Tuxtla Weather in May

NASA POWER reanalysis for the half-degree grid cell around Tuxtla, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 30°C on May 1 to 28°C on May 31, and lows from 18°C to 19°C. Normal precipitation for the month is 127 mm over about 19 wet days.

May day by day

The normal high and low for each date, in °C.

Normal low
Normal high
Reanalysis extreme high
Reanalysis extreme low

May at a glance

Average high: 30°C
Average low: 18°C
Precipitation: 127 mm
Reanalysis high: 40°CMay 13, 1998
Reanalysis low: 14°CMay 7, 2016
Daylight: 12 h 45 min to 13 h 03 min
Cloud cover: 57%
Humidity: 74%
Dew point: 18°C
Wind: 9.0 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

Date	Normal high	Normal low	Reanalysis high	Reanalysis low	Chance wet
May 1	30°C	18°C	35°C 2016	16°C 1995	40%
May 2	30°C	18°C	35°C 2003	14°C 1992	40%
May 3	30°C	18°C	36°C 1998	15°C 1992	41%
May 4	30°C	18°C	37°C 1998	14°C 1992	43%
May 5	30°C	18°C	36°C 1998	15°C 2014	45%
May 6	30°C	18°C	38°C 1998	14°C 2017	48%
May 7	30°C	18°C	39°C 1998	14°C 2016	52%
May 8	30°C	18°C	37°C 1998	14°C 1992	53%
May 9	30°C	18°C	35°C 1998	15°C 1992	53%
May 10	30°C	18°C	38°C 1998	16°C 2001	54%
May 11	30°C	18°C	37°C 1998	16°C 2010	55%
May 12	30°C	18°C	39°C 1998	16°C 1993	56%
May 13	30°C	18°C	40°C 1998	16°C 2007	58%
May 14	30°C	18°C	39°C 1998	15°C 2007	59%
May 15	30°C	18°C	37°C 1998	16°C 2014	60%
May 16	30°C	18°C	34°C 2003	15°C 2014	62%
May 17	30°C	18°C	34°C 2013	14°C 2014	64%
May 18	30°C	18°C	34°C 2013	14°C 2007	65%
May 19	29°C	18°C	33°C 2019	15°C 2006	66%
May 20	29°C	18°C	34°C 2013	15°C 2009	67%
May 21	29°C	18°C	34°C 2011	16°C 2005	67%
May 22	29°C	18°C	35°C 1998	16°C 1994	67%
May 23	29°C	18°C	36°C 1998	16°C 2018	69%
May 24	29°C	18°C	36°C 1998	16°C 2003	71%
May 25	29°C	19°C	34°C 1998	17°C 2003	72%
May 26	29°C	19°C	33°C 2011	17°C 2007	74%
May 27	29°C	19°C	35°C 2009	16°C 2018	76%
May 28	29°C	19°C	34°C 1998	17°C 2002	77%
May 29	28°C	19°C	34°C 1998	16°C 2010	78%
May 30	28°C	19°C	33°C 1999	16°C 2015	80%
May 31	28°C	19°C	34°C 2010	16°C 1998	82%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CST).

May 1: sunrise 5:47 AM, sunset 6:32 PM
May 31: sunrise 5:39 AM, sunset 6:42 PM

Every day of May: sun and moon

Other months

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.