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Cortazar, Guanajuato climate
BSh Hot semi-arid
Cortazar has a mildly seasonal warm-temperate climate (Hot semi-arid, Köppen BSh). The hottest month is May with an average daily high near 32°C, while the coldest is January averaging around 7°C at night. Precipitation totals about 627 mm a year and is strongly seasonal — July alone averages 141 mm while December barely receives 4 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)Cortazar climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 26 | 29 | 31 | 32 | 30 | 28 | 28 | 27 | 27 | 26 | 25 |
| Avg temp (°C) | 16 | 18 | 20 | 22 | 23 | 23 | 22 | 22 | 21 | 20 | 18 | 17 |
| Avg low (°C) | 7 | 9 | 11 | 13 | 15 | 15 | 15 | 15 | 15 | 13 | 10 | 8 |
| Precipitation (mm) | 13 | 13 | 10 | 6 | 38 | 109 | 141 | 125 | 126 | 35 | 9 | 4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 24 | 26 | 29 | 31 | 32 | 30 |
| Avg temp (°C) | 16 | 18 | 20 | 22 | 23 | 23 |
| Avg low (°C) | 7 | 9 | 11 | 13 | 15 | 15 |
| Precipitation (mm) | 13 | 13 | 10 | 6 | 38 | 109 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 27 | 27 | 26 | 25 |
| Avg temp (°C) | 22 | 22 | 21 | 20 | 18 | 17 |
| Avg low (°C) | 15 | 15 | 15 | 13 | 10 | 8 |
| Precipitation (mm) | 141 | 125 | 126 | 35 | 9 | 4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 30 | 29 | 36 | 44 | 60 | 65 | 61 | 63 | 47 | 33 | 33 |
| Relative humidity (%) | 54 | 49 | 40 | 35 | 41 | 58 | 71 | 74 | 76 | 70 | 64 | 59 |
| Wind speed (mph) | 4.1 | 4.2 | 4.4 | 4.7 | 4.5 | 4.6 | 4.0 | 4.0 | 4.3 | 4.3 | 4.2 | 3.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 35 | 30 | 29 | 36 | 44 | 60 |
| Relative humidity (%) | 54 | 49 | 40 | 35 | 41 | 58 |
| Wind speed (mph) | 4.1 | 4.2 | 4.4 | 4.7 | 4.5 | 4.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 65 | 61 | 63 | 47 | 33 | 33 |
| Relative humidity (%) | 71 | 74 | 76 | 70 | 64 | 59 |
| Wind speed (mph) | 4.0 | 4.0 | 4.3 | 4.3 | 4.2 | 3.9 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Cortazar, inside the city.
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.