Climate averages 1991–2020

Gereida weather
in January.

A hot, very dry month: the 9th warmest and one of the driest of the year.

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

Average high 31.9°C Daytime mean, January

Average low 17.4°C Night-time mean, January

Rainfall <1 mm Almost no rain

Daylight 12 h Sunrise to sunset, per day

January is a hot month in Gereida: daytime highs average 31.9°C and nights cool to about 17.4°C. By daytime temperature it is the 9th warmest of the 12 months.

Rain is very rare: less than 1 mm falls in a typical January (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 11 h 32 min on an average January day.

The nearest other city in this atlas is Nyala (91 km away). In January its highs average 30.1°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 January highs and joint 1st of 22 for the driest January (rainfall, lowest first). The mean January high of those 22 cities is 31.1°C; Gereida is 0.8°C warmer than that mean.

From January to February, average highs rise by 2.6°C to 34.5°C, and monthly rainfall stays under 1 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

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
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	31.9°C17.4°C	17.4°C	0	0.0	11.512 h
February	34.5°C19.5°C	19.5°C	0	0.0	11.812 h
March	37.4°C22.3°C	22.3°C	1.1	0.3	12.112 h
April	39.2°C24.2°C	24.2°C	3.6	0.8	12.412 h
May	38.2°C25.2°C	25.2°C	26	5.3	12.613 h
June	35.1°C24.7°C	24.7°C	62	11.4	12.813 h
July	31.5°C23.1°C	23.1°C	107	17.4	12.713 h
August	30.4°C22.4°C	22.4°C	131	19.2	12.512 h
September	31.8°C22.8°C	22.8°C	88	14.8	12.212 h
October	34.8°C22.9°C	22.9°C	32	7.2	11.912 h
November	35.2°C21.6°C	21.6°C	0.7	0.1	11.612 h
December	32.4°C18.4°C	18.4°C	0	0.0	11.511 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

January 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.