expatwhy.

Kuching weather by month

Kuching runs from about 25°C in August to 27°C in July, with May the wettest month at 1139 mm.

warmest month

July

27°C

coolest month

August

25°C

wettest month

May

1139 mm

worst air month

April

22 µg/m³

The whole year, month by month.

Monthly climate normals for Kuching
MonthAvg tempRainSunPM2.5
January26°C800 mm224 h10
February26°C494 mm219 h11
March26°C1128 mm222 h13
April26°C865 mm210 h22
May26°C1139 mm194 h13
June26°C619 mm221 h14
July27°C131 mm281 h22
August25°C512 mm206 h18
September27°C199 mm255 h17
October26°C250 mm239 h13
November26°C432 mm233 h14
December26°C450 mm230 h10

About 2,734 hours of sun a year. Roughly 328 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 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.