UV Index in Longtanzi, China

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Longtanzi, China, where the subtropical climate can lead to high levels of ultraviolet radiation, especially during the peak hours of noon. Awareness of UV levels is essential for sunburn prevention and maintaining overall skin health, as exposure can lead to serious long-term risks, including skin cancer. With daily peaks reaching an alarming 12 at 1 PM, it's vital for locals to take precautions, such as wearing protective clothing and applying sunscreen, to shield themselves from the intense midday sun and make the most of their outdoor activities while staying safe.

Hourly UV Index in Longtanzi

The UV Index throughout the day showcases a significant rise and fall, reflecting evolving sun exposure. At 7:00 AM, the index is a modest 1, allowing for a gentle start to the day. As the sun climbs higher, by 10:00 AM, it escalates to 6, indicating a notable increase in UV intensity. The peak of the day occurs at 1:00 PM, where the index reaches a striking 12, urging everyone to seek shade and don protective gear. As the afternoon progresses, the UV levels begin to decline, dropping to 8 by 3:00 PM, and further diminishing to 1 by 7:00 PM. This data clearly highlights the essential precautions needed during midday hours to protect against the sun’s rays.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
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	6	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

Monthly UV Index Trends in Longtanzi

Throughout the year, the UV Index exhibits notable seasonal changes, with high-risk months typically from February to August. The UV Index peaks in May, July, and August at 12, categorized as extreme, resulting in a burn time of just 10 minutes. Exposure during these months poses significant risks, with the index remaining high at 10 in April and September, necessitating vigilant sun protection. Conversely, the UV Index drops to moderate levels in January and December, with safe burn times of 30 minutes. Visitors and residents should prioritize sun safety measures, particularly during the high-risk months, including using sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours for optimal protection against UV radiation.

Monthly Maximum UV Index for Longtanzi, China

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Longtanzi. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Longtanzi, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Longtanzi UV Index with Other China Cities

The table above highlights how UV exposure in Longtanzi compares to other major locations across China. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Longtanzi's solar exposure compared to other cities in China. Generated using Copernicus Atmosphere Monitoring Service information.
	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
Longtanzi	5	7	8	10	12	11	12	12	10	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