Last updated: August 28, 2025
September in Mwanza, Tanzania brings a warm and inviting atmosphere, perfect for exploring the region's natural beauty. With maximum temperatures reaching around 28°C (84°F) and an average of 24°C (75°F), the days are comfortably warm, while evenings cool down to a pleasant 19°C (67°F). However, it’s important to note that this month also sees significant rainfall, accumulating to 120 mm (4.7 in) over about 17 days, contributing to a humidity level of 52%. Visitors should prepare for sporadic showers, which can offer a refreshing contrast to the warm temperatures. Overall, September is an intriguing month for those looking to experience Mwanza's vibrant landscape and local culture.
In September, Mwanza, Tanzania, enjoys a delightful blend of warmth and mildness, with temperatures typically ranging from a minimum of 19°C (67°F) to a maximum of 28°C (84°F). This month continues to reflect the consistent average of 24°C (75°F) that has been characteristic throughout the year. September marks a slight warming trend as it transitions to October, yet retains the comfortable feel experienced in the preceding months. With the temperatures staying stable, this period is ideal for outdoor activities, allowing visitors to explore the breathtaking landscapes without the swelter of excessive heat. This month beautifully encapsulates Mwanza’s temperate climate, inviting locals and tourists alike to enjoy its natural wonders.
In September, Mwanza experiences a notable shift in precipitation, marking a transition towards the wetter months. With 120 mm (4.7 in) of rain typically falling over 17 days, the city begins to pave the way for the impending rainy season. This amount represents a sustained increase compared to the drier months of July and June, where rainfall dipped significantly. As the year progresses into October and November, precipitation levels soar, peaking with October boasting a staggering 214 mm (8.4 in). September’s rainfall, while substantial, hints at the dramatic weather changes that lie just ahead, setting a rhythm that reflects the region's characteristic climate pattern.
In Mwanza, Tanzania, September marks a transition to slightly higher humidity levels, averaging around 52%. This change follows a noticeable decrease in the preceding months, where humidity dipped to its lowest point in August at 50%. As the dry winter months of June and July give way to September, the air starts to feel a bit more humid, setting the stage for the upcoming rainy season. The trend of gradually increasing humidity continues into October, reaching 67%, while the following months see a significant surge, with November and December experiencing much higher levels at 86% and 87% respectively. This cyclical pattern highlights Mwanza's unique climatic rhythm, where the crispness of winter transitions into the rich humidity of the year's end.
In September, Mwanza, Tanzania, registers a UV Index of 14, reflecting the extreme exposure category that dominates much of the year. This month continues the trend seen from earlier in the year, where consistently high UV levels have defined the landscape of January through August. With a notable UV Index peaking at 16 in March, the slight drop to 14 in September indicates only a minor reprieve from the relentless sun. The burn time remains critically short at just 10 minutes, emphasizing the need for visitors and locals alike to protect their skin. As the year transitions into the cooler months, there's little variation in UV intensity, with October and beyond sustaining similarly intense levels. For those planning outdoor activities, it's essential to stay informed about the UV conditions year-round. For more details, visit the Mwanza UV Index.
UV Risk Categories
As September unfolds in Mwanza, Tanzania, the city continues to bask in a generous portion of sunshine, totaling 334 hours of daylight. This marks a slight dip from the sun-drenched days of July and August, which each boasted over 340 hours of glorious light. The gradual transition from the bright heights of mid-year showcases a remarkable consistency in sunshine throughout the month, reinforcing Mwanza's status as a bright spot on the Tanzanian map. Following the sunny September, the days in October promise a rejuvenating warmth, as the city maintains its characteristic brilliance, ensuring that the vibrant life and culture of Mwanza remain illuminated and lively.
In Mwanza, Tanzania, September sees a 34% chance of sunny weather, which places it in the mid-range compared to the year-round data. As the dry season peaks through August with a 55% likelihood of sunshine, September holds onto a reasonable chance of clear skies, indicating that the transition into the wetter months is gradual. This trend highlights that while the sunny days may diminish as Tanzania approaches October and November, September still offers a pleasant opportunity for outdoor activities, retaining the warmth and vibrant atmosphere typical of the region's drier months.
