expatwhy.

Apia weather by month

Apia runs from about 25°C in August to 28°C in March, with February the wettest month at 440 mm.

warmest month

March

28°C

coolest month

August

25°C

wettest month

February

440 mm

worst air month

June

7 µg/m³

The whole year, month by month.

Monthly climate normals for Apia
MonthAvg tempRainSunPM2.5
January27°C343 mm340 h4
February27°C440 mm240 h5
March28°C180 mm346 h4
April28°C169 mm302 h3
May27°C332 mm304 h4
June26°C144 mm309 h7
July26°C199 mm295 h5
August25°C75 mm309 h6
September26°C156 mm319 h5
October26°C280 mm328 h5
November26°C326 mm287 h4
December26°C281 mm332 h3

About 3,711 hours of sun a year. Roughly 269 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.