UV Index in Ho, Vietnam

Last updated: July 2, 2025

Understanding the UV Index in Ho, Vietnam is crucial for protecting your skin and maintaining overall health. With the sun's intensity peaking at a UV Index of 12 around midday, awareness of these levels can help prevent painful sunburns and long-term skin damage. Ho's Cwa climate, characterized by its distinct wet and dry seasons, often leads to heightened exposure risks, especially during the sunny months. By keeping an eye on the UV Index, residents and visitors can enjoy safe outdoor activities while safeguarding their skin from harmful ultraviolet radiation.

Hourly UV Index in Ho

The UV Index shows an exciting yet cautionary trend throughout the day. Starting at a low 2 at 07:00, it gains momentum rapidly, peaking at a striking 12 between 11:00 and 12:00—the perfect time for sun protection! As the afternoon progresses, the index gracefully declines, dropping to 5 by 15:00 and further down to a safe 1 by 17:00. As the sun begins to set, the UV risk dwindles to zero by 19:00. It's a stark reminder to stay vigilant against harmful rays, especially during those mid-day hours when exposure can be 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	2	low	45 min
08:00	4	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	9	very high	15 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Ho

The UV Index reflects significant seasonal variations, with the highest levels occurring from March to October, where values frequently reach between 12 and 13 in the extreme exposure category. January and February are marked as very high with indices of 8 and 10 respectively, while November maintains a very high level of 9 before dropping to high in December at 7. High-risk months are primarily from March to September, where the burn time is drastically reduced to just 10 minutes during peak hours. For both residents and visitors, it is crucial to take precautions during these peak UV periods, such as wearing protective clothing, applying broad-spectrum sunscreen, and limiting sun exposure, especially during midday hours to minimize the risk of skin damage.

Monthly Maximum UV Index for Ho, Vietnam

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

The table above highlights how UV exposure in Ho 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.

Ho'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
Ho	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