Muscat weather by month
Muscat runs from about 23°C in December to 37°C in July, with April the wettest month at 57 mm.
warmest month
July
37°C
coolest month
December
23°C
wettest month
April
57 mm
worst air month
July
38 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 23°C | 4 mm | 316 h | 25 |
| February | 23°C | 51 mm | 292 h | 27 |
| March | 25°C | 6 mm | 322 h | 23 |
| April | 29°C | 57 mm | 334 h | 31 |
| May | 34°C | 2 mm | 362 h | 35 |
| June | 37°C | 0 mm | 353 h | 36 |
| July | 37°C | 0 mm | 324 h | 38 |
| August | 32°C | 1 mm | 322 h | 32 |
| September | 33°C | 2 mm | 350 h | 26 |
| October | 31°C | 27 mm | 325 h | 22 |
| November | 27°C | 0 mm | 307 h | 18 |
| December | 23°C | 1 mm | 310 h | 17 |
About 3,917 hours of sun a year. Roughly 15 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.