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Salina Cruz, Oaxaca climate
BSh Hot semi-arid
Salina Cruz has a mildly seasonal tropical climate (Hot semi-arid, Köppen BSh). The hottest month is May with an average daily high near 37°C, while the coldest is January averaging around 16°C at night. Precipitation totals about 748 mm a year and is strongly seasonal — June alone averages 178 mm while January barely receives 0 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)Salina Cruz climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 34 | 35 | 36 | 37 | 35 | 35 | 35 | 34 | 34 | 33 | 33 |
| Avg temp (°C) | 24 | 25 | 27 | 29 | 30 | 29 | 29 | 29 | 28 | 27 | 25 | 25 |
| Avg low (°C) | 16 | 16 | 19 | 21 | 23 | 23 | 22 | 22 | 22 | 20 | 18 | 16 |
| Precipitation (mm) | 0 | 0 | 1 | 5 | 35 | 178 | 139 | 155 | 156 | 65 | 13 | 2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 34 | 35 | 36 | 37 | 35 |
| Avg temp (°C) | 24 | 25 | 27 | 29 | 30 | 29 |
| Avg low (°C) | 16 | 16 | 19 | 21 | 23 | 23 |
| Precipitation (mm) | 0 | 0 | 1 | 5 | 35 | 178 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 35 | 35 | 34 | 34 | 33 | 33 |
| Avg temp (°C) | 29 | 29 | 28 | 27 | 25 | 25 |
| Avg low (°C) | 22 | 22 | 22 | 20 | 18 | 16 |
| Precipitation (mm) | 139 | 155 | 156 | 65 | 13 | 2 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 34 | 32 | 33 | 38 | 57 | 74 | 70 | 72 | 77 | 60 | 40 | 35 |
| Relative humidity (%) | 78 | 73 | 69 | 65 | 67 | 79 | 83 | 85 | 87 | 85 | 83 | 81 |
| Wind speed (m/s) | 5.3 | 4.9 | 4.7 | 4.3 | 3.7 | 2.9 | 3.3 | 3.1 | 3.0 | 4.3 | 5.3 | 5.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 34 | 32 | 33 | 38 | 57 | 74 |
| Relative humidity (%) | 78 | 73 | 69 | 65 | 67 | 79 |
| Wind speed (m/s) | 5.3 | 4.9 | 4.7 | 4.3 | 3.7 | 2.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 72 | 77 | 60 | 40 | 35 |
| Relative humidity (%) | 83 | 85 | 87 | 85 | 83 | 81 |
| Wind speed (m/s) | 3.3 | 3.1 | 3.0 | 4.3 | 5.3 | 5.2 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Rio Hondo, about 35 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.