Last updated: July 2, 2025
In Hekou, China, staying informed about the UV Index is crucial for maintaining optimal skin health and preventing sunburn. Understanding UV levels helps residents and visitors alike protect themselves from harmful radiation, especially during peak exposure times. With a Cfa climate that offers plenty of sunny days, Hekou experiences notable UV intensity, particularly between 11:00 AM and 1:00 PM, when the index can soar to a staggering 11. By being aware of these risks, you can enjoy the beautiful outdoors while safeguarding your skin against damage.
The UV Index throughout the day showcases a remarkable rise, peaking impressively at 11 between noon and 1 PM. Starting with a modest 1 at 7 AM, the index escalates to around 3 by 8 AM and rapidly climbs, hitting 5 by 9 AM. The ascent continues as the sun reaches its zenith, soaring to 8 at 10 AM and breaching the 10 mark by 11 AM. As we reach peak sun hours, it stabilizes at 11 for both 12 PM and 1 PM, before gradually descending to 9 at 2 PM and tapering off to 7 by 3 PM. The latter part of the afternoon sees a gentle decline to 4 at 4 PM, finally returning to the morning's low of 1 by 6 PM, and maintaining this relaxed level through 7 PM. It's a vivid reminder of the sun's strength, urging outdoor enthusiasts to stay sun-smart during the intense midday hours!
| 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 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | 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 |
Seasonal changes in UV exposure reveal significant fluctuations throughout the year. The highest risk months occur from June to August, where the UV Index reaches a peak of 11, indicating extreme exposure and a burn time of just 10 minutes. Spring ushers in rising UV levels, with March to May classified as very high risk months. Conversely, winter months like December and January present lower risk, with UV levels categorized as moderate or high. Visitors and residents are strongly advised to take necessary precautions during the high-risk months by wearing protective clothing, using sunscreen with high SPF, and seeking shade during peak sunlight hours to minimize the risk of UV-related 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 |
| Hekou | 5 | 6 | 8 | 9 | 10 | 11 | 11 | 11 | 10 | 8 | 6 | 4 |
| 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 |