Climate averages 1991–2020
Nizwá weather
in May.
A very hot, very dry month: the joint 3rd warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a very hot month in Nizwá: daytime highs average 40.0°C and nights cool to about 25.9°C. By daytime temperature it is the joint 3rd warmest of the 12 months.
Expect about 4.7 mm of rain on roughly 2 days, which makes May a very dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 14 min on an average May day.
The nearest other city in this atlas is Rustaq (52 km away). In May its highs average 40.9°C, 1.0°C warmer than Nizwá, with 2.3 mm of rain.
Among the 12 cities listed in Oman, Nizwá ranks joint 5th of 12 for the warmest May highs and joint 10th of 12 for the driest May (rainfall, lowest first). The mean May high of those 12 cities is 38.7°C; Nizwá is 1.3°C warmer than that mean.
From May to June, average highs rise by 1.8°C to 41.8°C, and monthly rainfall rises from 4.7 mm to 7.6 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Nizwá climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.6°C13.2°C | 13.2°C | 7.4 | 1.3 | 10.911 h |
| February | 27.3°C14.9°C | 14.9°C | 5.6 | 1.1 | 11.411 h |
| March | 30.9°C17.9°C | 17.9°C | 20 | 2.3 | 12.012 h |
| April | 35.8°C22.3°C | 22.3°C | 11 | 2.1 | 12.713 h |
| May, selected | 40.0°C25.9°C | 25.9°C | 4.7 | 1.6 | 13.213 h |
| June | 41.8°C27.8°C | 27.8°C | 7.6 | 1.6 | 13.514 h |
| July | 41.1°C28.5°C | 28.5°C | 16 | 3.4 | 13.413 h |
| August | 40.0°C27.7°C | 27.7°C | 15 | 4.0 | 12.913 h |
| September | 38.0°C25.8°C | 25.8°C | 2.3 | 0.7 | 12.312 h |
| October | 35.1°C22.5°C | 22.5°C | 6.2 | 1.2 | 11.612 h |
| November | 30.0°C18.4°C | 18.4°C | 11 | 1.2 | 11.111 h |
| December | 26.5°C14.7°C | 14.7°C | 5.8 | 0.8 | 10.811 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Rustaq in MayOman · 52 kmHigh 40.9°C · Low 28.7°C · 2.3 mm rain
- Samā’il in MayOman · 59 kmHigh 40.2°C · Low 28.0°C · 4.7 mm rain
- As Suwayq in MayOman · 102 kmHigh 40.0°C · Low 26.5°C · 0.4 mm rain
- Seeb in MayOman · 106 kmHigh 36.6°C · Low 28.0°C · 0 mm rain
- ‘Ibrī in MayOman · 109 kmHigh 40.2°C · Low 24.7°C · 1.1 mm rain
- Muscat in MayOman · 115 kmHigh 36.5°C · Low 27.8°C · 0.9 mm rain
- Şaḩam in MayOman · 153 kmHigh 39.0°C · Low 26.5°C · 0.2 mm rain
- Sohar in MayOman · 178 kmHigh 39.5°C · Low 26.3°C · 1.4 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Nizwá) is explained once on the Nizwá year overview and on the Sources, method and limits page.