Isla Weather in May

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

Average highs run from 37°C on May 1 to 36°C on May 31, and lows from 24°C to 25°C. Normal precipitation for the month is 78 mm over about 12 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: 37°C
Average low: 24°C
Precipitation: 78 mm
Reanalysis high: 46°CMay 9, 1998
Reanalysis low: 18°CMay 17, 2014
Daylight: 12 h 48 min to 13 h 08 min
Cloud cover: 53%
Humidity: 62%
Dew point: 20°C
Wind: 11.5 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	37°C	24°C	43°C 2003	20°C 1992	22%
May 2	37°C	24°C	43°C 2002	20°C 1992	22%
May 3	37°C	24°C	43°C 1991	19°C 2004	23%
May 4	37°C	24°C	44°C 1998	18°C 2013	24%
May 5	37°C	24°C	44°C 2003	20°C 2013	25%
May 6	37°C	24°C	45°C 2003	19°C 2017	26%
May 7	37°C	24°C	44°C 1998	20°C 2017	29%
May 8	37°C	24°C	44°C 1998	19°C 2016	32%
May 9	37°C	24°C	46°C 1998	19°C 1992	34%
May 10	37°C	24°C	44°C 2008	20°C 2001	35%
May 11	37°C	24°C	43°C 2008	20°C 2001	37%
May 12	37°C	24°C	45°C 1998	21°C 1993	36%
May 13	37°C	24°C	44°C 1998	21°C 2001	37%
May 14	37°C	24°C	44°C 1998	21°C 2001	37%
May 15	37°C	24°C	43°C 2008	20°C 2014	38%
May 16	37°C	24°C	43°C 2020	19°C 2014	40%
May 17	37°C	24°C	42°C 1995	18°C 2014	40%
May 18	37°C	24°C	43°C 1995	20°C 2014	41%
May 19	37°C	24°C	43°C 2011	20°C 2014	43%
May 20	37°C	24°C	44°C 2011	21°C 2009	43%
May 21	37°C	24°C	44°C 2019	21°C 1992	44%
May 22	37°C	24°C	43°C 2019	21°C 2002	44%
May 23	37°C	24°C	42°C 2016	19°C 2002	44%
May 24	36°C	24°C	43°C 2016	20°C 1994	45%
May 25	36°C	24°C	43°C 2011	21°C 1994	47%
May 26	36°C	24°C	43°C 2020	22°C 1992	47%
May 27	36°C	25°C	41°C 1996	22°C 1993	51%
May 28	36°C	25°C	42°C 1996	21°C 2002	52%
May 29	36°C	25°C	43°C 2011	22°C 1993	54%
May 30	36°C	25°C	41°C 2018	22°C 1993	56%
May 31	36°C	25°C	41°C 1991	22°C 2015	57%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CST).

May 1: sunrise 5:55 AM, sunset 6:43 PM
May 31: sunrise 5:46 AM, sunset 6:54 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.