Nizwa weather by month
Nizwa runs from about 21°C in December to 37°C in July, with April the wettest month at 131 mm.
warmest month
July
37°C
coolest month
December
21°C
wettest month
April
131 mm
worst air month
July
43 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 22°C | 0 mm | 325 h | 25 |
| February | 22°C | 26 mm | 301 h | 28 |
| March | 24°C | 80 mm | 318 h | 26 |
| April | 27°C | 131 mm | 321 h | 37 |
| May | 33°C | 5 mm | 362 h | 42 |
| June | 36°C | 0 mm | 341 h | 42 |
| July | 37°C | 0 mm | 323 h | 43 |
| August | 33°C | 14 mm | 322 h | 40 |
| September | 32°C | 1 mm | 348 h | 23 |
| October | 30°C | 16 mm | 335 h | 16 |
| November | 27°C | 0 mm | 308 h | 14 |
| December | 21°C | 0 mm | 309 h | 17 |
About 3,913 hours of sun a year. Roughly 28 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.