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Mexicali, Baja California climate
BWh Hot desert
Mexicali has a seasonal tropical climate (Hot desert, Köppen BWh). The hottest month is July with an average daily high near 110°F, while the coldest is December averaging around 45°F at night. Precipitation totals about 3 inches a year and is strongly seasonal — January alone averages 0.5 inches while June barely receives 0.01 inches.
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)Mexicali climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 70 | 74 | 81 | 87 | 97 | 106 | 110 | 110 | 103 | 91 | 78 | 69 |
| Avg temp (°F) | 58 | 61 | 67 | 73 | 81 | 90 | 95 | 95 | 89 | 78 | 66 | 57 |
| Avg low (°F) | 46 | 49 | 54 | 58 | 65 | 73 | 81 | 81 | 75 | 64 | 53 | 45 |
| Precipitation (in) | 0.5 | 0.3 | 0.2 | 0.1 | 0.0 | 0.0 | 0.2 | 0.3 | 0.3 | 0.2 | 0.2 | 0.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 70 | 74 | 81 | 87 | 97 | 106 |
| Avg temp (°F) | 58 | 61 | 67 | 73 | 81 | 90 |
| Avg low (°F) | 46 | 49 | 54 | 58 | 65 | 73 |
| Precipitation (in) | 0.5 | 0.3 | 0.2 | 0.1 | 0.0 | 0.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 110 | 110 | 103 | 91 | 78 | 69 |
| Avg temp (°F) | 95 | 95 | 89 | 78 | 66 | 57 |
| Avg low (°F) | 81 | 81 | 75 | 64 | 53 | 45 |
| Precipitation (in) | 0.2 | 0.3 | 0.3 | 0.2 | 0.2 | 0.4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 39 | 32 | 26 | 23 | 17 | 28 | 26 | 23 | 23 | 32 | 39 |
| Relative humidity (%) | 46 | 46 | 41 | 35 | 30 | 22 | 23 | 25 | 27 | 30 | 36 | 44 |
| Wind speed (mph) | 4.2 | 4.6 | 5.3 | 6.5 | 6.7 | 6.5 | 5.8 | 5.5 | 5.4 | 5.2 | 4.5 | 4.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 39 | 39 | 32 | 26 | 23 | 17 |
| Relative humidity (%) | 46 | 46 | 41 | 35 | 30 | 22 |
| Wind speed (mph) | 4.2 | 4.6 | 5.3 | 6.5 | 6.7 | 6.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 28 | 26 | 23 | 23 | 32 | 39 |
| Relative humidity (%) | 23 | 25 | 27 | 30 | 36 | 44 |
| Wind speed (mph) | 5.8 | 5.5 | 5.4 | 5.2 | 4.5 | 4.2 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Mexicali (smn), about 9 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.