Last updated: August 21, 2025
In Gao, Mali, the weather in September presents a blend of warmth and occasional rainfall. With a maximum temperature soaring to 44°C (111°F) and an average temperature around 33°C (92°F), the month is characterized by its intense heat. Temperatures rarely drop below 24°C (76°F), creating a sultry atmosphere. Despite this warmth, September brings about 13 mm (0.5 in) of rainfall over a total of just 3 days, contributing to a relative humidity of 63%. This combination of high temperatures and sporadic precipitation offers a unique climate experience in this vibrant region.
In September, the temperatures in Gao, Mali, continue the trend of the preceding months, with minimums around 24°C (76°F) and average daytime highs reaching 33°C (92°F). This month marks a slight cooldown from the scorching summer peak, as maximum temperatures stay consistent at about 44°C (111°F). The heat is tempered just enough to make outdoor activities more enjoyable, while the overall warm climate persists, setting the stage for the transition into cooler autumn months. As the year progresses into October, one can expect a gradual decline in temperatures, signaling the end of the sweltering season.
In Gao, Mali, September marks a transitional phase in the precipitation trends as the region shifts from the heavy rains of August to a more subdued pattern. With 13 mm (0.5 in) of rainfall over just 3 days, September experiences a significant decrease compared to August's 79 mm (3.1 in), which showcases the peak of the rainy season. This decline hints at the approaching dry months, as the region prepares to enter October, which typically sees minimal precipitation. The brief yet notable rainfall in September is essential for replenishing water sources, serving as a final gasp of the wet season before the long period of dryness sets in.
In Gao, Mali, September marks a notable peak in humidity, reaching 63%, as the region transitions from the sultry summer months. Following a steady rise from a modest 10% in March, humidity climbs gradually, culminating in the late summer's tropical embrace. This surge reflects the shift from the dry season to the wet season, with August already experiencing a significant level of moisture at 60%. As the humidity remains elevated through September, it serves as a harbinger of the upcoming rains, fostering a lush environment that contrasts sharply with the near-desert conditions of the earlier months. Notably, after the peak in September, humidity begins to decline in October, settling at 43%, signaling the return to drier weather as the year winds down.
In September, Gao, Mali continues to experience a significant UV Index of 12, categorized as extreme. As the dry season approaches its end, the intensity of the sun remains high, with a burn time of just 10 minutes for unprotected skin. This pattern of extreme UV exposure, prominent since April, indicates a trend of consistently dangerous levels of UV radiation during the summer months. It's crucial for residents and visitors alike to take protective measures, such as wearing sunscreen and appropriate clothing, as they navigate the intense sunlight. For more detailed insights into the UV Index throughout the year, you're welcome to check Gao UV Index.
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In Gao, Mali, September basks in a radiant glow, contributing 319 hours of sunshine to the year’s total. As summer peaks, the sun continues to shine brightly, following a trend established in the preceding months, where sunshine hours remain consistently robust. From 337 hours in both July and May to a slight dip in September, the consistent exposure to sunlight underscores a seasonally warm climate. While September's hours slightly decline from the summer highs, it remains a vibrant month filled with warmth, setting the tone for the transitioning into autumn. The gentle decrease keeps the sun's presence strong, creating an inviting atmosphere as the days gradually shorten into October.
In Gao, Mali, the likelihood of sunny weather experiences a notable decline as summer transitions into autumn. September holds a 63% chance of sunshine, a dip from the preceding months of June (82%) and July (64%). This decrease reflects an overall trend of diminishing sunlight, with August featuring the lowest probability of 52%. As the year progresses, the sunny days of early fall can be refreshing, but travelers should be prepared for the potential of cloudier skies compared to the more reliably sunny months earlier in the year, such as January and March, which boast chances of 86% and 80% respectively.
