Macau weather by month
Macau runs from about 17°C in January to 29°C in July, with May the wettest month at 403 mm.
warmest month
July
29°C
coolest month
January
17°C
wettest month
May
403 mm
worst air month
December
33 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 17°C | 11 mm | 243 h | 29 |
| February | 18°C | 28 mm | 195 h | 24 |
| March | 20°C | 75 mm | 192 h | 20 |
| April | 26°C | 327 mm | 239 h | 17 |
| May | 25°C | 403 mm | 220 h | 14 |
| June | 28°C | 278 mm | 237 h | 12 |
| July | 29°C | 229 mm | 316 h | 16 |
| August | 29°C | 297 mm | 260 h | 12 |
| September | 28°C | 362 mm | 260 h | 11 |
| October | 26°C | 13 mm | 286 h | 20 |
| November | 22°C | 116 mm | 216 h | 24 |
| December | 17°C | 1 mm | 270 h | 33 |
About 2,934 hours of sun a year. Roughly 196 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.