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Ciudad Valles, San Luis Potosí climate
Aw Tropical savanna (dry winter)
Ciudad Valles has a mildly seasonal tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is June with an average daily high near 36°C, while the coldest is January averaging around 12°C at night. Precipitation totals about 1208 mm a year and is strongly seasonal — September alone averages 244 mm while February barely receives 17 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)Ciudad Valles climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 28 | 31 | 34 | 36 | 36 | 34 | 35 | 33 | 31 | 28 | 26 |
| Avg temp (°C) | 19 | 21 | 24 | 27 | 29 | 29 | 28 | 29 | 27 | 25 | 22 | 20 |
| Avg low (°C) | 12 | 14 | 17 | 20 | 22 | 23 | 23 | 23 | 22 | 19 | 16 | 13 |
| Precipitation (mm) | 24 | 17 | 32 | 40 | 96 | 185 | 235 | 159 | 244 | 114 | 41 | 21 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 28 | 31 | 34 | 36 | 36 |
| Avg temp (°C) | 19 | 21 | 24 | 27 | 29 | 29 |
| Avg low (°C) | 12 | 14 | 17 | 20 | 22 | 23 |
| Precipitation (mm) | 24 | 17 | 32 | 40 | 96 | 185 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 35 | 33 | 31 | 28 | 26 |
| Avg temp (°C) | 28 | 29 | 27 | 25 | 22 | 20 |
| Avg low (°C) | 23 | 23 | 22 | 19 | 16 | 13 |
| Precipitation (mm) | 235 | 159 | 244 | 114 | 41 | 21 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 54 | 49 | 49 | 51 | 53 | 58 | 61 | 57 | 65 | 55 | 52 | 53 |
| Relative humidity (%) | 71 | 68 | 63 | 59 | 62 | 69 | 77 | 77 | 81 | 80 | 78 | 73 |
| Wind speed (m/s) | 1.6 | 1.9 | 2.2 | 2.4 | 2.4 | 2.0 | 1.7 | 1.6 | 1.5 | 1.5 | 1.5 | 1.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 54 | 49 | 49 | 51 | 53 | 58 |
| Relative humidity (%) | 71 | 68 | 63 | 59 | 62 | 69 |
| Wind speed (m/s) | 1.6 | 1.9 | 2.2 | 2.4 | 2.4 | 2.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 57 | 65 | 55 | 52 | 53 |
| Relative humidity (%) | 77 | 77 | 81 | 80 | 78 | 73 |
| Wind speed (m/s) | 1.7 | 1.6 | 1.5 | 1.5 | 1.5 | 1.5 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Ciudad Valles, about 3 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.