 16:00. By 17:00, the index returns to a safe 2, and eventually tapers off to 1 for the evening hours. Be sure to protect your skin during the midday peak when the sun is at its strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | 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 |
Throughout the year, UV levels exhibit significant seasonal changes that are crucial for residents and visitors to consider. From January to February, the UV Index remains low to moderate, with burn times ranging from 30 to 45 minutes. However, March marks the beginning of higher UV risks with an Index rising to 6-7 and burn times decreasing to 25 minutes. The highest risk occurs from May to August, where the UV Index peaks at 10 during May and stays at 9 for June, July, and August, necessitating protective measures as burn times drop to just 15 minutes. As fall approaches, September sees a decrease to a high risk of 7, followed by a return to moderate levels in October before dropping back to low in November and December. Visitors and residents should take extra caution from March through September, especially during peak months, by wearing sunscreen, protective clothing, and limiting sun exposure during the highest UV times.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Karjaw | 2 | 3 | 6 | 7 | 10 | 9 | 9 | 9 | 7 | 4 | 2 | 2 |
| 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 |
| 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 |