UV Index in Trongsa, Bhutan

Last updated: May 3, 2025

In the picturesque town of Trongsa, Bhutan, awareness of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels enables residents and visitors alike to prevent sunburn and reduce the risk of long-term skin damage. Trongsa's Cwb climate features moderate temperatures with heightened UV exposure, especially during midday when levels can soar to a striking 16. Being mindful of the UV Index can empower you to enjoy the outdoors while safeguarding your skin from harmful rays.

Hourly UV Index in Trongsa

The UV Index paints a clear picture of the day's sun intensity, peaking dramatically around 12 PM with a scorching 16. Beginning at 07:00 with a mild 2, the index swiftly climbs, crossing 5 by 08:00 and hitting 9 at 09:00. The sun's power becomes undeniable by 10:00, reaching 13 and escalating to 15 by 11:00. As the afternoon rolls in, the UV exposure begins to taper, dropping to 14 at 13:00 and declining steadily through 11 at 14:00, and down to 7 at 15:00. The evening brings a gentle relief, with the index falling to 4 by 16:00, and finally dwindling to a mere 1 by 18:00 and 0 by 19:00. Stay safe and protect yourself from the sun during the 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	5	moderate	30 min
09:00	9	very high	15 min
10:00	13	extreme	10 min
11:00	15	extreme	10 min
12:00	16	extreme	10 min
13:00	14	extreme	10 min
14:00	11	extreme	10 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Trongsa

Throughout the year, UV exposure varies significantly, reaching its peak in the summer months. January and December have lower UV Index levels (7), categorized as high, with burn times of 25 minutes. However, from February to October, the UV Index escalates, hitting very high levels in February and November, and soaring to extreme categories from March to September. The highest UV Index is recorded in May, June, and July at 16, with a rapid burn time of just 10 minutes. March marks the start of these critical conditions with a UV Index of 12, and all months from April to September are considered high-risk. Visitors and residents should take extra precautions during these high-risk months by using broad-spectrum sunscreen, wearing protective clothing, and seeking shade to minimize harmful UV exposure.

Monthly Maximum UV Index for Trongsa, Bhutan

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

The table above highlights how UV exposure in Trongsa 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.

Trongsa's solar exposure compared to other cities in Bhutan. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Phuntsholing UVI	5	7	9	10	11	13	14	13	12	10	8	6
Pemagatshel UVI	6	8	10	13	13	14	15	14	13	11	8	6
Tsirang UVI	6	9	10	12	13	14	15	14	13	11	8	6
Punakha UVI	8	10	12	14	15	15	16	15	14	11	9	6
Thimphu UVI	8	10	13	14	16	16	16	15	14	12	9	7
Trongsa	7	10	12	14	16	16	16	15	14	12	9	7