UV Index in Jiayi, China

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Jiayi, China, where sunny days are frequent and UV exposure can pose serious health risks. Monitoring UV levels helps prevent sunburn and protects skin health, making it essential to stay informed. In Jiayi's Cwa climate, where summers can be hot and humid, UV levels can peak dramatically, reaching highs of 14 between noon and early afternoon. This highlights the need for awareness and protective measures, ensuring that everyone can enjoy the beautiful weather while minimizing harmful exposure.

Hourly UV Index in Jiayi

The UV Index data reveals a dynamic shift in solar intensity throughout the day. Starting at a mild level of 1 at 7:00 AM, the index gradually climbs, hitting 2 by 8:00 AM. But as the sun rises higher, UV levels surge, reaching a peak of 14 by 1:00 PM—indicative of intense solar exposure. This high point persists until 2:00 PM before gradually declining, with the index dropping to 5 by 4:00 PM and further to 1 by 7:00 PM. For those planning outdoor activities, it’s crucial to maximize sun safety during the midday hours, particularly from 11:00 AM to 1:00 PM, when UV levels are at their most hazardous.

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	5	moderate	30 min
10:00	8	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	14	extreme	10 min
14:00	12	extreme	10 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Jiayi

Throughout the year, the UV Index experiences notable fluctuations, with high-risk months primarily occurring from February through October. The peak UV Index values are recorded during July at 14 and June with 13, both categorized as extreme, meaning the burn time is as low as 10 minutes. Conversely, the months of January and December see a significantly lower UV Index of 7, categorized as high, allowing for a burn time of 25 minutes. To ensure safety, visitors and residents should take precautionary measures during the spring and summer months, especially in March through September, when exposure levels are at their highest. It is advisable to wear sunscreen, protective clothing, and seek shade during peak sun hours to mitigate risks associated with sun exposure.

Monthly Maximum UV Index for Jiayi, China

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

The table above highlights how UV exposure in Jiayi 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.

Jiayi'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
Guangzhou UVI	7	9	11	12	13	13	13	12	11	10	9	7
Jiayi	7	10	12	12	13	13	14	13	11	11	9	7
Shenzhen UVI	7	10	12	12	14	13	13	13	12	11	9	7