In Mwanza, Tanzania, September enjoys a delightful 12 hours of daylight, maintaining a consistent trend that begins in March and extends through November. This steadiness fosters a sense of balance in the region's climate, creating an inviting atmosphere for both residents and visitors alike. As the year progresses, daylight duration dips to 11 hours from May to July, but quickly returns to a robust 12-hour span in late summer and early autumn. This repetitive cycle not only enhances the natural beauty of Mwanza but also supports various outdoor activities, allowing everyone to fully embrace the vibrant charm of the city throughout the year.
As September arrives in Mwanza, Tanzania, the winds gently whisper of transition, with an average wind speed of 3.2 m/s (7 mph). Following the peak breezes of July, which saw winds gusting up to 4.8 m/s (11 mph), September reflects a slight softening as it falls into a seasonal lull. The winds, once invigorating, now take on a more moderate pace, creating a soothing balance that heralds the onset of the dry season. This month finds itself nestled between the lively breezes of winter and the calmer days of early spring, making it a perfect time for outdoor activities amid the waking landscape of Mwanza. The gradual shift not only signifies changing weather patterns but also invites residents and visitors alike to enjoy the tranquil beauty of the surroundings while the gentle winds carry whispers of upcoming adventures.
Weather in Mwanza varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mwanza, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather in Mwanza features warm temperatures with a minimum of 19°C (67°F), an average of 24°C (75°F), and a maximum of 28°C (84°F). The month experiences significant rainfall, totaling 120 mm (4.7 in) over 17 days, contributing to a moderate humidity level of 52%. In contrast, January shares similar temperature averages, with a minimum of 19°C (66°F), an average of 24°C (75°F), and a maximum of 28°C (83°F). However, January sees slightly less precipitation at 116 mm (4.6 in) over the same number of days, and notably higher humidity at 80%. For a detailed overview, you can check out Mwanza weather in January.
September and February in Mwanza exhibit some similarities in temperature, with both months featuring minimums around 19°C (67°F) and average temperatures hovering around 24°C (75°F). However, February edges slightly warmer with a maximum of 29°C (85°F) compared to September's maximum of 28°C (84°F). Precipitation is relatively close as well, with September receiving 120 mm (4.7 in) over 17 days, while February sees slightly less at 111 mm (4.4 in) across 14 days. Notably, February experiences higher humidity at 77%, compared to September’s 52%, making the latter feel more comfortable. For more detailed insights, you can check out Mwanza weather in February.
In comparing the weather of September and March, both months enjoy similar average temperatures, hovering around 24°C (75°F). However, September generally features slightly milder conditions, with minimum temperatures of 19°C (67°F), while March starts off just a bit warmer at 20°C (68°F). Rainfall is more prevalent in March, with a total of 156 mm (6.1 in) over 20 days compared to September's 120 mm (4.7 in) over 17 days, leading to a noticeable increase in humidity from 52% in September to 70% in March. For a detailed look at March weather patterns, you can check out Mwanza weather in March.
September and April display notable differences in weather patterns. Both months share a minimum temperature of 19°C (67°F), but September typically boasts an average of 24°C (75°F) and a maximum of 28°C (84°F), while April has a slightly lower average of 23°C (75°F) and a higher maximum of 29°C (85°F). Precipitation levels are significantly higher in April, with 206 mm (8.1 in) falling over 20 days compared to September’s 120 mm (4.7 in) over 17 days. Additionally, April experiences a higher humidity level at 70%, compared to September's 52%. For more detailed information, you can visit Mwanza weather in April.
In comparing the weather of September and May, both months exhibit similar average temperatures, with highs reaching around 28°C (83-84°F) and lows at approximately 19°C (66-67°F). However, September tends to be wetter, receiving about 120 mm (4.7 in) of precipitation over 17 days, while May has a milder rainfall of 70 mm (2.8 in) over just 12 days. Additionally, May experiences higher humidity at 72%, compared to September’s 52%, contributing to a more oppressive feel during that month. For more specific details on May weather conditions, you can visit Mwanza weather in May.
