Mandalay weather by month
Mandalay runs from about 21°C in January to 34°C in April, with September the wettest month at 381 mm.
warmest month
April
34°C
coolest month
January
21°C
wettest month
September
381 mm
worst air month
April
47 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 21°C | 1 mm | 313 h | 29 |
| February | 24°C | 0 mm | 311 h | 41 |
| March | 28°C | 20 mm | 338 h | 46 |
| April | 34°C | 4 mm | 339 h | 47 |
| May | 32°C | 162 mm | 347 h | 21 |
| June | 30°C | 146 mm | 302 h | 10 |
| July | 30°C | 157 mm | 283 h | 10 |
| August | 28°C | 318 mm | 247 h | 11 |
| September | 28°C | 381 mm | 241 h | 15 |
| October | 27°C | 252 mm | 285 h | 19 |
| November | 25°C | 40 mm | 297 h | 20 |
| December | 23°C | 0 mm | 322 h | 23 |
About 3,625 hours of sun a year. Roughly 138 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 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.