Climate averages 1991–2020

Gereida weather
in December.

A hot, very dry month: the 8th warmest and one of the driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 32.4°C Daytime mean, December
Average low 18.4°C Night-time mean, December
Rainfall <1 mm Almost no rain
Daylight 11 h Sunrise to sunset, per day
Every month in Gereida · average highYear overview

December is a hot month in Gereida: daytime highs average 32.4°C and nights cool to about 18.4°C. By daytime temperature it is the 8th warmest of the 12 months.

Rain is very rare: less than 1 mm falls in a typical December (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 11 h 29 min on an average December day.

The nearest other city in this atlas is Nyala (91 km away). In December its highs average 30.6°C, 1.8°C cooler than Gereida, with almost no rain (under 1 mm).

Among the 22 cities listed in Sudan, Gereida ranks 10th of 22 for the warmest December highs and joint 1st of 22 for the driest December (rainfall, lowest first). The mean December high of those 22 cities is 31.9°C; Gereida is 0.6°C warmer than that mean.

From December to January, average highs fall by 0.5°C to 31.9°C, and monthly rainfall stays under 1 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 15202530354045 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Gereida climate table

1991–2020
Monthly climate averages for Gereida, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 31.9°C17.4°C17.4°C00.011.512 h
February 34.5°C19.5°C19.5°C00.011.812 h
March 37.4°C22.3°C22.3°C1.10.312.112 h
April 39.2°C24.2°C24.2°C3.60.812.412 h
May 38.2°C25.2°C25.2°C265.312.613 h
June 35.1°C24.7°C24.7°C6211.412.813 h
July 31.5°C23.1°C23.1°C10717.412.713 h
August 30.4°C22.4°C22.4°C13119.212.512 h
September 31.8°C22.8°C22.8°C8814.812.212 h
October 34.8°C22.9°C22.9°C327.211.912 h
November 35.2°C21.6°C21.6°C0.70.111.612 h
December, selected 32.4°C18.4°C18.4°C00.011.511 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

December in nearby cities

Distance from Gereida

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Gereida) is explained once on the Gereida year overview and on the Sources, method and limits page.