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Herāt, Afghanistan climate
BSk Cold semi-arid
Herāt has a seasonal mild-temperate climate (Cold semi-arid, Köppen BSk). The hottest month is July with an average daily high near 33°C, while the coldest is January averaging around −3°C at night. Precipitation totals about 267 mm a year and is strongly seasonal — March alone averages 67 mm while July barely receives 0 mm. Winters bring significant snowfall (62 cm of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 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)Herāt climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 11 | 16 | 23 | 28 | 32 | 33 | 32 | 28 | 23 | 16 | 11 |
| Avg temp (°C) | 3 | 5 | 9 | 15 | 20 | 24 | 25 | 24 | 20 | 15 | 9 | 5 |
| Avg low (°C) | −3 | −1 | 2 | 7 | 12 | 15 | 17 | 16 | 12 | 7 | 3 | −1 |
| Precipitation (mm) | 51 | 62 | 67 | 32 | 5 | 0 | 0 | 0 | 0 | 3 | 18 | 29 |
| Snowfall (cm) | 20 | 16 | 11 | 2 | — | — | — | — | — | 0 | 4 | 10 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 9 | 11 | 16 | 23 | 28 | 32 |
| Avg temp (°C) | 3 | 5 | 9 | 15 | 20 | 24 |
| Avg low (°C) | −3 | −1 | 2 | 7 | 12 | 15 |
| Precipitation (mm) | 51 | 62 | 67 | 32 | 5 | 0 |
| Snowfall (cm) | 20 | 16 | 11 | 2 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 32 | 28 | 23 | 16 | 11 |
| Avg temp (°C) | 25 | 24 | 20 | 15 | 9 | 5 |
| Avg low (°C) | 17 | 16 | 12 | 7 | 3 | −1 |
| Precipitation (mm) | 0 | 0 | 0 | 3 | 18 | 29 |
| Snowfall (cm) | — | — | — | 0 | 4 | 10 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | 0.0 | 0.7 | 5 | 14 | 20 | 12 | 5 | 0.3 | — | — |
| Days with low ≤ 0°C (days) | 23 | 17 | 9 | 2 | 0.1 | — | — | — | — | 1 | 8 | 17 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | — | — | 0.0 | 0.7 | 5 | 14 |
| Days with low ≤ 0°C (days) | 23 | 17 | 9 | 2 | 0.1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with high ≥ 32°C (days) | 20 | 12 | 5 | 0.3 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | 1 | 8 | 17 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 56 | 58 | 54 | 37 | 23 | 18 | 20 | 19 | 27 | 42 | 49 |
| Relative humidity (%) | 59 | 57 | 55 | 48 | 37 | 25 | 21 | 20 | 22 | 31 | 46 | 55 |
| Wind speed (m/s) | 3.2 | 3.4 | 3.0 | 2.8 | 3.3 | 4.6 | 5.7 | 5.5 | 4.2 | 3.2 | 2.8 | 2.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 55 | 56 | 58 | 54 | 37 | 23 |
| Relative humidity (%) | 59 | 57 | 55 | 48 | 37 | 25 |
| Wind speed (m/s) | 3.2 | 3.4 | 3.0 | 2.8 | 3.3 | 4.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 18 | 20 | 19 | 27 | 42 | 49 |
| Relative humidity (%) | 21 | 20 | 22 | 31 | 46 | 55 |
| Wind speed (m/s) | 5.7 | 5.5 | 4.2 | 3.2 | 2.8 | 2.9 |
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.