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Altamira, Tamaulipas climate
Aw Tropical savanna (dry winter)
Altamira has a mildly seasonal tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is August with an average daily high near 33°C, while the coldest is January averaging around 16°C at night. Precipitation totals about 1057 mm a year and is strongly seasonal — September alone averages 283 mm while April barely receives 22 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)Altamira climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 25 | 27 | 30 | 32 | 33 | 33 | 33 | 32 | 30 | 27 | 25 |
| Avg temp (°C) | 20 | 21 | 24 | 26 | 28 | 29 | 29 | 29 | 28 | 26 | 23 | 21 |
| Avg low (°C) | 16 | 17 | 20 | 22 | 25 | 26 | 26 | 25 | 24 | 22 | 19 | 17 |
| Precipitation (mm) | 39 | 23 | 24 | 22 | 34 | 141 | 126 | 135 | 283 | 158 | 47 | 24 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 23 | 25 | 27 | 30 | 32 | 33 |
| Avg temp (°C) | 20 | 21 | 24 | 26 | 28 | 29 |
| Avg low (°C) | 16 | 17 | 20 | 22 | 25 | 26 |
| Precipitation (mm) | 39 | 23 | 24 | 22 | 34 | 141 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 33 | 32 | 30 | 27 | 25 |
| Avg temp (°C) | 29 | 29 | 28 | 26 | 23 | 21 |
| Avg low (°C) | 26 | 25 | 24 | 22 | 19 | 17 |
| Precipitation (mm) | 126 | 135 | 283 | 158 | 47 | 24 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 63 | 60 | 59 | 51 | 51 | 49 | 51 | 60 | 55 | 59 | 67 |
| Relative humidity (%) | 75 | 74 | 71 | 69 | 71 | 73 | 78 | 78 | 80 | 79 | 78 | 76 |
| Wind speed (km/h) | 10.3 | 10.8 | 11.7 | 12.0 | 11.7 | 10.5 | 9.1 | 8.2 | 8.6 | 9.3 | 9.8 | 9.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 63 | 60 | 59 | 51 | 51 |
| Relative humidity (%) | 75 | 74 | 71 | 69 | 71 | 73 |
| Wind speed (km/h) | 10.3 | 10.8 | 11.7 | 12.0 | 11.7 | 10.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 51 | 60 | 55 | 59 | 67 |
| Relative humidity (%) | 78 | 78 | 80 | 79 | 78 | 76 |
| Wind speed (km/h) | 9.1 | 8.2 | 8.6 | 9.3 | 9.8 | 9.9 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Tampico (obs), 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.