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UV Index in Ecuador

Live UV forecast for 71 cities

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UV climate of Ecuador: overview

Ecuador stretches from -4.328° to 1.2863° latitude (Southern hemisphere, partly crossing the equator), so UV conditions differ a lot from region to region. The clear-sky UV index reaches ≈ 10.9 in Atuntaqui (peak in March), while in Cariamanga the yearly maximum is only ≈ 10.5. As in the whole Southern hemisphere, the sun is strongest from November to February — opposite to Europe and North America.

UV index by month by climate zone

ZoneCitiesJFMAMJJASONDPeak
Equatorial71 10.1 10.5 10.8 10.6 10.1 9.7 9.9 10.4 10.7 10.7 10.4 10.1 10.8

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.

Sunniest cities in Ecuador (highest UV)

Atuntaqui · 10.9 in March Cayambe · 10.9 in March Ibarra · 10.9 in March Machachi · 10.9 in March Nueva Loja · 10.9 in March

Cities with the mildest sun

Cariamanga · max 10.5 Zamora · max 10.6 Santa Rosa · max 10.6 Pinas · max 10.6 Pasaje · max 10.6

When do you need SPF in Ecuador?

Using Quito 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.

FAQ: UV index in Ecuador

What is the highest UV index in Ecuador?

The calculated clear-sky maximum is ≈ 10.9 — in Atuntaqui around March. Values above this occur only near the equator and in high mountains.

Which city in Ecuador is the sunniest?

Atuntaqui (peak ≈ 10.9), followed by Cayambe and Ibarra. The mildest sun is in Cariamanga (max ≈ 10.5).

When is SPF needed in Ecuador?

In Quito 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.

Is UV 11+ possible in Ecuador?

No — the local maximum is ≈ 10.9. UV 11+ occurs only near the equator, in deserts and high mountains.