UV Index in Dien Bien Phu, Vietnam

Last updated: July 2, 2025

Understanding the UV Index is essential for residents and visitors in Dien Bien Phu, Vietnam, where the warm Cwa climate can lead to significant sun exposure. Being aware of UV levels is crucial for effective sunburn prevention and maintaining optimal skin health, especially as levels peak dramatically throughout the day—reaching a maximum of 15 at noon. With UV exposure risks higher than many might expect, especially during the sunniest hours, staying informed empowers you to protect yourself and enjoy the beautiful scenery without the threat of harmful skin damage.

Hourly UV Index in Dien Bien Phu

The UV Index shows a dramatic rise in solar intensity as the morning progresses. Starting at a mere 1 at 07:00, the index climbs steadily, reaching a peak of 15 by noon. As the sun reaches its zenith, from 11:00 to 13:00, it's crucial to take precautions against harmful UV rays, particularly when the index hits 13 and 14. However, relief comes in the afternoon as it begins to dip to 11 at 14:00, eventually dropping to 4 by 16:00 and plummeting to 0 by 19:00. This data highlights the importance of sun safety during the height of the day, especially when the UV Index is at its highest. Stay sun-smart!

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	3	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	13	extreme	10 min
12:00	15	extreme	10 min
13:00	14	extreme	10 min
14:00	11	extreme	10 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Dien Bien Phu

The UV Index shows significant seasonal variation, with very high and extreme levels predominating from January to October. The high-risk months for UV exposure are particularly March through October, where the Index peaks at 15 in May and July, denoting an extreme exposure category with a burn time of only 10 minutes. As a result, both visitors and residents should take essential precautions during these months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade whenever possible, especially during midday hours. In the low-risk months of November and December, while the UV Index remains very high, the longer burn times of 15 minutes suggest slightly less risk, although caution is still advised.

Monthly Maximum UV Index for Dien Bien Phu, Vietnam

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

The table above highlights how UV exposure in Dien Bien Phu 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.

Dien Bien Phu'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
Dien Bien Phu	8	10	13	12	15	14	15	14	14	12	9	8
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