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Mazatlán, Sinaloa climate
BSh Hot semi-arid
Mazatlán has a mildly seasonal tropical climate (Hot semi-arid, Köppen BSh). The hottest month is June with an average daily high near 98°F, while the coldest is January averaging around 53°F at night. Precipitation totals about 28 inches a year and is strongly seasonal — August alone averages 8.4 inches while May barely receives 0.00 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)Mazatlán climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 90 | 92 | 95 | 97 | 98 | 96 | 96 | 95 | 96 | 93 | 88 |
| Avg temp (°F) | 71 | 72 | 73 | 76 | 80 | 86 | 86 | 85 | 84 | 83 | 78 | 72 |
| Avg low (°F) | 53 | 54 | 54 | 57 | 64 | 74 | 75 | 74 | 74 | 71 | 63 | 56 |
| Precipitation (in) | 0.6 | 0.4 | 0.1 | 0.1 | 0.0 | 1.3 | 6.0 | 8.4 | 6.9 | 1.9 | 1.4 | 0.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 90 | 92 | 95 | 97 | 98 |
| Avg temp (°F) | 71 | 72 | 73 | 76 | 80 | 86 |
| Avg low (°F) | 53 | 54 | 54 | 57 | 64 | 74 |
| Precipitation (in) | 0.6 | 0.4 | 0.1 | 0.1 | 0.0 | 1.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 96 | 96 | 95 | 96 | 93 | 88 |
| Avg temp (°F) | 86 | 85 | 84 | 83 | 78 | 72 |
| Avg low (°F) | 75 | 74 | 74 | 71 | 63 | 56 |
| Precipitation (in) | 6.0 | 8.4 | 6.9 | 1.9 | 1.4 | 0.5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 42 | 37 | 33 | 33 | 23 | 41 | 68 | 68 | 63 | 34 | 31 | 43 |
| Relative humidity (%) | 50 | 49 | 45 | 44 | 48 | 62 | 77 | 83 | 85 | 74 | 62 | 56 |
| Wind speed (mph) | 3.0 | 3.1 | 3.2 | 3.4 | 3.8 | 4.0 | 3.1 | 2.8 | 2.8 | 2.7 | 2.8 | 2.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 42 | 37 | 33 | 33 | 23 | 41 |
| Relative humidity (%) | 50 | 49 | 45 | 44 | 48 | 62 |
| Wind speed (mph) | 3.0 | 3.1 | 3.2 | 3.4 | 3.8 | 4.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 68 | 63 | 34 | 31 | 43 |
| Relative humidity (%) | 77 | 83 | 85 | 74 | 62 | 56 |
| Wind speed (mph) | 3.1 | 2.8 | 2.8 | 2.7 | 2.8 | 2.8 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Siqueros, about 23 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.