Dhaka weather by month
Dhaka runs from about 17°C in January to 31°C in April, with August the wettest month at 477 mm.
warmest month
April
31°C
coolest month
January
17°C
wettest month
August
477 mm
worst air month
January
90 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 17°C | 1 mm | 301 h | 90 |
| February | 21°C | 17 mm | 286 h | 78 |
| March | 25°C | 66 mm | 304 h | 63 |
| April | 31°C | 7 mm | 326 h | 39 |
| May | 30°C | 278 mm | 306 h | 39 |
| June | 30°C | 257 mm | 252 h | 35 |
| July | 29°C | 203 mm | 276 h | 22 |
| August | 28°C | 477 mm | 217 h | 21 |
| September | 29°C | 272 mm | 261 h | 28 |
| October | 27°C | 315 mm | 273 h | 47 |
| November | 24°C | 2 mm | 307 h | 60 |
| December | 21°C | 1 mm | 296 h | 68 |
About 3,405 hours of sun a year. Roughly 171 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.