Last updated: August 31, 2025
September in Kigali, Rwanda features warm temperatures, with a maximum of 31°C (87°F) and an average of 21°C (70°F). The nights bring a refreshing chill, dipping to a minimum of 13°C (56°F). As the rainy season approaches, the city experiences around 67 mm (2.6 in) of precipitation over approximately 10 days, contributing to a humidity level of 70%. This month strikes a balance between warm days and cooler evenings, making it an ideal time for visitors to explore the vibrant culture and stunning landscapes of Kigali.
In September, Kigali enjoys a delightful balance in temperature, with minimums around 13°C (56°F) and averages reaching approximately 21°C (70°F), making it a pleasant time to explore the city. As the month progresses, daytime highs can soar to about 31°C (87°F), similar to the preceding month, reflecting a slight increase in warmth that signals the onset of the dry season. This consistency in temperatures showcases Kigali's mild climate throughout the year, with September embodying a charming fusion of comfortable warmth and refreshing coolness, ideal for both outdoor adventures and leisurely city strolls.
In September, Kigali experiences a notable increase in precipitation, with 67 mm (2.6 in) of rain falling over 10 days. This marks a shift from the drier months of June and July, where rainfall was minimal, to a more moderate wet season, setting the tone for the upcoming October and November showers. The rain in September supports the region's lush landscapes while also hinting at the intense downpours that typically follow in the next months, as seen in October's higher average of 129 mm (5.1 in). This gradual rise in precipitation not only rejuvenates the environment but also signifies a transitional period from the dryness of the late winter into the vibrant wet season of East Africa.
In September, Kigali experiences a notable dip in humidity, dropping to 70%, a refreshing change following the peak of the wet season. This month marks a transition as the city shifts from the drier August (66%) to a gradual increase in dampness leading into the wetter months of October (83%) and November (91%). Overall, the trend throughout the year reveals that humidity fluctuates significantly, with the highest levels typically occurring from May through December, underscoring Kigali's tropical climate. Thus, September’s moderate humidity provides a brief respite, making it an inviting time for outdoor activities before the heavier rains return.
September in Kigali, Rwanda, continues the trend of high UV exposure typical of the region, with a UV Index of 14, categorized as extreme. This means that residents and visitors alike should be vigilant, as the burn time remains a swift 10 minutes under direct sunlight. Following the preceding months of August's UV Index of 13 and the earlier peak readings in January through March, the consistency of these elevated UV levels highlights the importance of sun protection throughout the year. Understanding these trends is essential for staying safe and enjoying the vibrant outdoor lifestyle that Kigali offers. For more detailed information, visit Kigali UV Index.
UV Risk Categories
September in Kigali shines brightly with 320 hours of sunshine, continuing the city's trend of abundant sunlight as it transitions from the vibrant dry season into a slightly cooler climate. This month stands out, nestled between the peak sun hours of May at 334 hours and July, which offers 327 hours. Interestingly, September's sunshine closely follows August’s remarkable record of 328 hours, demonstrating a consistent pattern of warm and welcoming days. With daylight gradually receding as Kigali approaches the end of the year, the sun still bestows a generous amount of light, making this month an ideal time to bask in the city’s natural beauty and vibrant culture.
In Kigali, Rwanda, the likelihood of sunny weather in September is moderate, with a 25% chance of clear skies. This month marks a noticeable transition, following the sunny peaks of August at 45%, where the vibrant dry season is in full swing. As the year progresses, September's sunshine reverts closer to the earlier months, such as January and March, which also hover around a quarter probabilistic mark. Interestingly, while the chance of sunny weather dips slightly post-August, it remains significantly higher than the rainy months that follow. This trend indicates that while September does not guarantee extended sunny days, it still offers a pleasant respite before the onset of more overcast conditions in the subsequent months.
