UV Index in Bac Ha, Vietnam

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Bac Ha, Vietnam, where the sunny climate can lead to significant UV exposure. With peak values reaching as high as 14 during midday, it’s essential to be aware of the UV levels to prevent sunburn and protect long-term skin health. Bac Ha’s Cwa climate brings distinct seasonal variations, but the risk of harmful UV radiation remains prevalent, particularly during mid to late morning when levels can soar. Being informed not only enhances your outdoor experience but also safeguards your well-being under the Vietnamese sun.

Hourly UV Index in Bac Ha

The UV Index today showcases a dramatic rise in solar intensity, starting with a moderate level of 2 at 7:00 AM. As the sun climbs higher in the sky, the intensity peaks at a staggering 14 by noon, marking the most hazardous time for sun exposure. It reaches a maximum of 13 at 1:00 PM, emphasizing the need for protective measures like sunscreen and hats. The afternoon sees a swift decline, dropping to 10 by 2:00 PM and further down to 6 at 3:00 PM. As evening approaches, the UV Index dips to 1 by 5:00 PM, offering some relief, before finally settling at 0 after 7:00 PM. For those planning their day, early morning and late evening provide a safer window for outdoor activities, while midday requires caution to avoid overexposure.

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.
TimeUVICategoryTime to Burn
07:002low45 min
08:004moderate30 min
09:007high25 min
10:0011extreme10 min
11:0013extreme10 min
12:0014extreme10 min
13:0013extreme10 min
14:0010very high15 min
15:006high25 min
16:003moderate30 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Bac Ha

During the year, UV levels show distinct seasonal changes, with the highest UV Index typically occurring from March to October. Particularly, May and July peak at a UV Index of 14, categorizing them as extreme, alongside June and August at 13. Residents and visitors should be especially cautious during these months, as the burn time drops to just 10 minutes for unprotected skin. In contrast, January and February also present very high levels with an index of 8 and 10 respectively, maintaining a burn time of 15 minutes. As one moves into the late fall and winter, UV levels decrease; however, November remains a high-risk month with an index of 9. To protect against skin damage, it is crucial to seek shade, wear protective clothing, and apply broad-spectrum sunscreen, particularly during the high-risk months of March to October.

Monthly Maximum UV Index for Bac Ha, Vietnam

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Bac Ha. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec810121214131413121197
Data source: Statistical UV Index data for Bac Ha, 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 Bac Ha UV Index with Other Vietnam Cities

The table above highlights how UV exposure in Bac Ha 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.
Bac Ha's solar exposure compared to other cities in Vietnam. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Hanoi UVI810121213121213131197
Haiphong UVI810121312131313131197
Bac Ha810121214131413121197
Da Nang UVI10121415141314141312109
Ho Chi Minh City UVI101315141412131413131110
Bien Hoa UVI101415151413141413121110