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Saltillo, Coahuila climate
BSh Hot semi-arid
Saltillo has a mildly seasonal warm-temperate climate (Hot semi-arid, Köppen BSh). The hottest month is June with an average daily high near 30°C, while the coldest is January averaging around 5°C at night. Precipitation totals about 329 mm a year and is strongly seasonal — September alone averages 63 mm while November barely receives 9 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)Saltillo climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 20 | 22 | 25 | 28 | 30 | 30 | 29 | 29 | 26 | 25 | 23 | 20 |
| Avg temp (°C) | 12 | 15 | 17 | 20 | 23 | 23 | 23 | 23 | 20 | 19 | 16 | 13 |
| Avg low (°C) | 5 | 7 | 9 | 13 | 15 | 17 | 17 | 16 | 14 | 12 | 8 | 6 |
| Precipitation (mm) | 14 | 10 | 12 | 13 | 29 | 40 | 63 | 42 | 63 | 26 | 9 | 9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 20 | 22 | 25 | 28 | 30 | 30 |
| Avg temp (°C) | 12 | 15 | 17 | 20 | 23 | 23 |
| Avg low (°C) | 5 | 7 | 9 | 13 | 15 | 17 |
| Precipitation (mm) | 14 | 10 | 12 | 13 | 29 | 40 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 26 | 25 | 23 | 20 |
| Avg temp (°C) | 23 | 23 | 20 | 19 | 16 | 13 |
| Avg low (°C) | 17 | 16 | 14 | 12 | 8 | 6 |
| Precipitation (mm) | 63 | 42 | 63 | 26 | 9 | 9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 47 | 47 | 49 | 49 | 47 | 49 | 46 | 53 | 41 | 40 | 47 |
| Relative humidity (%) | 55 | 50 | 47 | 44 | 53 | 60 | 62 | 64 | 72 | 68 | 63 | 57 |
| Wind speed (km/h) | 7.7 | 8.6 | 9.4 | 9.8 | 9.8 | 10.0 | 10.0 | 9.5 | 8.5 | 7.6 | 7.3 | 7.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 47 | 47 | 49 | 49 | 47 |
| Relative humidity (%) | 55 | 50 | 47 | 44 | 53 | 60 |
| Wind speed (km/h) | 7.7 | 8.6 | 9.4 | 9.8 | 9.8 | 10.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 46 | 53 | 41 | 40 | 47 |
| Relative humidity (%) | 62 | 64 | 72 | 68 | 63 | 57 |
| Wind speed (km/h) | 10.0 | 9.5 | 8.5 | 7.6 | 7.3 | 7.4 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Saltillo (dge), about 6 km from the city centre.
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.