In Kigali, Rwanda, the daylight duration remains remarkably consistent throughout the year, with each month basking in approximately 12 hours of daylight. This balance creates a perpetual rhythm, where the sun reliably rises and sets, fostering a sense of stability in daily life. As September rolls in, residents and visitors alike experience this steady exposure to light, suitable for outdoor activities and cultural experiences. The unwavering 12-hour daylight pattern reflects Kigali's unique geographical position, contributing to its vibrant atmosphere and the lush landscapes that characterize this beautiful city. Embrace the golden hours of September and take advantage of the ample sunlight that graces this thriving capital.
As September arrives in Kigali, the city's breeze picks up pace, with an average wind speed of 1.7 m/s (4 mph), marking a subtle yet discernible increase from the summer months. This slight uptick reflects a trend of gradual intensification, as wind speeds have been on a steady rise since the start of the dry season in June. The transition from the cooler, calmer months of July and August to September’s refreshing winds creates a delightful atmosphere, drawing residents and visitors alike to embrace the outdoors. As the year progresses into October, the winds maintain their vigor, suggesting a sustained trend that brings a refreshing quality to Kigali's vibrant landscape.
Weather in Kigali varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kigali, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparison to January, September offers slightly warmer weather with average temperatures peaking at 21°C (70°F) and a maximum of 31°C (87°F), while January sees maximum temperatures of 30°C (86°F) and a similar average of 21°C (69°F). Both months experience mild minimum temperatures of around 13°C (56°F). However, September tends to be drier with 67 mm (2.6 in) of precipitation over approximately 10 days, while January has a higher total of 79 mm (3.1 in) spread over 14 days. Notably, January also brings increased humidity at 84% compared to 70% in September. For more details, you can check Kigali weather in January.
In September, the weather features a pleasant average temperature of 21°C (70°F), with daytime highs reaching up to 31°C (87°F). The month experiences about 67 mm (2.6 in) of precipitation over approximately 10 days, and the humidity stands at 70%. In contrast, February presents similar average temperatures at 21°C (69°F), but with slightly cooler maximum temperatures of 30°C (86°F). This month sees increased precipitation, totaling 87 mm (3.4 in) over 17 days, and a higher humidity level of 82%. Thus, while both months share a similar temperature range, February tends to be wetter and more humid. For more information, check out Kigali weather in February.
In comparing the weather of September and March, September generally offers milder temperatures with a minimum of 13°C (56°F) and an average of 21°C (70°F), peaking at a maximum of 31°C (87°F). The month experiences moderate precipitation of 67 mm (2.6 in) over about 10 days and maintains a humidity level of 70%. Meanwhile, March features slightly cooler temperatures, starting at a minimum of 12°C (54°F) and averaging around 20°C (69°F), with a maximum of 29°C (85°F). However, March is significantly wetter, boasting a total precipitation of 138 mm (5.4 in) spread over 23 days and a higher humidity at 78%. For a comprehensive overview, explore Kigali weather in March.
September and April present distinct contrasts in weather conditions. In September, the temperatures range from a minimum of 13°C (56°F) to a maximum of 31°C (87°F), with an average of 21°C (70°F). The month experiences moderate rainfall, totaling 67 mm (2.6 in) over about 10 days, and a humidity level of around 70%. In contrast, April sees slightly cooler temperatures, with a high of 28°C (83°F) and more frequent rainfall, accumulating to 173 mm (6.8 in) over 26 days, resulting in higher humidity at 81%. For those interested in more specifics about April's climate, you can check Kigali weather in April.
In comparing the weather of September and May, we see some notable differences. September typically features a wider range of temperatures, with averages around 21°C (70°F) and highs reaching up to 31°C (87°F), while May holds slightly cooler averages of 20°C (69°F) and a maximum of 28°C (82°F). When it comes to precipitation, September sees about 67 mm (2.6 in) over approximately 10 days, contrasting with May's higher precipitation levels of 112 mm (4.4 in) spread over 20 days, resulting in a considerably wetter month. Additionally, May experiences higher humidity at 87%, compared to September's 70%. For more detailed information, you can explore Kigali weather in May.
