UV Index in Yen Lac, Vietnam

Last updated: June 2, 2025

Awareness of the UV Index is crucial for residents of Yen Lac, Vietnam, where the tropical climate intensifies sun exposure, making it essential to stay informed. Understanding UV levels can help prevent sunburn and protect skin health, particularly given the peak UV Index here reaches an impressive 13 between noon and 1 PM, indicating a high risk of harm from unprotected sun exposure. With Yen Lac's climate classified as Cwa—characterized by distinct wet and dry seasons—knowing when to seek shade or apply sunscreen is vital for maintaining your well-being under the sun. Stay vigilant to enjoy the beautiful weather safely!

Hourly UV Index in Yen Lac

As dawn breaks, the UV Index begins its journey, starting at a modest 2 at 7:00 AM. By 8:00 AM, it steadily climbs to 4, signaling the approach of stronger rays. The sun reaches its peak intensity at noon, soaring to a remarkable 13. From 11:00 AM to 1:00 PM, the index remains alarmingly high, maxing out at 12 and then gradually declining in the afternoon. By 3:00 PM, it drops to 6 and continues to wane, arriving at a gentle 1 by 5:00 PM. As the day winds down, the UV Index falls to zero by 7:00 PM, presenting a safe reprieve from the sun's rays. Remember to protect your skin during those peak hours when the sun's strength 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	13	extreme	10 min
13:00	11	extreme	10 min
14:00	9	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 Yen Lac

Throughout the year, the UV Index experiences notable fluctuations, with high-risk months occurring from March to October, where the index reaches extreme levels. Specifically, April to July sees peak values of 13 to 14, resulting in a burn time of just 10 minutes. January and February are categorized as very high with an index of 8 and 10 respectively, where the risk remains significant. Conversely, as the year winds down, November and December present lower UV levels, although November still poses a risk with an index of 9. Visitors and residents should take precautions during the high-risk months, such as wearing protective clothing and applying sunscreen frequently, especially during peak daylight hours, to minimize harmful sun exposure.

Monthly Maximum UV Index for Yen Lac, Vietnam

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

The table above highlights how UV exposure in Yen Lac 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.

Yen Lac'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
Yen Lac	8	10	12	12	13	13	14	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