September Weather in Omdurman, Sudan

Last updated: August 31, 2025

In September, Omdurman, Sudan experiences a sweltering climate characterized by a maximum temperature soaring to 42°C (109°F) and an average of 33°C (92°F). The nights offer a slight respite with lows averaging 23°C (75°F). Despite the heat, rainfall is minimal, with just 6 mm (0.2 in) of precipitation over the course of a single day, leading to a modest humidity level of 49%. This combination results in a distinctive desert atmosphere, making September a unique month for both residents and visitors alike.

September Temperature in Omdurman

In September, Omdurman experiences warm temperatures that reflect a slight decline from the height of summer. With minimums averaging at 23°C (75°F) and maximums reaching 42°C (109°F), this month maintains a consistent warmth characteristic of the region. The average temperature sits around 33°C (92°F), suggesting that while the days are still hot, the intense heat of the peak summer months is beginning to recede. This gradual cooling trend often encourages outdoor activities, making September a transition month where the oppressive summer heat starts to give way to milder conditions, setting the stage for October's even cooler temperatures.

September Weather in Omdurman: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Omdurman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Omdurman, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec737583909494918891908276
Data source: Temperature data for Omdurman generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Omdurman

In September, Omdurman experiences a slight dip in precipitation, receiving about 6 mm (0.2 in) of rain over a single day. This month marks a continuation of the wet season, yet the rainfall is significantly lower compared to the deluge of 32 mm (1.3 in) seen in August. Throughout the year, Omdurman typically remains dry, with no rainfall recorded from January to April and again in November and December. The transition from the peak rainy months of July and August to September suggests a gradual winding down of the monsoon, with drier conditions resuming in October. Overall, this pattern illustrates the stark contrasts in precipitation that define the climate of the region.

September Precipitation Trends in Omdurman

The chart displays monthly precipitation patterns in Omdurman, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Omdurman, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec00004411326500
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Omdurman

September in Omdurman, Sudan, marks a significant upswing in humidity, reaching 49%, the highest level for the year. This increase is part of a broader trend observable since the beginning of the summer months. As the calendar advances from July to August, the rise in humidity reflects the onset of the rainy season, peaking in September before beginning a gradual decline in October. Notably, the contrasts are stark when compared to the dry winter months, where humidity levels plummet to as low as 13% from January through April. This month serves as a transitional period, bridging the dry season with its balmy, wet counterpart.

September Average Humidity in Omdurman

This chart illustrates the average monthly humidity levels in Omdurman, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Omdurman is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec25%17%13%13%21%34%33%47%49%40%27%29%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Omdurman

In September, Omdurman, Sudan experiences an extreme UV Index of 11, which means outdoor enthusiasts should exercise caution as the burn time is a mere 10 minutes. This month marks a continuation of the intense UV conditions seen since February, with the UV Index remaining consistently high throughout the summer, peaking at 13 from March to May. As September unfolds, the potential for sunburn remains significant, matching the levels found in both July and August. This trend of heightened UV exposure persists into October, urging residents and visitors alike to protect their skin against the relentless sun. For more detailed information, visit the Omdurman UV Index.

Maximum UV Index Levels in Omdurman for September

The chart shows the monthly maximum UV Index (UVI) for Omdurman in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Omdurman typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131313101111111198
Data source: Omdurman September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Omdurman

In September, the sun continues its generous embrace of Omdurman, offering 326 hours of sunshine that reflect a slight dip from the peak of 360 hours in May. The trend throughout the year shows a vibrant tapestry of sunlight, with the spring months of March and April basking in abundant light at 345 hours each. As summer transitions to autumn, the hours gradually decline but remain robust compared to the rest of the year. Notably, September's sunshine serves as a gentle reminder that while days are drawing shorter, the warmth of the Sudanese sun continues to brighten the landscape. This consistent luminosity underscores the region's reputation for radiant skies, inviting both residents and visitors to revel in the enduring glow of Sudanese days.

Monthly Sunshine Duration in Omdurman: September Highlighted

The September sunshine duration represents the total number of hours Omdurman experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec268h304h345h345h360h346h342h337h326h332h317h326h
Data source: Omdurman September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Omdurman During September

In Omdurman, Sudan, the likelihood of sunny weather in September sees a modest boost, with a 64% chance of sun. This marks a recovery from the more overcast summer months of June and July, where the chances dip to 62% and 51% respectively. As the rainy season begins to fade, September serves as a transitional period, ushering in the promise of sunnier days ahead. Following this month, the weather becomes increasingly favorable with October reflecting an 85% chance of sunshine, indicating a clear upward trend leading into the more consistently sunny months of late autumn and winter.

