expatwhy.

Kingston weather by month

Kingston runs from about 25°C in February to 29°C in August, with November the wettest month at 257 mm.

warmest month

August

29°C

coolest month

February

25°C

wettest month

November

257 mm

worst air month

June

14 µg/m³

The whole year, month by month.

Monthly climate normals for Kingston
MonthAvg tempRainSunPM2.5
January26°C10 mm335 h9
February25°C23 mm305 h9
March26°C21 mm355 h9
April27°C65 mm356 h9
May28°C48 mm362 h11
June28°C71 mm289 h14
July28°C196 mm342 h12
August29°C38 mm351 h11
September28°C92 mm317 h10
October28°C71 mm341 h9
November26°C257 mm234 h10
December26°C47 mm309 h9

About 3,896 hours of sun a year. Roughly 95 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.