Maseru weather by month
Maseru runs from about 6°C in July to 22°C in December, with January the wettest month at 95 mm.
warmest month
December
22°C
coolest month
July
6°C
wettest month
January
95 mm
worst air month
June
26 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 19°C | 95 mm | 398 h | 8 |
| February | 21°C | 29 mm | 354 h | 9 |
| March | 20°C | 20 mm | 358 h | 9 |
| April | 14°C | 63 mm | 311 h | 11 |
| May | 13°C | 1 mm | 315 h | 16 |
| June | 7°C | 29 mm | 275 h | 26 |
| July | 6°C | 1 mm | 315 h | 22 |
| August | 11°C | 13 mm | 327 h | 17 |
| September | 14°C | 66 mm | 320 h | 13 |
| October | 16°C | 45 mm | 362 h | 10 |
| November | 19°C | 87 mm | 378 h | 10 |
| December | 22°C | 56 mm | 394 h | 9 |
About 4,107 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 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.