Khartoum weather in September

Sudan · long-term averages 2001–2025 · full-year climate of Khartoum

Average high
39 °C102 °F
Average low
26 °C78 °F
Precipitation
20 mm0.8 in
Daylight
12.2 h
Humidity
44%
Cloud amount
45%

In September, Khartoum has an average high of 39 °C102 °F and an average low of 26 °C78 °F, with about 20 mm0.8 in of precipitation. It is the 4th warmest month of the year and ranks 3rd for precipitation.

How September compares with other months

Compared with August, September is 1.5 °C2.6 °F warmer on average and drier by 38 mm1.5 in. Compared with October, September is about the same temperature and wetter by 11 mm0.4 in. Daylight lasts about 12.2 hours around the middle of the month. Average relative humidity is 44% and the average cloud amount 45%.

Is September a good time to visit Khartoum?

September is not among the most comfortable months by our comfort score: it is hot (average high 39 °C102 °F). The most comfortable months in Khartoum are December and January.

What to wear in September

For Khartoum in September, pack very light, breathable clothing, a sun hat and plenty of water.

September in nearby places

September averages in nearby places
PlaceHigh °C°FLow °C°FPrecip. mmin
Khartoum391022678200.8
Al Manaqil34942374441.8
Wad Medani34932474552.2
Sennar32892476692.7
Kosti34932475662.6
Atbara42107288270.3
Singa31882577753.0
Al Qadarif28832679843.3
El Obeid34932271562.2

Nearby places that are more than 1 °C1.8 °F warmer in September: Atbara; cooler: Al Manaqil, Wad Medani, Sennar and Kosti.

Other months in Khartoum

  • January31 °C87 °F / 14 °C56 °F
  • February34 °C93 °F / 16 °C61 °F
  • March37 °C99 °F / 19 °C66 °F
  • April41 °C105 °F / 23 °C73 °F
  • May42 °C108 °F / 26 °C79 °F
  • June42 °C108 °F / 28 °C82 °F
  • July39 °C102 °F / 27 °C80 °F
  • August36 °C97 °F / 25 °C77 °F
  • September39 °C102 °F / 26 °C78 °F
  • October39 °C103 °F / 25 °C77 °F
  • November35 °C96 °F / 19 °C66 °F
  • December32 °C89 °F / 15 °C59 °F

Frequently asked questions

How warm is Khartoum in September?

In September the average high in Khartoum is 39 °C (102 °F) and the average low is 26 °C (78 °F).

Does it rain a lot in Khartoum in September?

On average about 20 mm (0.8 in) of precipitation falls in September; it ranks 3rd of the 12 months.

Is September the warmest month in Khartoum?

No. The warmest month in Khartoum is May, with an average high of 42 °C (108 °F). The coldest month is January, with an average low of 14 °C (56 °F).

How long is the day in Khartoum in September?

In the middle of September the day in Khartoum lasts about 12.2 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.

How humid is Khartoum in September?

The average relative humidity in September is about 44%. This is a long-term average for the whole day.

How cloudy is Khartoum in September?

On average about 45% of the sky is covered by cloud in September. This is the mean cloud amount from satellite data, not the number of sunny days.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.