Live UV forecast for 39 cities
Bolivia stretches from -22.7321° to -10.8258° latitude (Southern hemisphere), so UV conditions differ a lot from region to region. The clear-sky UV index reaches ≈ 10 in Cobija (peak in February), while in Yacuiba the yearly maximum is only ≈ 9.1. As in the whole Southern hemisphere, the sun is strongest from November to February — opposite to Europe and North America.
| Zone | Cities | J | F | M | A | M | J | J | A | S | O | N | D | Peak |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tropical | 39 | 9.5 | 9.5 | 9.1 | 8.3 | 7.5 | 6.9 | 7.1 | 7.9 | 8.7 | 9.3 | 9.5 | 9.5 | 9.5 |
Calculated clear-sky noon peaks at the average latitude of each zone. Real values vary with clouds, altitude and ozone.
Using La Paz as a reference: the UV index reaches 6+ in January, February, March, April, May, June, July, August, September, October, November and December. In the sunniest zones (see table) SPF 30–50+ is needed almost year-round; in the mildest — only in late spring and summer.
The calculated clear-sky maximum is ≈ 10 — in Cobija around February. Values above this occur only near the equator and in high mountains.
Cobija (peak ≈ 10), followed by Guayaramerin and Riberalta. The mildest sun is in Yacuiba (max ≈ 9.1).
In La Paz and similar latitudes the UV reaches 6+ in January, February, March, April, May, June, July, August, September, October, November and December: use SPF 30–50+ on sunny days. Protection is advised from UV 3.
No — the local maximum is ≈ 10. UV 11+ occurs only near the equator, in deserts and high mountains.