UV Index in Phong Chau, Vietnam

Last updated: July 2, 2025

Understanding the UV Index in Phong Chau, Vietnam, is crucial for safeguarding your skin and overall health. With high UV levels typically peaking between 10 AM and 1 PM, awareness of these fluctuations can prevent painful sunburns and reduce the long-term risk of skin issues. Phong Chau's humid subtropical climate (Cwa) exposes residents and visitors alike to significant UV radiation, especially during summer months. By staying informed about the UV Index, you can take proactive steps to protect yourself from harmful rays while enjoying the beautiful outdoors.

Hourly UV Index in Phong Chau

The UV Index throughout the day presents a dynamic snapshot of sun intensity, peaking sharply at 12:00 PM with a striking UVI of 13. Morning hours start off gently, climbing from 2 at 07:00 to 6 by 09:00. As the sun reaches its zenith, the index escalates rapidly, hitting 10 by 10:00 and soaring to its maximum of 12 at 11:00 AM. This intensity persists until 1:00 PM, when it begins a gradual decline, dipping to 3 by 4:00 PM and dwindling to 0 by 7:00 PM. For anyone planning outdoor activities, it’s crucial to keep in mind that the highest risk of harm from UV exposure occurs during that midday peak, making sunscreen and protective measures essential in the hours leading up to, and immediately following, noon.

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	6	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	12	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 Phong Chau

Throughout the year, the UV Index exhibits significant seasonal fluctuations, with January and February marking the start of very high UV levels (8 and 10, respectively) and a burn time of just 15 minutes. As we progress into March and April, the index escalates to an extreme level of 12, with a reduced burn time of 10 minutes, highlighting a critical time for sun safety. The peak risk months span from May to October, where the index reaches a sustained high of 13, continuing to warrant just 10 minutes of unprotected exposure before burn occurs. The UV levels begin to decline in November with a UV Index of 9, still classified as very high, before tapering off to a high of 7 in December with a burn time of 25 minutes. To ensure safety, it is essential for visitors and residents to wear protective clothing, apply sunscreen regularly, and seek shade during peak hours, especially from March to October when UV exposure is most intense.

Monthly Maximum UV Index for Phong Chau, Vietnam

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

The table above highlights how UV exposure in Phong Chau 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.

Phong Chau'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
Phong Chau	8	10	12	12	13	13	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