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Tapachula, Chiapas climate
As Tropical savanna (dry summer)
Tapachula has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is April with an average daily high near 37°C, while the coldest is January averaging around 21°C at night. Precipitation totals about 2058 mm a year and is strongly seasonal — September alone averages 404 mm while February barely receives 3 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)Tapachula climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 35 | 36 | 36 | 37 | 35 | 34 | 34 | 34 | 33 | 33 | 34 | 34 |
| Avg temp (°C) | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 21 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 22 |
| Precipitation (mm) | 7 | 3 | 21 | 68 | 259 | 328 | 258 | 299 | 404 | 314 | 87 | 10 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 35 | 36 | 36 | 37 | 35 | 34 |
| Avg temp (°C) | 28 | 29 | 30 | 30 | 30 | 29 |
| Avg low (°C) | 21 | 22 | 23 | 24 | 24 | 24 |
| Precipitation (mm) | 7 | 3 | 21 | 68 | 259 | 328 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 34 | 33 | 33 | 34 | 34 |
| Avg temp (°C) | 29 | 29 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 22 |
| Precipitation (mm) | 258 | 299 | 404 | 314 | 87 | 10 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 24 | 27 | 33 | 46 | 68 | 78 | 72 | 75 | 81 | 67 | 40 | 26 |
| Relative humidity (%) | 68 | 64 | 63 | 67 | 77 | 84 | 84 | 85 | 86 | 85 | 80 | 75 |
| Wind speed (mph) | 3.7 | 3.9 | 4.2 | 4.0 | 3.8 | 4.2 | 4.1 | 4.2 | 4.3 | 4.0 | 3.6 | 3.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 24 | 27 | 33 | 46 | 68 | 78 |
| Relative humidity (%) | 68 | 64 | 63 | 67 | 77 | 84 |
| Wind speed (mph) | 3.7 | 3.9 | 4.2 | 4.0 | 3.8 | 4.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 75 | 81 | 67 | 40 | 26 |
| Relative humidity (%) | 84 | 85 | 86 | 85 | 80 | 75 |
| Wind speed (mph) | 4.1 | 4.2 | 4.3 | 4.0 | 3.6 | 3.5 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Tapachula (dge), 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.