Last updated: August 31, 2025
September in Khartoum, Sudan is characterized by its sweltering temperatures, with a maximum reach of 42°C (109°F) and an average of 33°C (92°F). Nighttime brings a slight respite, as temperatures dip to a minimum of 24°C (76°F). The month sees minimal rainfall, accumulating only 6 mm (0.2 in) over a single day, making the air feel particularly dry with a humidity level of around 49%. Overall, September presents a typical hot and arid climate, ideal for those who relish the heat and clear skies.
In September, Khartoum, Sudan, experiences a warm climate as summer begins to wane. With temperatures ranging from a minimum of 24°C (76°F) to a maximum of 42°C (109°F), the heat remains palpable, though slightly moderated compared to the searing months of May and June. The average temperature hovers around 33°C (92°F), maintaining a consistent warmth that characterizes the region. As the month unfolds, the gradual transition towards cooler autumn temperatures becomes evident, marking a significant shift from the peak heat of summer. This trend signals a subtle reprieve, making September an intriguing time for those wishing to experience Khartoum's vibrant atmosphere before the temperatures dip further in October.
In September, Khartoum experiences a modest decline in precipitation, accumulating 6 mm (0.2 in) over just one day of rain. This month marks a noticeable shift from the heavier monsoon showers of August, which brought 34 mm (1.3 in) across six days. While the rains start to taper off, September serves as a transitional period as the city moves toward the drier months of the year. Following this brief bout of moisture, rainfall drops sharply, with only 7 mm (0.3 in) expected in October. Overall, this pattern illustrates Khartoum’s distinct wet season, characterized by a steady increase in rainfall from May through August, followed by a swift decline, emphasizing the region's stark contrast between wet and dry phases.
In September, Khartoum experiences a notable rise in humidity, reaching 49%, making it one of the most humid months of the year. This increase marks a significant shift from the drier conditions of the earlier months—where humidity levels plummeted to as low as 13% in March and April. As the rainy season approaches, the gradual climb in humidity throughout the summer culminates in September, creating a sultry atmosphere. Following September, humidity begins to wane, dropping to 40% in October, suggesting a transitional phase as the city prepares for the cooler, drier months ahead. This trend underscores the stark contrast between the arid beginnings of the year and the moist conditions that define Khartoum's late summer and early autumn.
In September, Khartoum experiences a UV Index of 11, placing it firmly in the extreme exposure category with a burn time of just 10 minutes. This trend of high UV levels continues from the previous months, reflecting a significant consistency in the extreme UV conditions during the late summer and early fall. Notably, this level of sun intensity is similar to that observed in both July and August, signaling that safety precautions are still essential for outdoor activities. As we transition into the fall, the UV Index begins to plateau, suggesting that residents and visitors should maintain their sun protection strategies as the sun's potency remains relentless. For further insights on UV levels year-round, check out the detailed guide at Khartoum UV Index.
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As September unfolds in Khartoum, the city basks in 326 hours of sunlight, continuing the impressive trend established over the months. Following the peak of 360 hours in May, sunshine hours gradually taper off but remain robust, showcasing a resilient warmth that characterizes the region. While slightly less than the summer's peak, September still offers ample sunlight, hinting at the transition into the cooler months ahead. This steady glow not only enriches the city's atmosphere but also invites residents and visitors alike to revel in the vibrancy of Sudanese life under the sun-drenched skies. The gradual decline through September reflects a gentle shift, setting the stage for the golden hues of autumn as the days slowly shorten, yet the spirit of the sun remains a constant in Khartoum's charm.
September in Khartoum, Sudan, marks a transition in weather patterns, with a 62% chance of sunny days. While this figure is significantly lower than the sun-soaked start to the year—where January boasts an impressive 95% likelihood—it's still a considerable improvement over the rainier summer months. After the peak heat and humidity of July and August, which see only 49% and 54% sunny days respectively, September signals the gradual return of clarity and warmth. As the city awaits the brighter days of October, which features an 82% chance of sunshine, September serves as a bridge, hinting at the gradual shift towards more favorable weather conditions.
