Live UV forecast for 319 cities
Colombia stretches from -4.2108° to 12.5786° latitude (Northern hemisphere, partly crossing the equator), so UV conditions differ a lot from region to region. The clear-sky UV index reaches ≈ 10.9 in Puerto Leguizamo (peak in March), while in San Andres the yearly maximum is only ≈ 9.9.
| Zone | Cities | J | F | M | A | M | J | J | A | S | O | N | D | Peak |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Equatorial | 270 | 9.3 | 9.8 | 10.3 | 10.4 | 10.2 | 9.9 | 10 | 10.3 | 10.5 | 10.2 | 9.7 | 9.2 | 10.5 |
| Tropical | 49 | 8.4 | 9.1 | 9.7 | 10 | 10 | 9.8 | 9.9 | 10 | 10 | 9.5 | 8.9 | 8.3 | 10 |
Calculated clear-sky noon peaks at the average latitude of each zone. In the equatorial belt the UV stays high all year round, with two maxima around the equinoxes. Real values vary with clouds, altitude and ozone.
Using Bogota as a reference: the UV index reaches 6+ in January, February, March, April, May, June, July, August, September, October, November and December. In the opposite-hemisphere regions the season is reversed. 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 ≈ 10.9 — in Puerto Leguizamo around March. Values above this occur only near the equator and in high mountains.
Puerto Leguizamo (peak ≈ 10.9), followed by Buesaco and El Doncello. The mildest sun is in San Andres (max ≈ 9.9).
In Bogota 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 ≈ 10.9. UV 11+ occurs only near the equator, in deserts and high mountains.