Yajalón Weather in May

NASA POWER reanalysis for the half-degree grid cell around Yajalón, 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 16°C to 17°C. Normal precipitation for the month is 140 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: 29°C
Average low: 17°C
Precipitation: 140 mm
Reanalysis high: 37°CMay 12, 1998
Reanalysis low: 12°CMay 2, 1992
Daylight: 12 h 45 min to 13 h 05 min
Cloud cover: 57%
Humidity: 76%
Dew point: 16°C
Wind: 5.4 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	16°C	34°C 2016	12°C 2011	40%
May 2	30°C	16°C	33°C 2003	12°C 1992	41%
May 3	30°C	16°C	34°C 1991	13°C 1992	43%
May 4	30°C	16°C	35°C 1998	14°C 1992	45%
May 5	29°C	16°C	36°C 1998	13°C 2014	48%
May 6	29°C	16°C	36°C 1998	12°C 2017	50%
May 7	29°C	16°C	36°C 1998	12°C 2016	53%
May 8	29°C	16°C	35°C 1998	12°C 1992	54%
May 9	29°C	16°C	36°C 1998	13°C 1992	54%
May 10	29°C	16°C	35°C 1998	13°C 2002	56%
May 11	29°C	16°C	35°C 1998	13°C 2010	57%
May 12	29°C	16°C	37°C 1998	14°C 2010	58%
May 13	29°C	16°C	37°C 1998	14°C 2007	59%
May 14	29°C	16°C	37°C 1998	14°C 2007	60%
May 15	29°C	16°C	35°C 1998	14°C 2007	61%
May 16	29°C	17°C	34°C 2003	14°C 1998	63%
May 17	29°C	17°C	32°C 2017	13°C 2014	64%
May 18	29°C	17°C	32°C 2013	12°C 2007	65%
May 19	28°C	17°C	34°C 2019	13°C 1998	66%
May 20	28°C	17°C	35°C 2013	13°C 2009	66%
May 21	28°C	17°C	33°C 2019	15°C 1993	66%
May 22	28°C	17°C	33°C 2019	14°C 1994	67%
May 23	28°C	17°C	33°C 2019	14°C 1994	69%
May 24	28°C	17°C	32°C 2020	14°C 2003	71%
May 25	28°C	17°C	34°C 2020	15°C 2015	72%
May 26	28°C	17°C	33°C 2020	14°C 2015	74%
May 27	28°C	17°C	33°C 2009	14°C 2015	76%
May 28	28°C	17°C	33°C 1996	14°C 2018	77%
May 29	28°C	17°C	32°C 1996	15°C 2013	78%
May 30	28°C	17°C	34°C 2002	14°C 2013	80%
May 31	28°C	17°C	33°C 2010	15°C 2011	82%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CST).

May 1: sunrise 5:44 AM, sunset 6:29 PM
May 31: sunrise 5:35 AM, sunset 6:40 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.