expatwhy.

Otavalo weather by month

Otavalo runs from about 14°C in July to 15°C in March, with May the wettest month at 172 mm.

warmest month

March

15°C

coolest month

July

14°C

wettest month

May

172 mm

worst air month

August

14 µg/m³

The whole year, month by month.

Monthly climate normals for Otavalo
MonthAvg tempRainSunPM2.5
January15°C40 mm330 h4
February15°C132 mm296 h8
March15°C149 mm330 h9
April15°C123 mm304 h7
May15°C172 mm298 h8
June14°C109 mm303 h5
July14°C31 mm348 h8
August15°C22 mm346 h14
September15°C11 mm335 h8
October15°C65 mm340 h7
November15°C96 mm309 h6
December14°C140 mm335 h6

About 3,874 hours of sun a year. Roughly 109 rainy days a year.

These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.

where these numbers come from

  • · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
  • · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.

Last reviewed 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.