Tuxtla, Chiapas climate

Aw Tropical savanna (dry winter)

Tuxtla has a mildly seasonal tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is May with an average daily high near 96°F, while the coldest is January averaging around 62°F at night. Precipitation totals about 39 inches a year and is strongly seasonal — August alone averages 8.5 inches while January barely receives 0.04 inches.

☀️ All year

Very hot

Daytime highs near 96°F most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 62°F.

🌧️ Rain

Moderate rainfall

About 39 in of rain a year.

Wettest in August

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Tuxtla climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	85	89	93	97	96	91	90	90	89	87	85	85
Avg temp (°F)	74	76	80	83	84	81	80	80	80	78	75	74
Avg low (°F)	62	64	66	70	72	71	71	71	70	69	66	64
Precipitation (in)	0.0	0.1	0.1	0.4	3.5	8.3	6.5	8.5	8.2	3.0	0.7	0.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	85	89	93	97	96	91
Avg temp (°F)	74	76	80	83	84	81
Avg low (°F)	62	64	66	70	72	71
Precipitation (in)	0.0	0.1	0.1	0.4	3.5	8.3

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	90	90	89	87	85	85
Avg temp (°F)	80	80	80	78	75	74
Avg low (°F)	71	71	70	69	66	64
Precipitation (in)	6.5	8.5	8.2	3.0	0.7	0.1

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	45	40	36	40	60	77	72	73	80	67	50	44
Relative humidity (%)	85	81	76	71	74	83	84	86	89	90	89	87
Wind speed (mph)	4.2	4.0	4.1	3.9	3.3	2.6	2.6	2.6	2.7	3.5	4.2	3.9

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	45	40	36	40	60	77
Relative humidity (%)	85	81	76	71	74	83
Wind speed (mph)	4.2	4.0	4.1	3.9	3.3	2.6

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	72	73	80	67	50	44
Relative humidity (%)	84	86	89	90	89	87
Wind speed (mph)	2.6	2.6	2.7	3.5	4.2	3.9

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Tuxtla Gutierrez (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.

How we build these numbers →