UV Index in Heihe, China

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Heihe, China, where sun exposure can vary dramatically throughout the day. The UV Index indicates the intensity of ultraviolet radiation, helping you gauge when to take precautionary measures against sunburn and long-term skin damage. With Heihe's ET climate, characterized by cooler temperatures yet significant sun intensity during peak hours, awareness of UV levels is essential—especially when readings can soar to 15 between 1 PM and 2 PM. By staying informed about UV safety, you can protect your skin, enjoy the outdoors, and make the most of this beautiful region while minimizing health risks.

Hourly UV Index in Heihe

The UV Index starts off gently at 1 at 7:00 AM, indicating a low level of sun exposure risk, but as the morning unfolds, it gradually climbs. By 9:00 AM, it reaches 4, signaling a moderate risk, and by 10:00 AM, it surges to 7, prompting a call for increased sun safety precautions. The peak occurs at 1:00 PM, with the index hitting a striking 15, before it gradually starts to decline in the late afternoon. By 3:00 PM, it settles at 13, reflecting a still significant risk. As the sun starts to set, the UV Index drops sharply to 3 by 6:00 PM, and finally returns to a low 1 by 7:00 PM. It’s a day that demands vigilance under the sun, especially during the midday hours when the UV intensity is at its highest!

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

Monthly UV Index Trends in Heihe

Throughout the year, the UV Index exhibits significant fluctuations, with the highest risk months occurring from March to September, where values reach extreme levels of 11 to 18, resulting in a burn time as low as 10 minutes. In contrast, January and December present moderate exposure, while October and November are classified as very high. Residents and visitors should exercise caution during the high-risk months by seeking shade, wearing protective clothing, and applying sunscreen with a high SPF regularly to mitigate potential harm from increased UV radiation. Staying informed and adjusting outdoor activities accordingly can help ensure safety during these sun-intensive periods.

Monthly Maximum UV Index for Heihe, China

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

The table above highlights how UV exposure in Heihe 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.

Heihe'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
Shenzhen UVI	7	10	12	12	14	13	13	13	12	11	9	7
Heihe	4	7	11	13	18	16	15	15	13	10	8	5