UV Index in Nga Son, Vietnam

Last updated: August 1, 2025

In Nga Son, Vietnam, understanding the UV Index is essential for both sun safety and skin health. With high UV exposure levels peaking at a staggering 14 around noon, locals and visitors alike must be vigilant about protecting themselves from the harmful effects of the sun, including painful sunburns and long-term skin damage. The Cwa climate typical of this region brings warm and humid summers, further exacerbating UV risks throughout the day. By staying informed of daily UV levels, you can enjoy the beautiful outdoors while safeguarding your skin from the sun's intense rays.

Hourly UV Index in Nga Son

At dawn, the UV Index starts softly at 2 by 07:00, suggesting a low risk for sun exposure. As the morning progresses, it escalates to 4 by 08:00 and reaches 7 at 09:00, indicating a moderate level of sun intensity. The day peaks with an impressive 14 at 12:00, where sun safety becomes crucial as the risk is rated high. Afternoon hours see a gradual decline from 13 at 13:00 down to 10 by 14:00, before dropping further to 6 at 15:00. As the sun begins to set, the UV Index dwindles to 3 by 16:00, and finally settles at 1 by 17:00 and 18:00, with a complete drop to 0 by 19:00, signaling that the sun's rays are no longer a concern. Always remember to protect your skin during those high UV periods!

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	7	high	25 min
10:00	10	very high	15 min
11:00	13	extreme	10 min
12:00	14	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 Nga Son

Throughout the year, UV Index levels show significant seasonal variation, with the highest readings occurring from March to October. During these months, particularly from May to August, the UV Index reaches an extreme level of 13 to 14, with a burn time as short as 10 minutes. The high-risk months specifically include March through October, necessitating vigilant sun protection measures. Visitors and residents are strongly advised to limit sun exposure, especially during peak hours, wear protective clothing, and apply broad-spectrum sunscreen. In contrast, November and December present a lower risk with UV Index levels of 9 and 7, respectively, and longer burn times, allowing for easier sun safety precautions. Always prioritize skin protection, especially in the peak UV season.

Monthly Maximum UV Index for Nga Son, Vietnam

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

The table above highlights how UV exposure in Nga 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.

Nga 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
Nga Son	8	10	12	13	13	13	14	14	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