Las Rosas Weather in May

NASA POWER reanalysis for the half-degree grid cell around Las Rosas, 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 27°C on May 31, and lows from 16°C to 16°C. Normal precipitation for the month is 127 mm over about 22 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: 16°C
Precipitation: 127 mm
Reanalysis high: 37°CMay 13, 1998
Reanalysis low: 10°CMay 8, 1992
Daylight: 12 h 44 min to 13 h 02 min
Cloud cover: 66%
Humidity: 71%
Dew point: 15°C
Wind: 7.6 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	35°C 2016	13°C 2011	41%
May 2	30°C	16°C	34°C 1998	11°C 1992	42%
May 3	30°C	16°C	35°C 1998	12°C 1992	44%
May 4	30°C	16°C	35°C 1998	12°C 1992	47%
May 5	30°C	16°C	34°C 1998	12°C 1997	49%
May 6	30°C	16°C	36°C 1998	11°C 2017	52%
May 7	30°C	16°C	36°C 1998	12°C 1992	55%
May 8	30°C	16°C	36°C 1998	10°C 1992	57%
May 9	30°C	16°C	34°C 2013	13°C 2001	57%
May 10	29°C	16°C	36°C 1998	14°C 2001	59%
May 11	29°C	16°C	37°C 1998	14°C 2010	60%
May 12	29°C	16°C	37°C 1998	13°C 1993	61%
May 13	29°C	16°C	37°C 1998	14°C 2007	61%
May 14	29°C	16°C	37°C 1998	14°C 2007	63%
May 15	29°C	16°C	36°C 1998	14°C 2018	65%
May 16	29°C	16°C	34°C 2003	13°C 2013	67%
May 17	29°C	16°C	35°C 2013	13°C 1993	69%
May 18	29°C	16°C	35°C 2013	13°C 1998	69%
May 19	28°C	16°C	32°C 2013	13°C 1998	70%
May 20	28°C	16°C	32°C 1991	13°C 2009	71%
May 21	28°C	16°C	33°C 2017	14°C 1992	72%
May 22	28°C	16°C	33°C 1998	14°C 2004	72%
May 23	28°C	16°C	33°C 1998	14°C 2001	74%
May 24	28°C	16°C	33°C 2007	14°C 2003	75%
May 25	28°C	16°C	32°C 2011	14°C 2015	76%
May 26	27°C	16°C	32°C 2016	14°C 2006	77%
May 27	27°C	16°C	33°C 2009	14°C 2015	79%
May 28	27°C	16°C	33°C 2009	14°C 2015	80%
May 29	27°C	16°C	33°C 1996	14°C 2013	82%
May 30	27°C	16°C	31°C 1999	14°C 2013	84%
May 31	27°C	16°C	31°C 2011	15°C 1994	85%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CST).

May 1: sunrise 5:45 AM, sunset 6:29 PM
May 31: sunrise 5:36 AM, sunset 6:38 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.