UV Index in Ha, Bhutan

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Ha, Bhutan, as it highlights the potential risks of harmful ultraviolet radiation. By keeping an eye on the UV levels, you can effectively prevent sunburn and protect your skin's health from long-term damage. In Ha's Cwb climate, elevated UV levels typically occur between late morning and early afternoon, peaking at a significant 17 between 12:00 PM and 1:00 PM. With such risks associated with the region's unique climate, staying informed about the UV Index is your first line of defense against sun-related health issues.

Hourly UV Index in Ha

As the sun rises, the UV Index begins its climb, hitting a mild 2 at 07:00. By 08:00, it increases to 5, signaling a good time for sun safety. The intensity peaks dramatically at 10:00, reaching a striking 13, and continues to soar to its maximum of 17 at 12:00, making midday the most hazardous for skin exposure. After this peak, the numbers gradually decline, falling to 15 by 13:00 and tapering down to 8 at 15:00. As the afternoon progresses, the index drops further, reaching 4 by 16:00 and nearly fading away to a gentle 1 by 18:00. Finally, as twilight approaches, the UV threat dwindles to 0 at 19:00, marking a safe end to the day for outdoor activities. Stay protected, especially 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	5	moderate	30 min
09:00	9	very high	15 min
10:00	13	extreme	10 min
11:00	16	extreme	10 min
12:00	17	extreme	10 min
13:00	15	extreme	10 min
14:00	12	extreme	10 min
15:00	8	very high	15 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 Ha

Throughout the year, UV radiation levels fluctuate significantly, with the highest risk months occurring from February to September, when the UV Index consistently reaches extreme levels of 11 or higher. In April, May, June, and July, a peak UV Index of 17 poses considerable danger, allowing for a burn time of only 10 minutes. Visitors and residents are advised to take rigorous precautions during these months, including wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours. The first half of the year until September requires vigilant UV protection, while the risks decrease in December with a lower UV Index of 7 and a longer burn time of 25 minutes. Overall, it is crucial to monitor daily UV levels and make informed choices to safeguard skin health.

Monthly Maximum UV Index for Ha, Bhutan

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

The table above highlights how UV exposure in Ha 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.

Ha'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
Ha	8	11	13	17	17	17	17	16	15	13	10	7