Haymā’, Oman climate
BWh Hot desert
Haymā’ has a seasonal tropical climate (Hot desert, Köppen BWh). The hottest month is July with an average daily high near 43°C, while the coldest is January averaging around 13°C at night. Precipitation totals about 23 mm a year and is strongly seasonal — March alone averages 6 mm while September barely receives 0 mm.
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Summers
Extreme heat
Highs near 43°C in July.
About 247 days a year above 32 °C
❄️
Winters
Mild
Lows near 13°C in January.
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Rain
Very dry
About 23 mm of rain a year.
Wettest in March
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Sky & trend
Sunny
Clear skies most days.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Haymā’ climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 29 | 33 | 37 | 41 | 43 | 43 | 42 | 40 | 36 | 32 | 28 |
| Avg temp (°C) | 20 | 22 | 25 | 29 | 33 | 35 | 36 | 35 | 32 | 29 | 25 | 22 |
| Avg low (°C) | 13 | 15 | 18 | 21 | 25 | 27 | 28 | 27 | 24 | 21 | 19 | 15 |
| Precipitation (mm) | 1 | 0 | 6 | 2 | 0 | 4 | 1 | 1 | 0 | 1 | 1 | 4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 29 | 33 | 37 | 41 | 43 |
| Avg temp (°C) | 20 | 22 | 25 | 29 | 33 | 35 |
| Avg low (°C) | 13 | 15 | 18 | 21 | 25 | 27 |
| Precipitation (mm) | 1 | 0 | 6 | 2 | 0 | 4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 43 | 42 | 40 | 36 | 32 | 28 |
| Avg temp (°C) | 36 | 35 | 32 | 29 | 25 | 22 |
| Avg low (°C) | 28 | 27 | 24 | 21 | 19 | 15 |
| Precipitation (mm) | 1 | 1 | 0 | 1 | 1 | 4 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 0.2 | 3 | 19 | 29 | 31 | 30 | 31 | 31 | 30 | 31 | 11 | 0.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 0.2 | 3 | 19 | 29 | 31 | 30 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 31 | 31 | 30 | 31 | 11 | 0.4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 17 | 18 | 27 | 26 | 21 | 31 | 39 | 32 | 21 | 14 | 13 | 15 |
| Relative humidity (%) | 53 | 50 | 45 | 39 | 37 | 35 | 35 | 40 | 44 | 45 | 51 | 54 |
| Wind speed (mph) | 5.8 | 6.6 | 6.9 | 6.6 | 7.4 | 8.2 | 9.3 | 9.1 | 7.7 | 5.7 | 5.1 | 5.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 17 | 18 | 27 | 26 | 21 | 31 |
| Relative humidity (%) | 53 | 50 | 45 | 39 | 37 | 35 |
| Wind speed (mph) | 5.8 | 6.6 | 6.9 | 6.6 | 7.4 | 8.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 32 | 21 | 14 | 13 | 15 |
| Relative humidity (%) | 35 | 40 | 44 | 45 | 51 | 54 |
| Wind speed (mph) | 9.3 | 9.1 | 7.7 | 5.7 | 5.1 | 5.4 |
Methodology & sources
Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.