Geiro Weather in May

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

Average highs run from 24°C on May 1 to 23°C on May 31, and lows from 16°C to 14°C. Normal precipitation for the month is 84 mm over about 16 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: 24°C
Average low: 15°C
Precipitation: 84 mm
Reanalysis high: 29°CMay 11, 2003
Reanalysis low: 9°CMay 17, 1998
Daylight: 11 h 53 min to 11 h 47 min
Cloud cover: 66%
Humidity: 85%
Dew point: 16°C
Wind: 14.0 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	24°C	16°C	27°C 2003	13°C 2005	75%
May 2	24°C	16°C	27°C 2003	14°C 2012	74%
May 3	24°C	16°C	26°C 2003	13°C 2002	73%
May 4	24°C	16°C	27°C 1992	12°C 2008	72%
May 5	24°C	16°C	28°C 2003	14°C 1997	71%
May 6	24°C	15°C	26°C 2003	13°C 1997	70%
May 7	24°C	15°C	26°C 2001	11°C 1997	68%
May 8	24°C	15°C	27°C 2003	12°C 1997	67%
May 9	24°C	15°C	28°C 2003	12°C 2016	64%
May 10	24°C	15°C	28°C 2003	13°C 1997	61%
May 11	24°C	15°C	29°C 2003	13°C 2002	58%
May 12	24°C	15°C	28°C 2003	12°C 2002	55%
May 13	24°C	15°C	28°C 2003	13°C 2002	53%
May 14	24°C	15°C	27°C 2003	13°C 2016	51%
May 15	24°C	15°C	26°C 2003	11°C 2016	51%
May 16	24°C	15°C	26°C 2003	10°C 2016	50%
May 17	24°C	15°C	26°C 2003	9°C 1998	49%
May 18	24°C	15°C	26°C 2003	10°C 1998	48%
May 19	24°C	15°C	27°C 2005	10°C 1997	46%
May 20	23°C	15°C	26°C 2003	10°C 1997	45%
May 21	23°C	14°C	25°C 2006	12°C 1998	44%
May 22	23°C	14°C	26°C 2001	11°C 2004	43%
May 23	23°C	14°C	26°C 2001	12°C 1998	41%
May 24	23°C	14°C	26°C 2000	10°C 1995	41%
May 25	23°C	14°C	26°C 2000	12°C 1998	41%
May 26	23°C	14°C	27°C 2003	10°C 2004	40%
May 27	23°C	14°C	28°C 2003	11°C 2009	39%
May 28	23°C	14°C	26°C 1994	10°C 1998	38%
May 29	23°C	14°C	26°C 1994	10°C 1998	37%
May 30	23°C	14°C	25°C 2002	11°C 2001	34%
May 31	23°C	14°C	26°C 2009	11°C 2006	32%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

May 1: sunrise 6:33 AM, sunset 6:26 PM
May 31: sunrise 6:37 AM, sunset 6:24 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.