expatwhy.

Quito weather by month

Quito runs from about 12°C in June to 13°C in September, with April the wettest month at 475 mm.

warmest month

September

13°C

coolest month

June

12°C

wettest month

April

475 mm

worst air month

March

15 µg/m³

The whole year, month by month.

Monthly climate normals for Quito
MonthAvg tempRainSunPM2.5
January13°C211 mm323 h10
February13°C466 mm290 h13
March13°C324 mm319 h15
April13°C475 mm289 h11
May13°C270 mm300 h9
June12°C190 mm316 h7
July12°C35 mm355 h7
August13°C52 mm352 h10
September13°C57 mm330 h10
October12°C300 mm336 h12
November12°C200 mm306 h11
December12°C465 mm313 h11

About 3,829 hours of sun a year. Roughly 252 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 2026-05-22. Full method, licences and the list of sources we rejected are on the methodology page.