UV Index in Uyuni, Bolivia

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents and visitors in Uyuni, Bolivia, a region known for its striking landscapes and high-altitude climate. With UV levels peaking at 10 during midday, awareness of these readings is vital for preventing sunburn and protecting skin health. The BSk climate means that although Uyuni has a dry atmosphere, the sun's intensity can pose significant risks, especially during summer months. Staying informed about UV exposure helps ensure enjoyable and safe outdoor experiences in this breathtaking part of the world.

Hourly UV Index in Uyuni

The UV Index data for the day presents a clear pattern of increasing and then decreasing exposure. Starting at a low of 1 at 07:00, the index climbs steadily, peaking at a maximum of 10 between 12:00 and 13:00—indicating high-risk sun exposure. As the afternoon progresses, the levels begin to dip, dropping to 6 by 15:00 and continuing downward to 1 by 17:00. Finally, the UV Index settles to 0 after 18:00, marking the end of a day with notable sun intensity that calls for vigilant sun protection during 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	1	low	45 min
08:00	2	low	45 min
09:00	4	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 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 Uyuni

The UV Index experiences significant fluctuations throughout the year, with January, February, and the latter part of the year (October, November, and December) consistently registering an extreme index of 19 and a quick burn time of just 10 minutes. The high-risk months typically span from January to April, maintaining an extreme exposure category, while June and July see a slight reduction to a very high index of 9 and 10, respectively. Visitors and residents should take precautions during these months by applying sunscreen, wearing protective clothing, and limiting sun exposure, especially during peak hours when the risk is elevated. Remember, even on cloudy days, UV rays can penetrate the atmosphere, so staying vigilant is key to sun safety year-round.

Monthly Maximum UV Index for Uyuni, Bolivia

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

The table above highlights how UV exposure in Uyuni compares to other major locations across Bolivia. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Uyuni's solar exposure compared to other cities in Bolivia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Santa Cruz de la Sierra UVI	15	15	14	13	10	8	9	10	12	15	16	16
Sucre UVI	17	17	16	14	11	9	10	12	15	17	17	18
Sacaba UVI	17	18	17	15	12	10	10	13	15	17	18	19
Cochabamba UVI	18	18	17	15	12	10	11	13	16	18	18	19
Uyuni	19	19	17	15	12	9	10	13	16	19	19	19
Oruro UVI	19	19	17	16	13	10	11	14	16	19	19	19