In September, Khartoum enjoys approximately 12 hours of daylight, continuing the trend established in the preceding months. As summer wanes and the days gradually shorten, the city's daylight duration remains relatively stable at this mid-range level. Notably, from March to August, daylight increased to a peak of 13 hours in June before gently settling back to 12 hours. This pattern reflects the gradual transition from the longer days of summer toward the shorter daylight hours characteristic of the upcoming autumn months, with October bringing a return to 11 hours of daylight. Overall, September embodies a serene balance of light that characterizes many transitional seasons, making it a time of notable consistency in Khartoum's daylight experience.
As the seasons shift in Khartoum during September, the winds begin to soften, with an average speed of just 4.0 m/s (9 mph), making it one of the calmest months of the year. Following the breezy heights of July, when gusts reached up to 6.3 m/s (14 mph), this noticeable drop marks a transitional phase, hinting at the approaching end of summer. The prevailing trend shows that after the warm and windy summer months, winds tend to ease into the fall, creating a more tranquil atmosphere. This gentle September breeze invites residents and visitors alike to savor the unique blend of warmth and serenity that characterizes this time of year in Sudan’s capital.
Weather in Khartoum varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Khartoum, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. September experiences significantly warmer temperatures, with a minimum of 24°C (76°F) and an average soaring to 33°C (92°F), culminating in highs that can reach up to 42°C (109°F). While there is minimal precipitation of 6 mm (0.2 in) over just one day, the humidity remains relatively high at 49%. In contrast, January brings much cooler temperatures, with a minimum of 10°C (49°F) and an average of 23°C (74°F), peaking at 41°C (105°F). This month is notably dry, with no recorded precipitation or rain throughout the month, and the humidity drops to a comfortable 25%. For more details on January weather, you can check Khartoum weather in January.
In September, the weather is notably warmer, with average temperatures reaching 33°C (92°F) and highs peaking at 42°C (109°F). The month experiences some precipitation, albeit minimal, with an average of only 6 mm (0.2 in) over one day, and humidity levels around 49%. In contrast, February presents a much cooler climate, with average temperatures dropping to 25°C (77°F) and minimums around 11°C (52°F). Interestingly, February boasts no recorded precipitation, and humidity levels significantly decrease to just 16%. For a detailed look at February's weather patterns, visit Khartoum weather in February.
In September, temperatures in Khartoum range from a minimum of 24°C (76°F) to a scorching maximum of 42°C (109°F), with an average temperature of 33°C (92°F). This month experiences minimal precipitation of 6 mm (0.2 in) over just one day, accompanied by a humidity level of 49%. In contrast, March presents slightly cooler conditions, with temperatures ranging from a minimum of 15°C (58°F) to a maximum of 43°C (109°F) and an average of 29°C (84°F). Notably, there is no recorded precipitation in March, with humidity dropping significantly to 13%. For more details, you can check out Khartoum weather in March.
In September, the weather in Khartoum features a minimum temperature of 24°C (76°F) and an average of 33°C (92°F), with maximum temperatures reaching up to 42°C (109°F). This month experiences some precipitation, with about 6 mm (0.2 in) of rain over just one day, and the humidity is relatively moderate at 49%.
In contrast, April sees slightly cooler nighttime temperatures, with a minimum of 18°C (65°F) and an average temperature similar to September at 33°C (91°F). However, the maximum can reach an even hotter 44°C (112°F) without any recorded precipitation, making it a dry month with no rainy days and significantly lower humidity at just 13%. For more details, check Khartoum weather in April.
In comparing the weather of September and May, we see notable differences in temperature and humidity. September experiences a minimum temperature of 24°C (76°F) and averages around 33°C (92°F), peaking at 42°C (109°F), while May is slightly cooler with a minimum of 23°C (74°F) and an average of 35°C (95°F), although it can reach as high as 46°C (114°F). Both months have low precipitation, with September receiving 6 mm (0.2 in) on just 1 day, and May receiving even less at 4 mm (0.1 in) on a similar frequency. Additionally, September has a higher humidity level of 49%, compared to May’s much drier 21%, making May feel considerably hotter despite the slightly lower temperatures. For a more detailed look, you can check Khartoum weather in May.
