UV Index in Cai Nhum, Vietnam

Last updated: June 2, 2025

Understanding the UV Index in Cai Nhum, Vietnam is crucial for protecting your skin from harmful ultraviolet rays. With peak UV levels reaching a staggering 13 around noon, being aware of the UV Index helps you prevent sunburn and maintain overall skin health. Cai Nhum's tropical climate means that UV exposure can be high year-round, making it essential for locals and visitors alike to monitor these levels throughout the day. By understanding when the sun's rays are most intense, you can take proactive measures to safeguard your skin while enjoying the beautiful outdoors.

Hourly UV Index in Cai Nhum

The UV Index for today begins cautiously at 1 by 7:00 AM, gradually rising to a peak of 13 at noon. As the sun climbs higher overhead, the intensity reaches a dangerous level of 12 around 11:00 AM, making sun protection essential. By early afternoon, at 1:00 PM, the UV Index starts to decline, dropping to 11 and then to 8 by 2:00 PM. As the day progresses, it continues to fade, falling to 3 at 4:00 PM before returning to 1 by 5:00 PM. The UV risk diminishes significantly by evening, with the index nearing zero after 7:00 PM. Remember to stay sun-safe during peak hours!

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	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	8	very high	15 min
15:00	5	moderate	30 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 Cai Nhum

Throughout the year, the UV Index experiences significant changes, particularly peaking in the first half. January starts with a UV Index of 10, categorized as very high, where a burn can occur in just 15 minutes. However, the intensity escalates dramatically from February to April, with the UV Index reaching a maximum of 15 in March, classified as extreme, necessitating vigilance as burn times shrink to just 10 minutes. This high-risk period continues through May, June, July, and into August, with similar UV levels persisting and caution advisable. As the year progresses into the fall, the UV Index remains elevated, particularly in September and October, yet begins to taper off by November and December with a return to very high levels but longer burn times of 15 minutes again. Visitors and residents are advised to take necessary precautions—such as wearing sunscreen, protective clothing, and seeking shade—especially during the peak months from February to October when UV exposure poses a greater risk.

Monthly Maximum UV Index for Cai Nhum, Vietnam

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

The table above highlights how UV exposure in Cai Nhum 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.

Cai Nhum'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
Ho Chi Minh City UVI	10	13	15	14	14	12	13	14	13	13	11	10
Cai Nhum	10	13	15	14	14	13	13	14	14	13	11	10
Bien Hoa UVI	10	14	15	15	14	13	14	14	13	12	11	10