In Gao, Mali, the rhythm of daylight reveals a fascinating pattern throughout the year. September stands out with 12 hours of daylight, perfectly echoing the months preceding it. As spring transitions into summer, daylight gradually increases to a peak of 13 hours in June. Following this peak, the hours of sunlight remain consistent at 12 hours from July through September, providing a balanced and stable light for the vibrant activities of the season. As the year progresses into October, daylight begins to wane again, returning to 11 hours by November and maintaining that duration through December. This cyclical fluctuation of daylight enhances the unique charm of Gao, shaping the daily lives and rhythms of its inhabitants.
As the summer heat begins to wane, September in Gao, Mali, ushers in a gentle refreshment with an average wind speed of 4.1 m/s (9 mph). This marks a slight dip compared to the stronger breezes experienced in July, which peaks at 4.7 m/s (11 mph), but it remains consistent with the winds of June and August. Over the year, a notable trend reveals how the winds fluctuate, often reaching their heights in the hotter months before calming as autumn approaches. The overall pattern illustrates a steady wind flow that hints at the transition into cooler seasons, offering both respite from the sweltering heat and a sense of tranquil change in the air.
Weather in Gao varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Gao, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by high temperatures, with a minimum of 24°C (76°F) and an average of 33°C (92°F), reaching up to 44°C (111°F). The month experiences some precipitation, with about 13 mm (0.5 in) over 3 days, and a humidity level of 63%, contributing to a hot and humid atmosphere. In contrast, January brings a significant drop in temperatures, with a minimum of 7°C (44°F) and an average of 23°C (74°F), peaking at 39°C (102°F). Notably, January is dry, recording no precipitation and just 15% humidity, resulting in a much cooler and drier climate. For more details on January weather, visit Gao weather in January.
September and February present stark contrasts in weather conditions. In September, temperatures can soar to a maximum of 44°C (111°F), with an average of 33°C (92°F) and a considerable humidity level of 63%. This month sees minimal rainfall, with only about 13 mm (0.5 in) over three days. In contrast, February features much milder temperatures, peaking at 39°C (102°F) and averaging 26°C (79°F). The humidity drops significantly to just 12%, with virtually no precipitation, recording only 1 mm (0.0 in) and no rainy days. For more specific insights, you can explore details about Gao weather in February.
In September, the weather is characterized by significantly higher temperatures, with a minimum of 24°C (76°F) and an average of 33°C (92°F), culminating in maximums of 44°C (111°F). This month also sees a moderate level of precipitation, averaging 13 mm (0.5 in) over three days, accompanied by a humidity level of 63%. In contrast, March presents a much cooler climate with a minimum temperature of 11°C (51°F) and an average of 30°C (87°F), while still reaching up to 42°C (109°F) at its peak. Notably, March is exceptionally dry, with no recorded precipitation throughout the month and a low humidity of just 10%. For more detailed insights, check out Gao weather in March.
In September, the weather tends to be quite hot, with average temperatures reaching around 33°C (92°F) and maximums soaring up to 44°C (111°F). Although it is relatively humid at 63%, there is only minimal precipitation, averaging 13 mm over three days. In contrast, April showcases even higher maximum temperatures, peaking at 46°C (115°F), but with a lower average temperature of 34°C (93°F). The month is characterized by an impressively dry climate, with only 1 mm of precipitation and no rainy days, coupled with a significantly lower humidity level of 9%. For more detailed information, you can check out the Gao weather in April.
September and May exhibit notable differences in weather patterns. In September, temperatures range from a minimum of 24°C (76°F) to a scorching maximum of 44°C (111°F), with an average of 33°C (92°F). The month experiences some rainfall, totaling 13 mm (0.5 in) over about three days, along with a higher humidity level of 63%. In contrast, May boasts even hotter temperatures, with a minimum of 22°C (73°F) and a maximum reaching 46°C (115°F), averaging 36°C (97°F). Surprisingly, May is much drier, only recording 3 mm (0.1 in) of precipitation over no rainy days and maintaining lower humidity at 20%. For more detailed information, check out Gao weather in May.
