UV Index in Tarija, Bolivia

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Tarija, Bolivia, especially given the region's Cwb climate, which combines mild temperatures with significant sunlight exposure. With UV levels peaking at a high 8 around midday, awareness of these indices can help you prevent sunburn and protect your skin health. Proper knowledge of UV risks empowers individuals to take proactive measures, ensuring enjoyable outdoor experiences while safeguarding against harmful effects. Whether you’re hiking in the beautiful Andes or simply enjoying the vibrant local culture, being informed about UV levels is an essential part of staying safe under the Tarija sun.

Hourly UV Index in Tarija

At sunrise, the UV Index begins at a gentle 1 at 07:00, rising gradually as the sun climbs higher. By 09:00, it reaches 3, indicating a moderate level of UV radiation. The heat of the day peaks at 12:00 with a high of 8, suggesting it’s time to seek shade or apply sunscreen. As the afternoon progresses, the index slightly drops to 7 at 13:00 and continues to decline, settling at 3 by 15:00. As the sun starts to set, the risk diminishing to 1 at 17:00 and finally dropping to 0 by 18:00, signaling a safer time for outdoor activities as the day winds down. Be mindful of the midday sun to protect your skin!

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	1	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	8	very high	15 min
13:00	7	high	25 min
14:00	6	high	25 min
15:00	3	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Tarija

The UV Index shows significant seasonal variation with extreme levels persisting from January to April, peaking in December at 18. High-risk months are predominantly from January through April and again in November and December, where the burn time is a mere 10 minutes. Even in the very high category (May to July), a burn time of 15 minutes necessitates caution. Visitors and residents should take precautions throughout the year, especially during these high-risk months, by applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak sun hours to minimize UV exposure and potential skin damage.

Monthly Maximum UV Index for Tarija, Bolivia

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

The table above highlights how UV exposure in Tarija 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.

Tarija'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
Tarija	17	17	16	13	10	8	9	11	14	16	17	18
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
Oruro UVI	19	19	17	16	13	10	11	14	16	19	19	19