Onitsha climate

Onitsha Weather in January

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

Average highs run from 29°C on January 1 to 31°C on January 31, and lows from 19°C to 21°C. Normal precipitation for the month is 12 mm over about 3 wet days.

January day by day

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

Normal daily high and low temperature at Onitsha, in °C, with the record for each date.101520253035151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

January at a glance

Average high
30°C
Average low
20°C
Precipitation
12 mm
Reanalysis high
33°CJan 11, 2016
Reanalysis low
12°CJan 5, 2018
Daylight
11 h 47 min to 11 h 52 min
Cloud cover
40%
Humidity
72%
Dew point
19°C
Wind
9.0 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Jan 129°C19°C31°C 200514°C 20034%
Jan 229°C19°C31°C 200014°C 20075%
Jan 329°C19°C31°C 199714°C 20074%
Jan 429°C19°C32°C 200413°C 19925%
Jan 529°C19°C32°C 200412°C 20185%
Jan 629°C19°C32°C 200613°C 19925%
Jan 729°C19°C32°C 201613°C 19925%
Jan 829°C19°C33°C 201614°C 20055%
Jan 929°C19°C33°C 201614°C 20056%
Jan 1029°C19°C33°C 201613°C 19926%
Jan 1129°C19°C33°C 201613°C 20158%
Jan 1230°C19°C32°C 201613°C 20158%
Jan 1330°C19°C33°C 202012°C 20078%
Jan 1430°C19°C32°C 202013°C 20079%
Jan 1530°C19°C33°C 202013°C 20079%
Jan 1630°C20°C33°C 200013°C 201110%
Jan 1730°C20°C32°C 200014°C 200710%
Jan 1830°C20°C32°C 201615°C 200711%
Jan 1930°C20°C32°C 200615°C 199811%
Jan 2030°C20°C32°C 200615°C 199812%
Jan 2130°C20°C32°C 201514°C 199312%
Jan 2230°C20°C32°C 201514°C 199313%
Jan 2330°C20°C32°C 201514°C 199313%
Jan 2430°C20°C32°C 199214°C 199312%
Jan 2530°C21°C32°C 199213°C 199312%
Jan 2630°C21°C33°C 201913°C 202012%
Jan 2730°C21°C33°C 200015°C 200811%
Jan 2830°C21°C33°C 200014°C 200810%
Jan 2930°C21°C32°C 199614°C 200210%
Jan 3030°C21°C32°C 199115°C 200810%
Jan 3131°C21°C32°C 199215°C 20089%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Onitsha, in percent.0510151102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+1).

January 1
sunrise 6:43 AM, sunset 6:30 PM
January 31
sunrise 6:50 AM, sunset 6:42 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.