UV Index in Shanghai, China

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Shanghai, China, where sun exposure can pose significant risks, especially during the scorching summer months. By staying informed about daily UV levels, you can take proactive steps to prevent sunburn and protect your skin's health. Shanghai's Cfa climate, characterized by hot summers and milder winters, means that UV levels often peak between 10 AM and 2 PM, with values reaching as high as 10—a reminder that effective sun safety measures are essential. Being aware of the UV Index not only supports your skin health but also enhances your overall outdoor experience in this vibrant city.

Hourly UV Index in Shanghai

The UV Index experiences a dynamic rise and fall throughout the day, peaking at 10 between 11:00 AM and 12:00 PM, signaling a high risk for skin damage without protection. Early morning hours see a gentle start with a maximum of 2 at 7:00 AM, gradually increasing to 6 by 9:00 AM. As the sun climbs, it reaches 9 by 10:00 AM, before hitting the day's pinnacle. Post-noon, the index begins its descent, dropping to 9 at 1:00 PM and then tapering down to 2 by 4:00 PM. As evening approaches, the risk significantly decreases, falling to 0 by 7:00 PM. It's a vivid reminder of the sun's intensity and the importance of sun safety during peak hours.

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	6	high	25 min
10:00	9	very high	15 min
11:00	10	very high	15 min
12:00	10	very high	15 min
13:00	9	very high	15 min
14:00	7	high	25 min
15:00	5	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Shanghai

Throughout the year, UV exposure fluctuates significantly, with the highest risks occurring during the late spring and summer months. From March to August, the UV Index rises sharply, peaking at 12 in July, categorized as extreme, which corresponds to a burn time of just 10 minutes. Notably, April, May, June, July, August, and September are classified as very high to extreme risk months, where protective measures are crucial. Residents and visitors should be particularly vigilant during these months, using broad-spectrum sunscreen, wearing protective clothing, and minimizing sun exposure during peak hours. Conversely, January, February, and December see lower UV levels, with moderate exposure requiring less stringent precautions. However, awareness remains essential year-round to prevent skin damage.

Monthly Maximum UV Index for Shanghai, China

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

The table above highlights how UV exposure in Shanghai 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.

Shanghai'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	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