Sunyani Weather in December

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

Average highs run from 32°C on December 1 to 34°C on December 31, and lows from 21°C to 19°C. Normal precipitation for the month is 12 mm over about 3 wet days.

December day by day

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

Normal low
Normal high
Reanalysis extreme high
Reanalysis extreme low

December at a glance

Average high: 33°C
Average low: 20°C
Precipitation: 12 mm
Reanalysis high: 38°CDec 28, 2001
Reanalysis low: 13°CDec 17, 2015
Daylight: 11 h 44 min to 11 h 42 min
Cloud cover: 36%
Humidity: 59%
Dew point: 16°C
Wind: 9.4 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
Dec 1	32°C	21°C	35°C 2008	17°C 1992	26%
Dec 2	32°C	21°C	36°C 2002	17°C 1992	24%
Dec 3	32°C	21°C	36°C 2002	19°C 2015	22%
Dec 4	32°C	21°C	36°C 2000	18°C 2009	21%
Dec 5	32°C	21°C	36°C 2001	17°C 2006	21%
Dec 6	32°C	21°C	36°C 2001	17°C 2006	20%
Dec 7	32°C	20°C	35°C 2002	16°C 1994	20%
Dec 8	32°C	20°C	35°C 2009	16°C 1994	19%
Dec 9	33°C	20°C	35°C 2001	15°C 2003	18%
Dec 10	33°C	20°C	35°C 2006	16°C 2015	17%
Dec 11	33°C	20°C	36°C 2002	16°C 1994	15%
Dec 12	33°C	20°C	37°C 2002	16°C 2010	14%
Dec 13	33°C	20°C	37°C 2001	16°C 2015	13%
Dec 14	33°C	20°C	37°C 2002	16°C 2015	12%
Dec 15	33°C	20°C	37°C 2002	16°C 2015	12%
Dec 16	33°C	20°C	38°C 2001	15°C 2015	11%
Dec 17	33°C	20°C	38°C 2001	13°C 2015	11%
Dec 18	33°C	20°C	37°C 2001	13°C 2015	10%
Dec 19	33°C	20°C	37°C 2009	14°C 2015	10%
Dec 20	33°C	20°C	36°C 2009	15°C 2015	8%
Dec 21	34°C	20°C	37°C 2001	16°C 1998	8%
Dec 22	34°C	20°C	37°C 2001	16°C 2015	7%
Dec 23	34°C	20°C	37°C 2001	16°C 2002	7%
Dec 24	34°C	19°C	37°C 2001	15°C 1991	6%
Dec 25	34°C	19°C	37°C 2013	16°C 2019	7%
Dec 26	34°C	19°C	38°C 2001	16°C 2014	6%
Dec 27	34°C	19°C	38°C 2001	15°C 2014	6%
Dec 28	34°C	19°C	38°C 2001	15°C 2002	5%
Dec 29	34°C	19°C	37°C 2001	16°C 2014	5%
Dec 30	34°C	19°C	38°C 2000	16°C 2015	5%
Dec 31	34°C	19°C	37°C 2001	15°C 2015	5%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT).

December 1: sunrise 6:06 AM, sunset 5:50 PM
December 31: sunrise 6:21 AM, sunset 6:03 PM

Every day of December: 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.