September weather forecast
Khartoum, Sudan

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River Nile flowing past the city of Khartoum, Sudan
River Nile flowing past the city of Khartoum, Sudan

Weather in September

September presents itself as the city’s link to the drier last quarter, with rainfall reducing. Khartoum's arid spell begins to return as the humidity starts a downward trend. Cloud cover reduces noticeably, extending longer bouts of sunshine while the torrential August rain takes its leave. September sees temperatures from 26.3°C (79.3°F) with highs at 38.7°C (101.7°F), being the testament for the year's downswing. As rainfall continues to dwindle, Khartoum readies for October's lesser extremes.

Temperature

The onset of September brings with it an average high-temperature of a still fiery hot 38.7°C (101.7°F), showing a negligible variation from the month before. Despite drastic daily temperature oscillations, Khartoum cools down to an average low-temperature of 26.3°C (79.3°F) in September.

Heat index

During September, the heat index is evaluated at a blazing hot 45°C (113°F). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In Khartoum, Sudan, the average relative humidity in September is 40%.

Rainfall

In Khartoum, Sudan, during September, the rain falls for 3.4 days and regularly aggregates up to 27mm (1.06") of precipitation. In Khartoum, during the entire year, the rain falls for 14.7 days and collects up to 121mm (4.76") of precipitation.

Daylight

In Khartoum, Sudan, the average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 05:37 and sunset at 18:02. On the last day of September, in Khartoum, Sudan, sunrise is at 05:39 and sunset at 17:39 CAT.

Sunshine

The average sunshine in September in Khartoum is 10h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 12 in September translates into the following recommendations:
Carry out all vital precautions. Protection from sun exposure is a must. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended. After a swim or outdoor exercise, one should liberally reapply broad-spectrum sunscreen with a sun protection factor of 30 or higher.
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Frequently asked questions

How hot does it get in Khartoum in September?

An average high-temperature, in September, in Khartoum, is 38.7°C (101.7°F) and the average low-temperature is 26.3°C (79.3°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is evaluated at 45°C (113°F).

What is the average humidity in September in Khartoum?

The average relative humidity in September in Khartoum is 40%.

How much does it rain in Khartoum in September?

In Khartoum, Sudan, in September, during 3.4 rainfall days, 27mm (1.06") of precipitation is typically accumulated.

What is the average length of the day in September in Khartoum?

The average day length in September in Khartoum, Sudan, is 12h and 13min.

What time are sunrise and sunset in September in Khartoum?

On the first day of September, sunrise is at 05:37 and sunset at 18:02. On the last day of the month, sunrise is at 05:39 and sunset at 17:39 CAT.

How long on average sun shines in September in Khartoum?

In September, the average sunshine duration in Khartoum, Sudan, is 10h.

When is the highest UV index in Khartoum?

The months with the highest UV index in Khartoum are March through September, with an average maximum UV index of 12.

What is the UV index intensity in September in Khartoum?

The average daily maximum UV index in September is 12. A UV Index value of 11, and more, symbolizes an extreme health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Khartoum, Sudan

Average temperature in September - Khartoum, Sudan
  • Average high temperature in September: 38.7°C

The warmest month (with the highest average high temperature) is May (41.9°C).
The month with the lowest average high temperature is January (30.7°C).

  • Average low temperature in September: 26.3°C

The month with the highest average low temperature is June (27.6°C).
The coldest month (with the lowest average low temperature) is January (15.6°C).

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Average humidity in September
Khartoum, Sudan

Average humidity in September - Khartoum, Sudan
  • Average humidity in September: 40%

The month with the highest relative humidity is August (49%).
The month with the lowest relative humidity is April (16%).

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Average rainfall in September
Khartoum, Sudan

Average rainfall in September - Khartoum, Sudan
  • Average rainfall in September: 26.7mm

The wettest month (with the highest rainfall) is August (48.3mm).
The driest months (with the least rainfall) are January, February, April and December (0mm).

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Average rainfall days in September
Khartoum, Sudan

Average rainfall days in September - Khartoum, Sudan
  • Average rainfall days in September: 3.4 days

The month with the highest number of rainy days is August (4.2 days).
The months with the least rainy days are January, February, April, November and December (0 days).

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Average daylight in September /
Average sunshine in September
Khartoum, Sudan

Average daylight in September / Average sunshine in September - Khartoum, Sudan
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).

  • Average sunshine in September: 10h and 0min

The month with the most sunshine is February (Average sunshine: 11h and 6min).
The months with the least sunshine are July and August (Average sunshine: 9h and 0min).

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Average UV index in September
Khartoum, Sudan

Average UV index in September - Khartoum, Sudan
  • Average UV index in September: 12

The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).

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Khartoum, Sudan

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