Percentage of Sunny Days in September in Omdurman

The chart illustrates the percentage of sunny days in Omdurman throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Omdurman experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec96%89%94%83%80%62%51%56%64%85%97%87%
Data source: Omdurman September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Omdurman in September

In Omdurman, Sudan, the month of September continues the trend of consistent daylight that characterizes the region throughout the year. With 12 hours of daylight, September maintains the same duration seen in the preceding months of July and August, reflecting the stable climate typical of this time of year. As summer transitions into autumn, the daylight hours remain steady, offering ample time for outdoor activities and cultural experiences. This pattern of daylight duration underscores the predictable rhythm of life in Omdurman, where residents and visitors alike can bask in the warm sun before the days gradually shorten as October approaches.

Average Daylight Hours in Omdurman for September

The chart illustrates the variation in daylight duration in Omdurman throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 17m11h 37m12h 2m12h 28m12h 50m13h 1m12h 56m12h 36m12h 11m11h 45m11h 23m11h 12m
Data source: Omdurman daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Omdurman

As summer gently gives way to autumn, September in Omdurman, Sudan, welcomes a noticeable lull in the breeze, with average wind speeds dipping to 4.2 m/s (9 mph). This marks a shift from the vibrant gusts of July, which recorded a robust 6.6 m/s (15 mph), reflecting the peak of summer winds. Following July, August maintains a mild 5.4 m/s (12 mph), yet September's tranquil winds suggest a transition towards the calmer days of the coming months. This softening is consistent with the overall trend, as the latter half of the year generally showcases lower wind speeds, inviting a serene atmosphere as the region prepares for the cooler temperatures that October and November will bring.

Average September Wind Speed in Omdurman

The chart displays monthly wind speed patterns in Omdurman, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.75.56.15.44.54.66.65.44.2 m/s4.54.95.4
Data source: Omdurman September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Omdurman Compares to Other Months

Weather in Omdurman varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Omdurman, focusing on differences in temperature, rainfall, humidity, and UV levels.

September features a hot and humid climate, with average temperatures ranging from a minimum of 23°C (75°F) to a scorching maximum of 42°C (109°F). Despite the high temperatures, precipitation is minimal, with only 6 mm (0.2 in) expected over just one day, contributing to a humidity level of 49%. In stark contrast, January offers a much cooler and drier experience, with average temperatures starting at a low of 9°C (48°F) and peaking at 40°C (105°F). Remarkably, January sees no precipitation, resulting in a much lower humidity of 25%. For more details about the conditions in January, check out Omdurman weather in January.

In September, the weather is notably warmer, with average temperatures reaching 33°C (92°F) and maximum highs soaring up to 42°C (109°F). The month experiences a slight amount of precipitation, totaling 6 mm (0.2 in) over just one day, accompanied by a humidity level of 49%. In contrast, February showcases a more moderate climate, with average temperatures around 24°C (76°F) and a much lower humidity level of 16%. The temperature can still reach a maximum of 41°C (106°F), but February is remarkably dry, receiving no precipitation throughout the month. For more details, check out Omdurman weather in February.

September and March showcase contrasting weather patterns, particularly in temperature and humidity. In September, the minimum temperature starts at a warm 23°C (75°F), peaking at an average of 33°C (92°F), with extreme highs reaching up to 42°C (109°F). Additionally, September experiences a bit of rain with 6 mm of precipitation, coupled with a humidity level of 49%. On the other hand, March displays milder conditions, with minimum temperatures dropping to 14°C (57°F) and averaging 28°C (83°F), while also reaching the same maximum of 42°C. March stands out with dry weather, recording no precipitation and significantly lower humidity at only 13%. For more insights into the atmospheric conditions specific to March, you can visit Omdurman weather in March.

In September, the weather is generally hot, with temperatures ranging from a minimum of 23°C (75°F) to a maximum of 42°C (109°F) and an average of 33°C (92°F). Although the month experiences a bit of rain, with approximately 6 mm of precipitation over just one day, the humidity remains moderate at 49%. In contrast, April presents even higher maximum temperatures, reaching up to 44°C (111°F), with a minimum of 17°C (63°F) and an average of 32°C (90°F). Remarkably, April is much drier, with no recorded precipitation and humidity levels dropping to just 13%. For more detailed information, you can check Omdurman weather in April.

