UV Index in Nantong, China

Last updated: May 3, 2025

In Nantong, China, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels can help you take proactive measures against sunburn and long-term skin damage, especially during the region's warm Cfa climate. With peak UV readings reaching 12 around midday, Nantong residents and visitors alike should be vigilant, as even short exposure can lead to harmful effects. By staying informed about daily UV fluctuations, you can enjoy the sun safely while protecting your skin's health.

Hourly UV Index in Nantong

The UV Index provides a vital insight into sun exposure throughout the day, peaking during the late morning to early afternoon hours. At 07:00, it starts off low at 2, but by 08:00, it rises to 4, indicating increasing sun intensity. The real surge happens between 09:00 and 12:00, where it climbs dramatically to a maximum of 12 at 11:00 and 12:00. As the sun begins to dip after 13:00, the index gradually decreases to 11 at 1 PM and gently tapers off to 9 at 2 PM. By 3 PM, it continues to decline to 6, and by the evening, it reaches a minimal 1 at both 5 PM and 6 PM, finally falling to 0 by 7 PM. This hourly breakdown urges us to protect our skin during the peak hours, especially when the index hits its zenith.

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	2	low	45 min
08:00	4	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Nantong

Throughout the year, UV exposure levels fluctuate significantly, with high-risk months spanning from February to September. The UV Index peaks between June and August, when it reaches an alarming 13, indicating an extreme exposure category with a burn time of just 10 minutes. In contrast, January and December have lower indices of 7 and 6, respectively, categorized as high. To protect yourself, especially during peak months, it’s crucial to apply sunscreen regularly, seek shade, and wear protective clothing. Residents and visitors should remain vigilant from February through September and take all necessary precautions to minimize sun damage during these high UV index months.

Monthly Maximum UV Index for Nantong, China

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Nantong. 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 Nantong, 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 Nantong UV Index with Other China Cities

The table above highlights how UV exposure in Nantong 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.

Nantong'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
Nantong	7	9	11	12	12	13	13	13	11	9	8	6
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