UV Index in Chi Thanh, Vietnam

Last updated: August 1, 2025

Understanding the UV Index in Chi Thanh, Vietnam is crucial for safeguarding your skin and overall health. With peak UV levels reaching as high as 14 around midday, awareness of these measurements can dramatically reduce your risk of sunburn and long-term skin damage. Chi Thanh, characterized by its warm tropical climate and abundant sunshine, poses significant UV exposure risks—especially during the late morning and early afternoon hours. By keeping an eye on the UV Index, you can enjoy the outdoors while taking the necessary precautions to protect your skin from harmful rays.

Hourly UV Index in Chi Thanh

The UV Index throughout the day paints a vivid picture of sun intensity and potential exposure risks. At 7:00 AM, it starts at a mild 2, making it safe for early outdoor activities. However, by 9:00 AM, it ramps up to 8, signaling increased caution. The peak hits at 11:00 AM and 12:00 PM, both soaring to 14, indicating high UV levels that demand protective measures. As the afternoon progresses, the index gradually declines—down to 5 by 3:00 PM and falling to a comfortable 1 by 5:00 PM. Surprisingly, by 7:00 PM, it drops to 0, giving way to safer evening outdoor conditions. Those planning to bask in the sun should be vigilant between 10:00 AM and 2:00 PM, when the sun's rays are at their fiercest!

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

Monthly UV Index Trends in Chi Thanh

The UV Index experiences extreme levels year-round, peaking in March and April at 15, with consistently high values ranging from 11 to 15 from January to October. The high-risk months for UV exposure are clearly February to April, where the index regularly reaches 13 or higher, resulting in a rapid burn time of just 10 minutes. Even in November, the UV levels remain elevated at 11, while December sees a slight decrease to 9 but still classified as very high, with a burn time of 15 minutes. Visitors and residents are encouraged to take precautionary measures throughout the year, especially during peak months. This includes wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours to minimize the risk of skin damage.

Monthly Maximum UV Index for Chi Thanh, Vietnam

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

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

Chi Thanh's solar exposure compared to other cities in Vietnam. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hanoi UVI	8	10	12	12	13	12	12	13	13	11	9	7
Haiphong UVI	8	10	12	13	12	13	13	13	13	11	9	7
Da Nang UVI	10	12	14	15	14	13	14	14	13	12	10	9
Ho Chi Minh City UVI	10	13	15	14	14	12	13	14	13	13	11	10
Bien Hoa UVI	10	14	15	15	14	13	14	14	13	12	11	10
Chi Thanh	11	13	15	15	14	13	14	14	14	13	11	9