expatwhy.

Geelong weather by month

Geelong runs from about 10°C in July to 20°C in February, with November the wettest month at 83 mm.

warmest month

February

20°C

coolest month

July

10°C

wettest month

November

83 mm

worst air month

May

6 µg/m³

The whole year, month by month.

Monthly climate normals for Geelong
MonthAvg tempRainSunPM2.5
January19°C49 mm329 h6
February20°C1 mm346 h5
March19°C16 mm324 h5
April14°C66 mm222 h5
May12°C36 mm222 h6
June10°C16 mm181 h5
July10°C56 mm179 h5
August12°C38 mm256 h5
September12°C43 mm242 h3
October14°C63 mm322 h4
November17°C83 mm317 h4
December19°C34 mm367 h5

About 3,307 hours of sun a year. Roughly 51 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.