Byumba Weather in December

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

Average highs run from 23°C on December 1 to 24°C on December 31, and lows from 14°C to 13°C. Normal precipitation for the month is 114 mm over about 21 wet days.

December day by day

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

Normal low
Normal high
Record high
Record low

December at a glance

Average high: 23°C
Average low: 13°C
Precipitation: 114 mm
Record high: 31°CDec 17, 2005
Record low: 11°CDec 30, 1988
Daylight: 12 h 12 min to 12 h 13 min
Cloud cover: 77%
Humidity: 79%
Dew point: 14°C
Wind: 6.1 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	Record high	Record low	Chance wet
Dec 1	23°C	14°C	29°C 1998	14°C 1988	82%
Dec 2	23°C	14°C	29°C 2015	15°C 1995	82%
Dec 3	23°C	14°C	29°C 2012	14°C 1995	82%
Dec 4	23°C	14°C	28°C 2004	14°C 2006	82%
Dec 5	23°C	14°C	29°C 2004	14°C 1984	81%
Dec 6	23°C	13°C	28°C 1995	14°C 1988	80%
Dec 7	23°C	13°C	30°C 2010	14°C 1995	78%
Dec 8	23°C	13°C	30°C 2014	13°C 1989	77%
Dec 9	23°C	13°C	29°C 2012	14°C 1995	75%
Dec 10	23°C	13°C	29°C 2012	14°C 1983	74%
Dec 11	23°C	13°C	29°C 2004	14°C 1989	72%
Dec 12	23°C	13°C	29°C 1996	15°C 1995	72%
Dec 13	23°C	13°C	30°C 1996	14°C 1982	71%
Dec 14	23°C	13°C	30°C 1996	13°C 1990	70%
Dec 15	23°C	13°C	30°C 2014	12°C 1985	69%
Dec 16	23°C	13°C	30°C 2014	13°C 1988	68%
Dec 17	24°C	13°C	31°C 2005	14°C 1985	66%
Dec 18	24°C	13°C	31°C 2005	15°C 1985	64%
Dec 19	24°C	13°C	31°C 2005	14°C 1995	62%
Dec 20	24°C	13°C	31°C 2005	14°C 1995	61%
Dec 21	24°C	13°C	31°C 2005	14°C 1989	61%
Dec 22	24°C	13°C	31°C 2005	14°C 1988	61%
Dec 23	24°C	13°C	31°C 2004	12°C 2020	60%
Dec 24	24°C	13°C	30°C 2005	16°C 1987	60%
Dec 25	24°C	13°C	30°C 2005	16°C 1996	60%
Dec 26	24°C	13°C	29°C 2004	15°C 1994	60%
Dec 27	24°C	13°C	29°C 2015	13°C 1986	59%
Dec 28	24°C	13°C	30°C 2004	14°C 1995	59%
Dec 29	24°C	13°C	31°C 1987	14°C 1975	59%
Dec 30	24°C	13°C	31°C 2015	11°C 1988	59%
Dec 31	24°C	13°C	30°C 1987	11°C 1984	58%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+2).

December 1: sunrise 5:43 AM, sunset 5:55 PM
December 31: sunrise 5:56 AM, sunset 6:09 PM

Every day of December: sun and moon

Other months

Sources

Records: NOAA GHCN-Daily, station RWM00064387, every year on file, quality-flagged values removed. 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 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.