Arcos Weather in January

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

Average highs run from 27°C on January 1 to 27°C on January 31, and lows from 19°C to 19°C. Normal precipitation for the month is 260 mm over about 25 wet days.

January day by day

The normal high and low for each date, in °C.

Normal low
Normal high
Reanalysis extreme high
Reanalysis extreme low

January at a glance

Average high: 27°C
Average low: 19°C
Precipitation: 260 mm
Reanalysis high: 36°CJan 19, 2015
Reanalysis low: 15°CJan 1, 1991
Daylight: 13 h 20 min to 13 h 01 min
Cloud cover: 76%
Humidity: 81%
Dew point: 19°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
Jan 1	27°C	19°C	33°C 2017	15°C 1991	81%
Jan 2	27°C	19°C	32°C 2017	16°C 1991	80%
Jan 3	27°C	19°C	32°C 2008	17°C 2004	79%
Jan 4	27°C	19°C	33°C 2014	17°C 2004	78%
Jan 5	27°C	19°C	31°C 2014	17°C 2016	77%
Jan 6	27°C	19°C	31°C 2013	17°C 2009	76%
Jan 7	27°C	19°C	31°C 2020	16°C 2004	75%
Jan 8	27°C	19°C	31°C 2017	15°C 2000	74%
Jan 9	27°C	19°C	31°C 2014	17°C 2015	74%
Jan 10	27°C	19°C	32°C 2015	16°C 2019	73%
Jan 11	27°C	19°C	33°C 2015	16°C 1994	72%
Jan 12	27°C	19°C	34°C 2015	16°C 2012	71%
Jan 13	27°C	19°C	34°C 2015	16°C 1992	71%
Jan 14	27°C	19°C	34°C 2015	16°C 2006	71%
Jan 15	27°C	19°C	34°C 2015	16°C 1993	71%
Jan 16	27°C	19°C	34°C 2015	17°C 2008	71%
Jan 17	27°C	19°C	34°C 2015	17°C 2008	72%
Jan 18	27°C	19°C	35°C 2015	15°C 2004	73%
Jan 19	27°C	19°C	36°C 2015	16°C 2004	75%
Jan 20	27°C	19°C	36°C 2015	15°C 2004	76%
Jan 21	27°C	19°C	35°C 2015	16°C 2004	76%
Jan 22	27°C	19°C	31°C 2014	16°C 2013	78%
Jan 23	27°C	19°C	31°C 2006	17°C 2013	78%
Jan 24	27°C	19°C	31°C 2006	17°C 2009	77%
Jan 25	27°C	19°C	33°C 2006	17°C 2015	77%
Jan 26	27°C	19°C	31°C 2006	17°C 1993	77%
Jan 27	27°C	19°C	31°C 2014	17°C 1993	78%
Jan 28	27°C	19°C	32°C 2014	16°C 2000	77%
Jan 29	27°C	19°C	32°C 2014	16°C 2014	77%
Jan 30	27°C	19°C	33°C 2014	16°C 2012	77%
Jan 31	27°C	19°C	33°C 2014	16°C 2012	77%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

January 1: sunrise 5:26 AM, sunset 6:46 PM
January 31: sunrise 5:45 AM, sunset 6:46 PM

Every day of January: 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.