Najaf, Iraq climate
BWh Hot desert
Najaf has a strongly seasonal tropical climate (Hot desert, Köppen BWh). The hottest month is July with an average daily high near 46°C, while the coldest is January averaging around 4°C at night. Precipitation totals about 100 mm a year and is strongly seasonal — January alone averages 20 mm while July barely receives 0 mm.
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Summers
Extreme heat
Highs near 46°C in July.
About 194 days a year above 32 °C
❄️
Winters
Chilly
Lows near 4°C in January.
About 6 freezing nights a year
🌧️
Rain
Very dry
About 100 mm of rain a year.
Wettest in January
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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)Najaf climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 17 | 20 | 26 | 32 | 39 | 44 | 46 | 46 | 42 | 35 | 25 | 19 |
| Avg temp (°C) | 11 | 13 | 18 | 24 | 31 | 35 | 37 | 37 | 34 | 28 | 18 | 12 |
| Avg low (°C) | 4 | 6 | 10 | 16 | 23 | 27 | 29 | 29 | 25 | 20 | 12 | 6 |
| Precipitation (mm) | 20 | 14 | 12 | 11 | 4 | 0 | 0 | 0 | 0 | 4 | 18 | 17 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 17 | 20 | 26 | 32 | 39 | 44 |
| Avg temp (°C) | 11 | 13 | 18 | 24 | 31 | 35 |
| Avg low (°C) | 4 | 6 | 10 | 16 | 23 | 27 |
| Precipitation (mm) | 20 | 14 | 12 | 11 | 4 | 0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 46 | 46 | 42 | 35 | 25 | 19 |
| Avg temp (°C) | 37 | 37 | 34 | 28 | 18 | 12 |
| Avg low (°C) | 29 | 29 | 25 | 20 | 12 | 6 |
| Precipitation (mm) | 0 | 0 | 0 | 4 | 18 | 17 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | 2 | 15 | 29 | 30 | 31 | 31 | 30 | 25 | 1 | — |
| Days with low ≤ 0°C (days) | 3 | 2 | 0.1 | — | — | — | — | — | — | — | — | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | 2 | 15 | 29 | 30 |
| Days with low ≤ 0°C (days) | 3 | 2 | 0.1 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 31 | 31 | 30 | 25 | 1 | — |
| Days with low ≤ 0°C (days) | — | — | — | — | — | 1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 43 | 42 | 44 | 46 | 38 | 17 | 16 | 14 | 19 | 33 | 40 | 43 |
| Relative humidity (%) | 57 | 51 | 39 | 31 | 22 | 16 | 15 | 16 | 18 | 26 | 44 | 55 |
| Wind speed (m/s) | 2.1 | 2.2 | 2.3 | 2.4 | 2.7 | 3.4 | 3.6 | 3.0 | 2.4 | 2.1 | 2.1 | 2.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 43 | 42 | 44 | 46 | 38 | 17 |
| Relative humidity (%) | 57 | 51 | 39 | 31 | 22 | 16 |
| Wind speed (m/s) | 2.1 | 2.2 | 2.3 | 2.4 | 2.7 | 3.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 16 | 14 | 19 | 33 | 40 | 43 |
| Relative humidity (%) | 15 | 16 | 18 | 26 | 44 | 55 |
| Wind speed (m/s) | 3.6 | 3.0 | 2.4 | 2.1 | 2.1 | 2.1 |
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.