In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 42°C (109°F), with an average of 33°C (92°F). The month sees very little precipitation, totaling just 6 mm (0.2 in) over the course of 1 day, and a humidity level of 49%. In contrast, June experiences slightly higher temperatures, with a minimum of 26°C (79°F) and a maximum of 45°C (113°F), averaging around 35°C (95°F). Precipitation in June is also low, at 6 mm (0.3 in) over 2 days, but the humidity is notably lower at 34%. For more detailed information, please visit Khartoum weather in June. Overall, while both months are hot and dry, September offers a bit more humidity and slightly cooler average temperatures compared to the sweltering conditions of June.
September and July both showcase warm temperatures, but September tends to have slightly higher maximum temperatures, reaching up to 42°C (109°F) compared to July's 43°C (110°F). The average temperature remains similar, with September at 33°C (91°F) and July also averaging 33°C (92°F). However, September experiences less precipitation, with only 6 mm over 1 day, while July sees 13 mm over 2 days, indicating a drier month. Additionally, September's humidity is higher at 49%, contrasting with July's 33%, making September feel more humid overall. For a more detailed look at July's weather, visit Khartoum weather in July.
In comparing the weather between August and September, September experiences slightly higher average temperatures, with a minimum of 24°C (76°F) and an average of 33°C (92°F), compared to August's minimum of 23°C (74°F) and average of 31°C (88°F). Both months can reach similar maximum temperatures, peaking at 42°C (109°F) in September and 42°C (108°F) in August. However, September is considerably drier, with only 6 mm (0.2 in) of precipitation over just 1 day, whereas August sees much more rainfall at 34 mm (1.3 in) across 6 days. Humidity levels are also slightly higher in August at 47%, compared to September's 49%. For a more detailed look at August's weather, visit Khartoum weather in August.
In September, the weather features a minimum temperature of 24°C (76°F) and reaches a maximum of 42°C (109°F), with an average temperature of 33°C (92°F). The month experiences minimal precipitation, averaging just 6 mm (0.2 in) over one day, and humidity levels hover around 49%.
In contrast, October sees a slight drop in minimum temperature to 22°C (72°F), while the highs remain consistent, peaking at 42°C (107°F) with an average still around 33°C (91°F). Precipitation increases slightly to 7 mm (0.3 in) over one day, and humidity levels decrease to 40%. For more detailed information, check out Khartoum weather in October.
In September, the weather is typically hotter, with daily temperatures ranging from a minimum of 24°C (76°F) to an average of 33°C (92°F), peaking at a maximum of 42°C (109°F). This month also experiences some rainfall, with about 6 mm of precipitation over a single day, and humidity levels sit at 49%. In contrast, November offers a more temperate climate, with temperatures dropping to a minimum of 16°C (61°F) and an average of 28°C (83°F), while still reaching highs of 40°C (104°F). Notably, November is dry, recording no precipitation at all, and a significantly lower humidity of 27%. For more details, visit Khartoum weather in November.
In September, the weather is characterized by high temperatures, with minimums around 24°C (76°F) and maximums soaring up to 42°C (109°F), averaging 33°C (92°F). The month sees minimal rainfall, with only 6 mm (0.2 in) across just one day and humidity levels at 49%. In contrast, December brings much cooler temperatures, with minimums dropping to 13°C (56°F) and maximums reaching 37°C (98°F), averaging at 25°C (77°F). Notably, December experiences no rainfall at all, resulting in 0 mm (0.0 in) across the month and lower humidity levels at 29%. For more details on December weather, check out Khartoum weather in December.
As September rolls in, Khartoum experiences a unique blend of warmth and dryness, distinguishing it from the sweltering summer months and the upcoming transition into autumn. With daytime highs reaching up to 42°C and a notable average of 33°C, the heat remains intense, but the sporadic 6 mm of rainfall and reduced humidity at 49% offer a refreshing change. This single rainy day marks a slight reprieve from the dryness experienced earlier in the summer, heralding the gradual shift toward more comfortable weather in the months ahead. For a deeper look into what to expect in this vibrant city, explore the complete Khartoum Climate.