UV Index in Ly Son, Vietnam

Last updated: June 2, 2025

In Ly Son, Vietnam, being aware of the UV Index is crucial for safeguarding your skin health and preventing painful sunburn. The tropical climate of this beautiful island brings with it a unique set of UV exposure risks, particularly during the midday hours when the UV Index peaks at a striking 13. Understanding these levels helps visitors and residents alike take the necessary precautions to enjoy outdoor activities safely. With UV levels rising significantly from 8 by 9 AM to a maximum of 13 between 11 AM and 12 PM, it’s essential to monitor these fluctuations to protect your skin and enjoy all that Ly Son has to offer.

Hourly UV Index in Ly Son

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 Ly Son

The UV Index exhibits significant seasonal fluctuations throughout the year, with peak levels occurring from February to October. This period features extreme exposure categories, particularly from March through October, where the UV Index remains at 12 or higher, indicating a burn time of just 10 minutes. High-risk months include February, March, April, May, June, July, August, September, and October, all of which pose increased risk for skin damage. Residents and visitors are advised to take precautions during these months by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sunlight hours to minimize UV exposure and protect their skin health. As the year progresses, levels decrease in November and December, returning to a very high exposure category, reminding individuals to stay vigilant even during the cooler months.

Monthly Maximum UV Index for Ly Son, Vietnam

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

The table above highlights how UV exposure in Ly Son 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.

Ly Son'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
Ly Son	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