Nizwá climate
Nizwá (Oman) has a hot desert climate (Köppen BWh). The average temperature over the year is 29 °C84 °F, and about 143 mm5.6 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Nizwá climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2679 | 1254 | 1966 | 120.5 |
| Feb | 2983 | 1457 | 2170 | 120.5 |
| Mar | 3290 | 1763 | 2577 | 230.9 |
| Apr | 3799 | 2272 | 3086 | 160.6 |
| May | 42107 | 2679 | 3493 | 90.3 |
| Jun | 44111 | 2883 | 3697 | 120.5 |
| Jul | 44110 | 2985 | 3698 | 160.6 |
| Aug | 43109 | 2883 | 3696 | 130.5 |
| Sep | 41105 | 2678 | 3392 | 70.3 |
| Oct | 3697 | 2272 | 2985 | 70.3 |
| Nov | 3188 | 1864 | 2476 | 90.3 |
| Dec | 2781 | 1457 | 2169 | 80.3 |
| Year | 44111 | 1254 | 2984 | 1435.6 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 49% | 21% | 4.9 | 10:52 |
| Feb | 42% | 24% | 5.7 | 11:22 |
| Mar | 34% | 28% | 6.5 | 11:58 |
| Apr | 26% | 29% | 7.2 | 12:40 |
| May | 22% | 26% | 7.6 | 13:14 |
| Jun | 24% | 33% | 7.3 | 13:32 |
| Jul | 28% | 42% | 6.7 | 13:25 |
| Aug | 30% | 40% | 6.7 | 12:55 |
| Sep | 28% | 30% | 6.5 | 12:15 |
| Oct | 27% | 19% | 6.0 | 11:35 |
| Nov | 43% | 19% | 5.1 | 11:00 |
| Dec | 48% | 18% | 4.6 | 10:44 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Nizwá is like
The warmest month is July, with an average high of 44 °C110 °F and a low of 29 °C85 °F. The coldest is January, when highs average 26 °C79 °F and lows 12 °C54 °F. There is a clear seasonal cycle, with 17.5 °C31.5 °F between the average temperature of the warmest and the coolest month.
It is very dry, with only 143 mm5.6 in of precipitation in an average year. The wettest three-month stretch is February–April, which brings 36% of the annual total. Months with less than 20 mm0.8 in on average: April–February. The wettest month is March (23 mm0.9 in), the driest is September (7 mm0.3 in).
Relative humidity ranges from 22% in May to 49% in January. The clearest skies (lowest average cloud amount, 18%) are typical of December. Average wind speed near the ground ranges from 5 km/h (3 mph) in November to 8 km/h (5 mph) in June. Daylight lasts from about 10.7 hours in December to 13.5 hours in June.
Best time to visit Nizwá
Based on these averages, the most comfortable months for sightseeing and outdoor activities are December–February: average highs of 26 °C79 °F to 29 °C83 °F with 8 mm0.3 in to 12 mm0.5 in of precipitation per month.
The most challenging month is June, which is hot, with average highs of 44 °C111 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Nizwá
- Wetter months (January–April, June–August) — highs 2679 to 44 °C111 °F, lows 1254 to 29 °C85 °F, about 15 mm0.6 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Drier months (May, September–December) — highs 2781 to 42 °C107 °F, lows 1457 to 26 °C79 °F, about 8 mm0.3 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Nizwá compares
Compared with Rustaq, about 52 km to the north, Nizwá is on average 0.4 °C0.7 °F cooler and receives 8% more precipitation (143 mm5.6 in vs 132 mm5.2 in). The difference is largest in January (0.9 °C1.6 °F cooler).
Of the 32 places in Oman covered by World Climates, Nizwá is the 13th warmest by annual mean temperature and the 9th wettest by annual precipitation. See all of them on the Oman climate page.
Places in other countries with the most similar temperature and rainfall pattern: Arif Wala (Pakistan, BWh), Fujairah (United Arab Emirates, BWh) and Ghotki (Pakistan, BWh).
Nearby places
- Saiq (Jebel Akhdar) 19 km · 27 °C81 °F · 143 mm5.6 in
- Bahla 24 km · 28 °C83 °F · 143 mm5.6 in
- Rustaq 52 km · 29 °C84 °F · 132 mm5.2 in
- Samail 59 km · 28 °C82 °F · 130 mm5.1 in
- Adam 62 km · 30 °C85 °F · 134 mm5.3 in
- Mudhaybi 72 km · 29 °C83 °F · 126 mm4.9 in
- Suwaiq 102 km · 29 °C85 °F · 131 mm5.1 in
- Muscat (Seeb) 106 km · 30 °C87 °F · 130 mm5.1 in
Frequently asked questions
What is the warmest month in Nizwá?
July is the warmest month in Nizwá, with an average high of 44 °C (110 °F) and an average low of 29 °C (85 °F).
What is the coldest month in Nizwá?
January is the coldest month, with an average high of 26 °C (79 °F) and an average low of 12 °C (54 °F).
When does it rain the most in Nizwá?
March is the wettest month with about 23 mm (0.9 in) of precipitation; September is the driest with about 7 mm (0.3 in).
What is the best time to visit Nizwá?
Judging by long-term averages, the most comfortable months are December–February.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 714 m, while Nizwá lies at about 511 m. Temperatures on this page were therefore adjusted by +1.3 °C2.4 °F using the standard lapse rate of 6.5 °C per 1,000 m.