UV Index in China, Mexico

Last updated: July 2, 2025

In China and Mexico, being aware of the UV Index is essential for protecting your skin and overall health. Understanding the varying UV levels throughout the day can help prevent sunburn and reduce the risk of long-term skin damage. With a diverse climate, such as the BSh climate found in parts of China, intense midday sun raises UV levels significantly — peaking at 12 between noon and early afternoon. Stay informed and take proactive measures to ensure you enjoy outdoor activities safely!

Hourly UV Index in China

Throughout the day, the UV index experiences a significant rise, peaking at 12 around 1 PM and 2 PM, indicating extremely high levels of ultraviolet radiation. Morning hours start off gentle, with values remaining at 1 until 9 AM, gradually climbing to 4 by 10 AM. By 11 AM, it escalates to a robust 7, warning sun-seekers to take precautions. As the sun reaches its zenith at noon, the index surges to 10, highlighting the importance of sun protection. In the afternoon, values drop slightly but maintain intensity, tapering off to 5 by 5 PM and further declining into the evening, where the UV index returns to a mild 1 by 7 PM. Emphasizing the necessity of sun safety, the data serves as a reminder to seek shade or wear sunscreen 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	1	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	4	moderate	30 min
11:00	7	high	25 min
12:00	10	very high	15 min
13:00	12	extreme	10 min
14:00	12	extreme	10 min
15:00	11	extreme	10 min
16:00	8	very high	15 min
17:00	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in China

During the year, UV Index levels exhibit notable seasonal changes, with high-risk months concentrated from February to September. The highest readings occur in April to September, where the UV Index reaches 12, categorized as extreme, with a burn time of just 10 minutes. Particularly, months like February and March, registering UV Index values of 9 and 10 respectively, also signify significant risk, labeled as very high. Visitors and residents are strongly advised to take precautions during these months by using sunscreen, wearing protective clothing, and limiting sun exposure, especially during midday hours, to reduce the risk of sunburn and long-term skin damage. As the year transitions into November and December, the UV Index decreases to levels classified as high, but vigilance is still recommended to safeguard skin health.

Monthly Maximum UV Index for China, Mexico

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

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

China's solar exposure compared to other cities in Mexico. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
China	6	9	10	12	12	12	12	12	11	10	7	6
Guadalajara UVI	9	11	14	14	14	13	13	13	13	12	9	8
Iztapalapa UVI	10	12	14	15	14	14	14	14	14	12	10	8
Ecatepec de Morelos UVI	10	12	14	15	15	14	14	13	14	12	10	8
Mexico City UVI	10	12	14	15	15	14	14	13	14	12	10	8
Puebla UVI	10	12	14	15	15	15	15	14	14	13	10	9