Last updated: May 3, 2025
In Tongchang, China, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With UV levels peaking at a staggering 14 during midday hours, awareness of these values can help residents and visitors protect themselves from harmful rays. Given Tongchang's Cwb climate, characterized by warm, wet summers, the potential for UV exposure increases, making it vital to stay informed. By staying alert to daily UV indices, individuals can enjoy the outdoors safely while taking the necessary precautions against skin damage.
The UV Index throughout the day exhibits a dramatic rise and fall, peaking at a scorching 14 at 1 PM. Early hours start off with a gentle UV Index of 1 at 7 AM, gradually increasing to 2 by 8 AM. As the sun climbs higher, the intensity surges, reaching 4 at 9 AM, followed by a notable jump to 7 at 10 AM and an intense 11 at 11 AM. The maximum UV exposure occurs at 12 PM, registering 13, before slightly tapering off to 14 just an hour later. The afternoon sees a decline, with readings falling to 11 at 3 PM and then down to 7 by 4 PM. As day turns to evening, the UV Index gently retreats, returning to 1 by 7 PM. It's a day that highlights the importance of sun safety, particularly during those midday 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 | 11 | extreme | 10 min |
12:00 | 13 | extreme | 10 min |
13:00 | 14 | extreme | 10 min |
14:00 | 13 | extreme | 10 min |
15:00 | 11 | extreme | 10 min |
16:00 | 7 | high | 25 min |
17:00 | 4 | moderate | 30 min |
18:00 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant seasonal fluctuations, peaking during the warmer months. The highest risk occurs from March to October, where the index escalates to extreme levels (12-16), with a notably intense peak in July at 16, indicating a mere 10-minute burn time. Conversely, the months of January and February start with a very high index (8-9), while December showcases a high level (7), allowing for a longer 25-minute burn time. Visitors and residents are strongly advised to take precautions, particularly during the high-risk months from March through October. This includes wearing protective clothing, applying sunscreen frequently, and seeking shade during peak sunlight hours to mitigate 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 |
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 |
Tongchang | 8 | 9 | 12 | 13 | 14 | 14 | 16 | 14 | 13 | 12 | 9 | 7 |