Kuala Lumpur weather by month
Kuala Lumpur runs from about 26°C in January to 28°C in July, with May the wettest month at 581 mm.
warmest month
July
28°C
coolest month
January
26°C
wettest month
May
581 mm
worst air month
March
47 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 26°C | 434 mm | 225 h | 44 |
| February | 27°C | 178 mm | 290 h | 37 |
| March | 28°C | 298 mm | 291 h | 47 |
| April | 27°C | 375 mm | 228 h | 39 |
| May | 27°C | 581 mm | 202 h | 38 |
| June | 27°C | 269 mm | 256 h | 37 |
| July | 28°C | 127 mm | 288 h | 41 |
| August | 27°C | 494 mm | 267 h | 40 |
| September | 27°C | 312 mm | 261 h | 42 |
| October | 27°C | 254 mm | 293 h | 35 |
| November | 27°C | 354 mm | 203 h | 27 |
| December | 26°C | 520 mm | 197 h | 36 |
About 3,001 hours of sun a year. Roughly 323 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.