In comparing the weather between September and May, both months are characterized by high temperatures, but they showcase some notable differences. September has a minimum temperature of 23°C (75°F) and reaches a maximum of 42°C (109°F), while May sees slightly higher extremes with a minimum of 22°C (72°F) and a maximum of 45°C (114°F). Humidity levels differ as well; September's humidity averages around 49%, making it feel more uncomfortable than May's drier atmosphere, which boasts only 21% humidity. Both months experience minimal precipitation, with September receiving about 6 mm (0.2 in) over one day and May slightly less at 4 mm (0.2 in) over one day. For more details on weather conditions specific to May, you can visit Omdurman weather in May.

In comparing the weather between September and June, September typically features slightly lower temperatures, with a minimum of 23°C (75°F) and an average of 33°C (92°F), while June experiences a higher minimum of 25°C (76°F) and a warmer average of 35°C (94°F). Both months are characterized by minimal rainfall, with September receiving 6 mm (0.2 in) over 1 day and June seeing slightly less at 4 mm (0.2 in) during the same duration. Additionally, humidity levels in September are notably higher at 49%, compared to June's relatively lower 34%. For a deeper look into June weather specifics, you can visit Omdurman weather in June.

In comparing the weather of September and July, both months share similar temperature ranges, with September seeing a minimum of 23°C (75°F) and an average of 33°C (92°F), while July has almost identical figures with a minimum of 23°C (73°F) and an average of 33°C (91°F). However, July typically experiences slightly higher maximum temperatures, reaching up to 43°C (110°F) compared to September's peak of 42°C (109°F). Precipitation is more common in July, with 11 mm (0.4 in) over 2 days, whereas September only sees 6 mm (0.2 in) on just 1 day. Additionally, humidity levels are lower in July at 33%, compared to September’s 49%, making July feel drier despite the higher precipitation. For more detailed insights, you can check out Omdurman weather in July.

In comparing the weather of September and August, September tends to be slightly hotter on average, with temperatures ranging from a minimum of 23°C (75°F) to a maximum of 42°C (109°F), resulting in an average temperature of 33°C (92°F). In contrast, August sees a lower average temperature of 31°C (89°F) with the same minimum and maximum temperatures. Additionally, September experiences significantly less precipitation, with only 6 mm (0.2 in) over 1 day, compared to August's 32 mm (1.3 in) over 4 days. Humidity is also slightly higher in August at 47%, compared to September's 49%. For more details on August's weather, visit Omdurman weather in August.

September weather is characterized by high temperatures, with minimums around 23°C (75°F), average highs reaching up to 33°C (92°F), and maximums peaking at 42°C (109°F). The month experiences minimal rainfall, with only 6 mm (0.2 in) over just a single day, while humidity levels average around 49%. In contrast, October sees a slight dip in temperatures, with minimums at 21°C (71°F) and average highs of 32°C (90°F), while maximums remain close at 41°C (107°F). The precipitation decreases to 5 mm (0.2 in), but importantly, it falls over zero days, resulting in lower humidity at approximately 40%. For more details on October's climate, you can visit Omdurman weather in October.

September and November exhibit significant differences in weather patterns. September is characterized by much warmer temperatures, with a minimum of 23°C (75°F) and average highs reaching up to 42°C (109°F). In contrast, November presents a cooler climate, with temperatures dipping to a minimum of 15°C (59°F) and an average high of 40°C (104°F). Additionally, September experiences a slight amount of precipitation with 6 mm (0.2 in) over just one day, while November remains entirely dry, recording 0 mm of precipitation and 0 rainy days. Humidity levels also differ notably, with September averaging 49%, compared to a much lower 27% in November. For more detailed insight into the November climate, you can refer to Omdurman weather in November.

In September, the weather is characterized by significantly higher temperatures, with a minimum of 23°C (75°F) and an average of 33°C (92°F), reaching a maximum of 42°C (109°F). The humidity is relatively high at 49%, and there is minimal precipitation, averaging just 6 mm over one day. In contrast, December offers much cooler temperatures, with a range from a minimum of 12°C (54°F) to a maximum of 36°C (98°F) and an average of 24°C (76°F). Notably, December experiences dry conditions, with no recorded precipitation and decreased humidity at 29%. For more insights on December weather, you can explore Omdurman weather in December.

Compare Omdurman's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Omdurman

As September rolls in, Omdurman's weather begins to shift, offering a welcome reprieve from the scorching summer months. With average temperatures dipping slightly and maximum highs around 42°C (109°F), it becomes a bit more bearable, although still quite warm. The solitary day of rain brings a touch of humidity, softening the dry air that typically dominates the region. This transition hints at the unfolding of the cooler autumn months ahead, making September a unique blend of lingering heat and the promise of more comfortable days. For more detailed insights, visit Omdurman Climate.