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San Pedro, Coahuila climate
BWh Hot desert
San Pedro has a mildly seasonal warm-temperate climate (Hot desert, Köppen BWh). The hottest month is August with an average daily high near 31°C, while the coldest is January averaging around 6°C at night. Precipitation totals about 327 mm a year and is strongly seasonal — September alone averages 71 mm while April barely receives 6 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)San Pedro climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 22 | 25 | 28 | 31 | 31 | 31 | 31 | 29 | 27 | 23 | 19 |
| Avg temp (°C) | 13 | 15 | 18 | 21 | 23 | 25 | 24 | 25 | 23 | 20 | 16 | 13 |
| Avg low (°C) | 6 | 8 | 11 | 14 | 16 | 18 | 18 | 18 | 16 | 13 | 10 | 7 |
| Precipitation (mm) | 11 | 7 | 12 | 6 | 22 | 38 | 55 | 61 | 71 | 18 | 12 | 13 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 22 | 25 | 28 | 31 | 31 |
| Avg temp (°C) | 13 | 15 | 18 | 21 | 23 | 25 |
| Avg low (°C) | 6 | 8 | 11 | 14 | 16 | 18 |
| Precipitation (mm) | 11 | 7 | 12 | 6 | 22 | 38 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 29 | 27 | 23 | 19 |
| Avg temp (°C) | 24 | 25 | 23 | 20 | 16 | 13 |
| Avg low (°C) | 18 | 18 | 16 | 13 | 10 | 7 |
| Precipitation (mm) | 55 | 61 | 71 | 18 | 12 | 13 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 44 | 42 | 41 | 41 | 34 | 40 | 50 | 45 | 47 | 30 | 32 | 44 |
| Relative humidity (%) | 46 | 38 | 31 | 27 | 30 | 40 | 46 | 49 | 56 | 52 | 50 | 48 |
| Wind speed (m/s) | 1.8 | 2.0 | 2.2 | 2.3 | 2.3 | 2.6 | 2.6 | 2.5 | 2.3 | 1.9 | 1.8 | 1.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 44 | 42 | 41 | 41 | 34 | 40 |
| Relative humidity (%) | 46 | 38 | 31 | 27 | 30 | 40 |
| Wind speed (m/s) | 1.8 | 2.0 | 2.2 | 2.3 | 2.3 | 2.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 45 | 47 | 30 | 32 | 44 |
| Relative humidity (%) | 46 | 49 | 56 | 52 | 50 | 48 |
| Wind speed (m/s) | 2.6 | 2.5 | 2.3 | 1.9 | 1.8 | 1.8 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Tejaban De La Rosita, about 18 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.