Lusaka weather by month
Lusaka runs from about 18°C in June to 25°C in December, with January the wettest month at 229 mm.
warmest month
December
25°C
coolest month
June
18°C
wettest month
January
229 mm
worst air month
September
19 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 21°C | 229 mm | 279 h | 14 |
| February | 23°C | 22 mm | 351 h | 13 |
| March | 22°C | 43 mm | 346 h | 9 |
| April | 21°C | 38 mm | 300 h | 6 |
| May | 19°C | 0 mm | 345 h | 7 |
| June | 18°C | 1 mm | 318 h | 9 |
| July | 19°C | 0 mm | 339 h | 8 |
| August | 20°C | 1 mm | 354 h | 12 |
| September | 23°C | 0 mm | 349 h | 19 |
| October | 24°C | 44 mm | 339 h | 15 |
| November | 24°C | 83 mm | 332 h | 10 |
| December | 25°C | 66 mm | 360 h | 10 |
About 4,012 hours of sun a year. Roughly 52 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.