Mbabane weather by month
Mbabane runs from about 13°C in June to 21°C in December, with March the wettest month at 164 mm.
warmest month
December
21°C
coolest month
June
13°C
wettest month
March
164 mm
worst air month
August
16 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 19°C | 148 mm | 346 h | 9 |
| February | 20°C | 116 mm | 290 h | 11 |
| March | 19°C | 164 mm | 286 h | 10 |
| April | 17°C | 136 mm | 276 h | 13 |
| May | 16°C | 15 mm | 312 h | 10 |
| June | 13°C | 13 mm | 295 h | 13 |
| July | 15°C | 1 mm | 301 h | 14 |
| August | 17°C | 45 mm | 285 h | 16 |
| September | 17°C | 79 mm | 269 h | 14 |
| October | 17°C | 78 mm | 322 h | 15 |
| November | 19°C | 107 mm | 291 h | 10 |
| December | 21°C | 149 mm | 313 h | 8 |
About 3,586 hours of sun a year. Roughly 107 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.