In comparing the weather of September and June, both months show similar average temperatures, hovering around 21°C (70°F), but September experiences a wider temperature range with maximums reaching 31°C (87°F) compared to June's max of 29°C (84°F). Rainfall differs significantly, with September receiving much more precipitation at 67 mm (2.6 in) over approximately 10 days, while June sees only 14 mm (0.5 in) of rain across just one day. Humidity levels are also notable: September has a humidity of 70%, while June's humidity is slightly higher at 78%. For more detailed insights, you can check out Kigali weather in June.
In comparing the weather of September and July, both months exhibit similar average temperatures, hovering around 21°C (70°F). However, September tends to be warmer, with maximum temperatures reaching 31°C (87°F), compared to July's peak of 29°C (85°F). Precipitation levels also differ significantly; September sees about 67 mm (2.6 in) of rain over approximately 10 days, while July remains dry with only 5 mm (0.2 in) of rain and no rainy days at all. Both months maintain consistent humidity levels at 70%, creating a similar feel in terms of moisture in the air. For more details on the weather specifics during July, you can visit Kigali weather in July.
In comparing the weather of August and September, we see some notable differences. Both months experience a similar temperature range, with August averaging a slightly warmer 22°C (71°F) compared to September's 21°C (70°F). However, September brings an increase in precipitation, with 67 mm (2.6 in) occurring over 10 days, in contrast to August's 41 mm (1.6 in) over just 6 days. Humidity is slightly higher in September at 70% versus August's 66%, contributing to a more muggy feeling in the air. For a more detailed look at August weather, you can visit Kigali weather in August.
In September, the weather typically features mild temperatures with a minimum of 13°C (56°F), an average of 21°C (70°F), and a maximum of 31°C (87°F). This month experiences a moderate level of precipitation at 67 mm (2.6 in), falling over about 10 days, with humidity around 70%. In contrast, October sees slightly cooler temperatures, with a minimum of 13°C (55°F), an average of 20°C (69°F), and a maximum of 29°C (85°F). However, it brings significantly more rainfall, totaling 129 mm (5.1 in) over 19 days, and higher humidity at 83%. For more details on the weather specifics, you can check Kigali weather in October.
In comparing the weather between September and November, we can observe some notable differences. September typically experiences warmer temperatures, with a minimum of 13°C (56°F) and a maximum of 31°C (87°F), averaging around 21°C (70°F). In contrast, November sees slightly cooler conditions, with minimum temperatures of 12°C (55°F) and maximums of 29°C (85°F), averaging 20°C (68°F). Additionally, November brings significantly more rainfall, with 128 mm (5.0 in) falling over 22 days, compared to September's 67 mm (2.6 in) across just 10 days. Humidity levels also rise in November, reaching 91% compared to September's 70%. For a detailed look at the weather in November, you can visit Kigali weather in November.
September and December showcase notable differences in weather patterns. In September, temperatures range from a minimum of 13°C (56°F) to a maximum of 31°C (87°F), with an average of 21°C (70°F). The month sees a total precipitation of 67 mm (2.6 in) across about 10 days, with humidity levels at 70%. Conversely, December tends to be cooler, with temperatures peaking at 28°C (83°F) and dropping to a minimum of 13°C (56°F), resulting in an average temperature of 20°C (69°F). Additionally, December is wetter, accumulating 104 mm (4.1 in) of rainfall over 19 days, and experiences higher humidity at 92%. For more detailed information on the December weather, check out Kigali weather in December.
As September unfolds in Kigali, residents and visitors alike experience a unique blend of warmth and mildness. With daytime temperatures reaching a comfortable 31°C (87°F) and cooler nights averaging around 21°C (70°F), this month strikes a balance between the heat of the dry season and the impending rains. While 70% humidity lingers in the air, September also brings a touch of moisture, evidenced by around 67 mm (2.6 in) of precipitation spread over 10 days. This makes for a refreshing transition from the cooler, drier months, ideal for outdoor adventures. For more insights into the nuances of Kigali's weather patterns, explore Kigali Climate.