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UV Index in Thimphu, Bhutan

Last updated: May 3, 2025

Understanding the UV Index in Thimphu, Bhutan, is essential for protecting your skin and overall health. With its high elevation and diverse climate, Thimphu experiences significant UV exposure, especially during midday hours, where the index can reach as high as 16. Being aware of these UV levels is crucial for preventing sunburn and long-term skin damage. In around 10:00 AM to 2:00 PM, when the UV Index peaks, residents and visitors should take extra precautions to safeguard their skin against harmful rays, making knowledge of the local UV conditions a vital aspect of daily life in this beautiful city.

Hourly UV Index in Thimphu

As the sun rises, UV Index levels gradually climb, starting at a modest 2 at 07:00. By 08:00, the intensity picks up, reaching 5, but it's at 09:00 that the sun truly asserts its power with a notable 9. The peak occurs between 11:00 and 12:00, where it skyrockets to an impressive 15 and 16, making it essential to seek shade and apply sunscreen. A steady decline follows, dropping to 11 by 14:00 and 7 by 15:00. As the afternoon fades, the UV Index dwindles into safer numbers—4 at 16:00, 2 at 17:00, and gracefully tapering off to 1 by 18:00 before settling at 0 by 19:00. Utilize this data to plan your outdoor activities wisely and protect your skin when the sun is at its strongest!

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
08:005moderate30 min
09:009very high15 min
10:0012extreme10 min
11:0015extreme10 min
12:0016extreme10 min
13:0014extreme10 min
14:0011extreme10 min
15:007high25 min
16:004moderate30 min
17:002low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Thimphu

Throughout the year, UV exposure significantly varies, with the highest UV Index levels occurring from March to October. During this peak period, particularly in April, May, June, July, and August, the UV Index reaches extreme levels (14-16), requiring only 10 minutes of sun exposure before burning occurs. Visitors and residents should take extra precautions during these months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade when necessary. The high-risk months are February through October, with the most critical months in April and May. As the year progresses, the UV Index gradually decreases, dropping to very high levels in November and high in December, where burn times increase to 15 and 25 minutes, respectively. Staying informed and protected is crucial for everyone's health throughout all seasons.

Monthly Maximum UV Index for Thimphu, Bhutan

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Thimphu. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec810131416161615141297
Data source: Statistical UV Index data for Thimphu, 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 Thimphu UV Index with Other Bhutan Cities

The table above highlights how UV exposure in Thimphu compares to other major locations across Bhutan. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Thimphu's solar exposure compared to other cities in Bhutan. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Phuntsholing UVI5791011131413121086
Pemagatshel UVI68101313141514131186
Tsirang UVI69101213141514131186
Punakha UVI810121415151615141196
Thimphu810131416161615141297