UV Index in Phong Tho, Vietnam

Last updated: August 1, 2025

Understanding the UV Index in Phong Tho, Vietnam, is crucial for protecting your skin from harmful ultraviolet radiation, especially given the region's Cwa climate which often sees high UV levels. As the sun reaches its peak intensity between 10 AM and 2 PM, with UV Index values soaring up to 15, it's essential to be aware of the risks of sunburn and long-term skin damage. By monitoring UV levels, residents and visitors can take proactive measures to safeguard their skin health, ensuring outdoor activities are enjoyed safely while minimizing exposure to potentially harmful rays.

Hourly UV Index in Phong Tho

The UV Index throughout the day showcases a dramatic rise and fall in intensity. Starting at 07:00, the index is a modest 2, but by 09:00, it jumps to 7, indicating a sharp increase in sun exposure. The peak intensity occurs at 12:00, where the UV Index reaches a scorching 15, signaling a critical need for sun protection. As the afternoon rolls in, the numbers begin to decline, dipping to 11 by 14:00 and further down to 4 at 16:00. Finally, the index wanes into the evening, dropping to 1 at 18:00 and settling at 0 by 19:00, effectively marking the end of a sun-soaked day. Pay attention to these fluctuations to protect your skin from harmful UV rays!

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	1	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	10	very high	15 min
11:00	13	extreme	10 min
12:00	14	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Phong Tho

The UV index experiences significant fluctuations throughout the year, peaking from March to October. During this period, the high-risk months are clearly marked by extreme UV levels, with May and July reaching a maximum of 15, while April and June hold strong at 13-14. As a general guideline, the burn time for these months is notably short, averaging just 10 minutes under peak sun exposure. January and February are also concerning with a very high index of 8-10. Residents and visitors are strongly advised to take precautions during these months: seek shade during peak hours, wear protective clothing, and apply broad-spectrum sunscreen frequently to minimize the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Phong Tho, Vietnam

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

The table above highlights how UV exposure in Phong Tho 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 Tho'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
Phong Tho	8	10	12	13	15	14	15	14	14	12	9	8
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