In comparing the weather of September and June, both months showcase a warm climate, but with some distinct differences. September has a minimum temperature of 24°C (76°F) and an average of 33°C (92°F), while June slightly edges higher with a minimum of 25°C (77°F) and an average of 36°C (97°F). The peak temperatures also reflect this trend, with June reaching up to 45°C (114°F) compared to September's maximum of 44°C (111°F). Although both months experience relatively low precipitation, September sees a bit more rainfall at 13 mm (0.5 in) over 3 days, versus June's 10 mm (0.4 in) over just 2 days. Additionally, September's humidity is higher at 63%, compared to June's more comfortable 49%. For a more detailed look at June's weather, you can visit Gao weather in June.
In July, the weather in Gao is characterized by a minimum temperature of 24°C (75°F) and an average high of 44°C (112°F), with significant precipitation totaling 27 mm (1.1 in) over 7 days, contributing to a lower humidity of 53%. In contrast, September maintains similar minimum and average temperatures, but sees a reduced maximum of 44°C (111°F). Precipitation drops to 13 mm (0.5 in) across just 3 days, resulting in a higher humidity of 63%. Overall, September offers a drier and slightly more humid experience compared to the wetter conditions of July. For more details, you can check out Gao weather in July.
In comparing the weather of September to August, September emerges slightly warmer, with average temperatures reaching 33°C (92°F) and a maximum of 44°C (111°F), whereas August maintains an average of 31°C (88°F) and similarly peaks at 43°C (111°F). Additionally, September experiences significantly less rainfall, with only 13 mm (0.5 in) over 3 days, in contrast to August's 79 mm (3.1 in) spread across 11 days. Humidity levels are also a bit higher in September, at 63%, compared to August's 60%. For more detailed insights, check out Gao weather in August.
In September, temperatures in Gao range from a minimum of 24°C (76°F) to a scorching maximum of 44°C (111°F), with an average of 33°C (92°F). The month experiences about 13 mm (0.5 in) of precipitation over three days and a humidity level of 63%. In contrast, October sees slightly cooler conditions, with a minimum of 21°C (70°F) and a maximum of 43°C (110°F), maintaining the same average of 33°C (92°F). Precipitation drops significantly to just 2 mm (0.1 in) over zero days, resulting in a much lower humidity of 43%. For more detailed insights, you can check Gao weather in October.
In September, the weather is significantly warmer, featuring minimum temperatures around 24°C (76°F) and average highs reaching a scorching 33°C (92°F), with extremes peaking at 44°C (111°F). This month also experiences a bit of humidity, at 63%, and receives around 13 mm (0.5 in) of rainfall over three days. In contrast, November sees much cooler conditions, with minimums dropping to 14°C (57°F) and average temperatures of 29°C (85°F), although it can still reach up to 41°C (106°F). Remarkably, November experiences no rainfall at all, making it a drier month with only 17% humidity. For more detailed insights, you can check Gao weather in November.
September and December showcase contrasting weather patterns. In September, temperatures range from a minimum of 24°C (76°F) to a scorching maximum of 44°C (111°F), with an average of 33°C (92°F). This month sees a moderate level of precipitation, with 13 mm (0.5 in) falling over 3 days and humidity levels at 63%. In stark contrast, December experiences much cooler temperatures, from a minimum of 12°C (54°F) to a maximum of 38°C (101°F), averaging 25°C (78°F). Notably, December has no recorded precipitation, with humidity dropping to a mere 17%. For more detailed information, visit Gao weather in December.
As September unfolds in Gao, the weather marks a distinct transition, characterized by high temperatures that still linger but are generally more moderate than the peak of summer. With an average temperature around 33°C, the heat is tempered slightly, creating a more bearable climate, while occasional rains add a refreshing touch, with precipitation occurring on just a few days. This month's humidity levels sit at a comfortable 63%, setting it apart from the sweltering dry spells of earlier months. For a deeper dive into the weather intricacies of this unique climate, visit Gao Climate.