Yazd, Iran climate
BWh Hot desert
Yazd has a strongly seasonal warm-temperate climate (Hot desert, Köppen BWh). The hottest month is July with an average daily high near 40°C, while the coldest is January averaging around 1°C at night. Precipitation totals about 75 mm a year and is strongly seasonal — June alone averages 21 mm while August barely receives 0 mm.
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)Yazd climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 13 | 17 | 21 | 27 | 32 | 38 | 40 | 38 | 35 | 28 | 20 | 15 |
| Avg temp (°C) | 7 | 10 | 15 | 20 | 26 | 31 | 33 | 31 | 27 | 21 | 13 | 9 |
| Avg low (°C) | 1 | 4 | 8 | 14 | 19 | 24 | 26 | 24 | 20 | 14 | 7 | 2 |
| Precipitation (mm) | 9 | 7 | 5 | 6 | 5 | 21 | 0 | 0 | 2 | 3 | 9 | 8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 13 | 17 | 21 | 27 | 32 | 38 |
| Avg temp (°C) | 7 | 10 | 15 | 20 | 26 | 31 |
| Avg low (°C) | 1 | 4 | 8 | 14 | 19 | 24 |
| Precipitation (mm) | 9 | 7 | 5 | 6 | 5 | 21 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 40 | 38 | 35 | 28 | 20 | 15 |
| Avg temp (°C) | 33 | 31 | 27 | 21 | 13 | 9 |
| Avg low (°C) | 26 | 24 | 20 | 14 | 7 | 2 |
| Precipitation (mm) | 0 | 0 | 2 | 3 | 9 | 8 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 46 | 47 | 52 | 54 | 46 | 30 | 32 | 27 | 25 | 31 | 43 | 43 |
| Relative humidity (%) | 49 | 44 | 37 | 33 | 25 | 17 | 17 | 17 | 18 | 27 | 39 | 47 |
| Wind speed (m/s) | 2.3 | 2.7 | 2.8 | 2.7 | 2.7 | 2.9 | 3.1 | 2.8 | 2.3 | 2.0 | 1.9 | 2.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 46 | 47 | 52 | 54 | 46 | 30 |
| Relative humidity (%) | 49 | 44 | 37 | 33 | 25 | 17 |
| Wind speed (m/s) | 2.3 | 2.7 | 2.8 | 2.7 | 2.7 | 2.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 32 | 27 | 25 | 31 | 43 | 43 |
| Relative humidity (%) | 17 | 17 | 18 | 27 | 39 | 47 |
| Wind speed (m/s) | 3.1 | 2.8 | 2.3 | 2.0 | 1.9 | 2.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Yazd Shahid Sadooghi, a weather station, about 9 km from the city centre. The underlying daily records come from NOAA's global station network.
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.