Caicó Weather in May

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

Average highs run from 33°C on May 1 to 33°C on May 31, and lows from 21°C to 21°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: 33°C
Average low: 21°C
Precipitation: 78 mm
Reanalysis high: 39°CMay 1, 1998
Reanalysis low: 17°CMay 29, 1999
Daylight: 11 h 53 min to 11 h 46 min
Cloud cover: 57%
Humidity: 73%
Dew point: 20°C
Wind: 16.2 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	33°C	21°C	39°C 1998	18°C 1996	54%
May 2	33°C	21°C	39°C 1998	20°C 2017	52%
May 3	33°C	21°C	38°C 1998	19°C 2019	51%
May 4	33°C	21°C	38°C 1998	19°C 2016	50%
May 5	33°C	21°C	38°C 1998	18°C 2002	49%
May 6	33°C	21°C	38°C 1998	19°C 2019	48%
May 7	33°C	21°C	38°C 1998	19°C 2018	47%
May 8	33°C	21°C	38°C 1998	19°C 2003	45%
May 9	33°C	21°C	37°C 2015	19°C 2007	44%
May 10	33°C	21°C	38°C 2012	19°C 2007	44%
May 11	33°C	21°C	37°C 2012	18°C 2003	43%
May 12	33°C	21°C	37°C 2012	19°C 1992	43%
May 13	33°C	21°C	38°C 2012	18°C 2002	42%
May 14	33°C	21°C	38°C 2012	19°C 2007	42%
May 15	33°C	21°C	38°C 1993	19°C 2001	41%
May 16	33°C	21°C	37°C 1993	19°C 1992	41%
May 17	33°C	21°C	37°C 2001	19°C 1999	42%
May 18	33°C	21°C	37°C 2012	19°C 2007	41%
May 19	33°C	21°C	37°C 1993	18°C 1996	41%
May 20	33°C	21°C	36°C 1998	18°C 1997	41%
May 21	33°C	21°C	38°C 1998	18°C 1996	41%
May 22	33°C	21°C	37°C 1998	18°C 2000	41%
May 23	33°C	21°C	36°C 2015	18°C 1996	41%
May 24	33°C	21°C	37°C 2015	18°C 2018	41%
May 25	33°C	21°C	37°C 2015	18°C 2000	41%
May 26	33°C	21°C	36°C 2015	17°C 2014	40%
May 27	33°C	21°C	37°C 1998	19°C 2014	40%
May 28	33°C	21°C	37°C 2001	17°C 1999	40%
May 29	33°C	21°C	37°C 2015	17°C 1999	40%
May 30	33°C	21°C	37°C 1998	18°C 1999	40%
May 31	33°C	21°C	38°C 1998	19°C 2014	39%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT-3).

May 1: sunrise 5:29 AM, sunset 5:22 PM
May 31: sunrise 5:33 AM, sunset 5:19 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.