UV Index in Hoa Mac, Vietnam

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Hoa Mac, Vietnam, where the tropical climate presents unique sun exposure risks. With UV levels peaking at 12 between 11 AM and 1 PM, awareness is key to preventing sunburn and promoting long-term skin health. By monitoring the UV Index, you can make informed decisions about sun protection—essential in a region known for its intense sunlight. Stay vigilant and protect your skin while enjoying the warmth and beauty of this vibrant locale!

Hourly UV Index in Hoa Mac

As the sun rises, the UV Index begins its steady ascent, starting at a mild 2 at 7:00 AM. By 9:00 AM, it reaches a notable 7, signaling the need for sun protection. The peak occurs at 11:00 AM and 12:00 PM, where it hits a maximum of 12, indicating dangerously high levels of UV radiation. After this midday zenith, the index gradually declines, dropping to 6 by 3:00 PM and further to 1 by 5:00 PM, ultimately reaching 0 at sunset. This hourly progression emphasizes the importance of vigilance against UV exposure, particularly during the late morning to early afternoon when the risk 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	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	8	very high	15 min
15:00	6	high	25 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 Hoa Mac

Throughout the year, UV exposure levels vary significantly, with the highest risks occurring from March to October. During these months, the UV Index frequently reaches extreme levels, peaking at 13 in May, July, August, and September, and presenting a burn time of only 10 minutes. January and December are the months with a lower risk, categorized as high with a UV Index of 7 and a burn time of 25 minutes. Notably, February and November fall under the very high category, making them important to approach with caution as well. To ensure safety, residents and visitors should be vigilant during the high-risk months, applying broad-spectrum sunscreen, seeking shade, and wearing protective clothing during peak sunlight hours.

Monthly Maximum UV Index for Hoa Mac, Vietnam

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

The table above highlights how UV exposure in Hoa Mac 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.

Hoa Mac'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
Hoa Mac	7	10	12	12	13	12	13	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