São João da Lagoa Weather in May

NASA POWER reanalysis for the half-degree grid cell around São João da Lagoa, 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 29°C on May 31, and lows from 18°C to 16°C. Normal precipitation for the month is 13 mm over about 3 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: 17°C
Precipitation: 13 mm
Reanalysis high: 35°CMay 12, 2001
Reanalysis low: 10°CMay 9, 2003
Daylight: 11 h 29 min to 11 h 12 min
Cloud cover: 37%
Humidity: 65%
Dew point: 15°C
Wind: 12.6 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	18°C	34°C 1998	13°C 2004	11%
May 2	30°C	18°C	34°C 1998	14°C 2014	10%
May 3	30°C	17°C	35°C 1998	14°C 1991	10%
May 4	30°C	17°C	34°C 2001	13°C 2005	9%
May 5	30°C	17°C	34°C 2001	14°C 2005	9%
May 6	30°C	17°C	33°C 2002	14°C 1997	9%
May 7	30°C	17°C	34°C 2019	15°C 1996	8%
May 8	30°C	17°C	34°C 2019	12°C 2008	8%
May 9	30°C	17°C	34°C 2001	10°C 2003	10%
May 10	30°C	17°C	34°C 2001	13°C 1997	10%
May 11	30°C	17°C	34°C 2001	13°C 2020	10%
May 12	30°C	17°C	35°C 2001	14°C 1997	10%
May 13	30°C	17°C	34°C 2019	13°C 2014	11%
May 14	30°C	17°C	34°C 2019	14°C 2006	11%
May 15	29°C	17°C	34°C 2019	13°C 1999	11%
May 16	29°C	17°C	34°C 1996	12°C 2000	10%
May 17	29°C	17°C	33°C 2016	13°C 2006	10%
May 18	29°C	17°C	33°C 2002	12°C 2006	11%
May 19	29°C	17°C	32°C 2002	11°C 2006	11%
May 20	29°C	17°C	33°C 2019	11°C 2006	10%
May 21	29°C	17°C	34°C 2002	12°C 1999	10%
May 22	29°C	16°C	32°C 2005	11°C 1999	10%
May 23	29°C	16°C	33°C 2014	12°C 1999	9%
May 24	29°C	16°C	34°C 2014	12°C 1993	8%
May 25	29°C	16°C	33°C 2014	12°C 1993	6%
May 26	29°C	16°C	33°C 2019	12°C 1993	6%
May 27	29°C	16°C	32°C 2019	11°C 2002	6%
May 28	29°C	16°C	33°C 1998	11°C 2020	5%
May 29	29°C	16°C	34°C 2019	11°C 2020	5%
May 30	29°C	16°C	33°C 2019	12°C 2020	5%
May 31	29°C	16°C	33°C 2015	13°C 1997	5%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

May 1: sunrise 6:10 AM, sunset 5:39 PM
May 31: sunrise 6:19 AM, sunset 5:31 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 2026-09-29. Sun and moon: computed with the NOAA solar equations and Meeus.