UV Index in Hoai An, Vietnam

Last updated: June 2, 2025

In Hoai An, Vietnam, being aware of the UV Index is crucial, as it plays a significant role in protecting your skin from harmful sun exposure. Understanding UV levels is essential not only for preventing painful sunburns but also for maintaining long-term skin health. With a tropical climate that often experiences high UV radiation—especially between 10 AM and 2 PM—locals and visitors alike need to stay informed about the daily UV Index. For instance, peak levels can reach as high as 13 at noon, indicating a serious risk for skin damage. By keeping track of UV fluctuations throughout the day, you can enjoy the beautiful outdoors of Hoai An while minimizing health risks associated with UV exposure.

Hourly UV Index in Hoai An

The UV Index throughout the day exhibits a pronounced peak during midday hours, with 11 at 10:00 AM and a high of 13 from 11:00 AM to 12:00 PM. This indicates a critical period for sun exposure, where protective measures are highly recommended. As the afternoon progresses, the intensity begins to wane, dropping to 5 by 3:00 PM and further decreasing to 1 by 5:00 PM. By evening, the index falls to a safe 0 at 7:00 PM, marking the end of the day's UV threat. Be mindful of the strong sunlight around noon and plan your outdoor activities accordingly to safeguard your skin!

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

Monthly UV Index Trends in Hoai An

The UV Index shows significant seasonal changes, with extreme exposure risks persisting from January through October. Notably, the months of March, April, May, July, and August maintain a high UV Index of 15, representing a period of particularly intense sun exposure. Visitors and residents should exercise caution during these high-risk months; with an average burn time of just 10 minutes, it is crucial to take protective measures such as wearing sunscreen, hats, and UV-protective clothing. In contrast, the UV Index decreases slightly in November and December, but even then, precautions are advised as the index remains at a very high level in December. Staying vigilant about sun protection will help ensure safety throughout the year.

Monthly Maximum UV Index for Hoai An, Vietnam

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

The table above highlights how UV exposure in Hoai An 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.

Hoai An'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
Hoai An	11	13	15	15	15	13	15	15	14	13	11	9