UV Index in Haiphong, Vietnam

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors of Haiphong, Vietnam, where the subtropical climate brings intense sun exposure. Awareness of UV levels helps in preventing sunburns and maintaining optimal skin health, ensuring you enjoy the outdoors safely. With UV Index readings peaking at 12 during midday hours, knowing when to protect yourself becomes vital. Haiphong’s climate not only increases the potential for UV-related risks but also highlights the need for vigilance when enjoying its beautiful, sunlit days.

Hourly UV Index in Haiphong

At sunrise, the UV Index begins at a gentle 2 by 07:00, but as the sun rises higher, the intensity quickly escalates. By 09:00, it reaches a moderate 7, signaling outdoor enthusiasts to apply sunscreen. The peak comes at 11:00 and 12:00, where the index peaks at a striking 12, indicating very high levels of UV radiation. As the afternoon progresses, the index gradually decreases, dipping to 8 by 14:00 and further dropping to 5 by 15:00. In the late afternoon and evening, the UV Index retreats to 3 by 16:00, finally settling at 1 by 17:00 and fading to 0 after 19:00. This daily cycle highlights the importance of sun safety during those 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	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	12	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 Haiphong

Throughout the year, UV Index levels fluctuate significantly, with the highest risk months being from March to October, where values consistently reach extreme levels of 10 or above. Specifically, April, June, July, August, and September all see a peak UV Index of 13, necessitating only 10 minutes of exposure before potential skin damage occurs. In contrast, the UV Index is at its lowest in December and January, with values of 7 and 8, respectively, making burn times of 25 and 15 minutes more tolerable. Visitors and residents are strongly advised to take precautionary measures during the high-risk months by wearing sunscreen, protective clothing, and seeking shade to minimize skin damage. Stay vigilant to ensure your safety while enjoying outdoor activities!

Monthly Maximum UV Index for Haiphong, Vietnam

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

The table above highlights how UV exposure in Haiphong 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.

Haiphong'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	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