When comparing the weather in September and June, both months feature a similar minimum temperature of around 19°C (67°F) and an average of 24°C (75°F). However, June tends to be slightly warmer with a maximum temperature reaching 29°C (84°F), compared to September's peak of 28°C (84°F). Notably, September experiences significantly higher precipitation at 120 mm (4.7 in) over 17 days, while June is much drier with only 23 mm (0.9 in) of rain falling over just 4 days. Additionally, humidity levels are higher in June at 61%, compared to September’s 52%. For more detailed information about June weather, you can visit Mwanza weather in June.
In comparing the weather of September and July, September tends to be warmer, with average temperatures reaching 24°C (75°F) compared to July's 23°C (74°F). Both months experience similar maximum temperatures of 28°C (84°F in September and 82°F in July), but September has a notably higher precipitation level of 120 mm (4.7 in) over 17 days, while July is much drier, receiving only 18 mm (0.7 in) over just 2 days. Humidity levels are slightly higher in July at 56% compared to September's 52%. For a more in-depth look at the weather patterns during July, visit Mwanza weather in July.
In September, the weather becomes slightly warmer compared to August, with an average temperature rising to 24°C (75°F) from August's 23°C (74°F). Both months experience similar maximum temperatures of 28°C (84°F), but September has a higher minimum temperature of 19°C (67°F) compared to August's 18°C (65°F). Precipitation also increases significantly in September, totaling 120 mm (4.7 in) over 17 days, whereas August sees only 69 mm (2.7 in) across 10 days. Humidity remains relatively stable, with September at 52% and August at 50%. For more detailed insights, you can check Mwanza weather in August.
In September, the weather features a warm average temperature of 24°C (75°F), with daily highs reaching up to 28°C (84°F). However, the month also sees a considerable amount of rainfall, with 120 mm (4.7 in) falling over 17 days. Humidity is relatively moderate at 52%.
October brings a slight decrease in average temperature to 23°C (74°F), but daily highs can still reach 29°C (84°F). Precipitation increases significantly, totaling 214 mm (8.4 in) over 24 days, while humidity rises to 67%. For more details on October weather in Mwanza, check out Mwanza weather in October.
September and November weather in Mwanza exhibit notable differences despite their similar temperature ranges. In September, the temperatures typically range from a minimum of 19°C (67°F) to a maximum of 28°C (84°F), with an average of 24°C (75°F). The month experiences a total of 120 mm (4.7 in) of precipitation spread over 17 days, and the humidity sits at a comfortable 52%. In contrast, November sees slightly higher temperatures, with a minimum of 20°C (67°F) and an average of 23°C (74°F), but it also experiences increased rainfall, totaling 252 mm (9.9 in) over 25 days, accompanied by significantly higher humidity at 86%. For a more detailed look at Mwanza weather during November, you can visit Mwanza weather in November.
In September, the weather in Mwanza is warm with average temperatures around 24°C (75°F), experiencing minimal rainfall of 120 mm (4.7 in) over 17 days and a moderate humidity level of 52%. In contrast, December sees slightly cooler average temperatures of 23°C (74°F), but a significant increase in precipitation at 219 mm (8.6 in) spread across 27 days, resulting in higher humidity levels at 87%. This shift not only highlights the transition from a drier September to a wetter December but also emphasizes the increased moisture in the air during the latter month. For more details, check out Mwanza weather in December.
As September arrives in Mwanza, a noticeable shift in weather patterns emerges. The temperatures remain mild, hovering around 24°C on average, providing a comfortable backdrop for both locals and visitors. Unlike the preceding months, September is characterized by a significant increase in precipitation, with rain gracing the region for about 17 days, leading to a more varied landscape. The humidity levels, while moderate, contribute to a unique blend of warmth and moisture not often felt during the drier months. This transitional weather makes September an intriguing time to experience the vibrant life of Mwanza. For a deeper dive into these climatic trends, check out Mwanza Climate.