Last updated: August 21, 2025
In September, Kitakyushu, Japan, experiences a dynamic climate characterized by a maximum temperature peaking at 35°C (95°F), while the average hovers around a comfortable 25°C (77°F). With a minimum temperature of 15°C (59°F), the weather allows for pleasant variations throughout the day. However, this month also brings considerable precipitation, averaging 202 mm (8.0 in) over 15 days, contributing to a humidity level of 84%. Visitors should be prepared for occasional rain while enjoying the warm and vibrant atmosphere of early autumn in this bustling city.
In September, Kitakyushu experiences a warm transition into autumn, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 35°C (95°F). The average temperature of 25°C (77°F) reflects a comfortable warmth, making it one of the last months of summer-like weather before cooler temperatures set in. As the month progresses, the city begins to shed the intense heat of August, which boasts maximums nearing 40°C (100°F). This gradual dip in temperature signals a shift towards the crispness of fall, inviting outdoor activities amid pleasantly warm afternoons and cooler evenings. This blend of late summer warmth and early autumn cool makes September a delightful time to explore the vibrant landscapes of Kitakyushu.
September marks a significant transition in Kitakyushu, Japan, where the average precipitation reaches 202 mm (8.0 in) over approximately 15 days of rainfall. This is a notable decrease from the deluge of July, which recorded 298 mm (11.7 in), yet still maintains a robust level of moisture compared to the earlier months of the year. Following the summer months, September’s rainfall contributes to the lush landscapes characteristic of the region, reflecting the lingering influence of the monsoon season. This month serves as a bridge between the humid summer and the drier autumn, as October follows with a sharp drop in precipitation to 110 mm (4.3 in), underscoring a clear seasonal shift. Overall, the data illustrates a pattern where rainfall begins to taper off after a peak in late summer, transitioning the community into a more temperate climate.
In September, Kitakyushu experiences a notable decrease in humidity, with levels around 84%, a refreshing dip from the muggy heights of 92% in July and 91% in August. This decline marks a transition from the sweltering summer months, where humidity peaks, to the more comfortable fall season. As autumn approaches, the humidity levels gradually decrease, hovering around the 80% mark in October and November. This trend underscores Kitakyushu's shift from sticky summer air to a much more pleasant environment, inviting residents and visitors to enjoy the beauty of the changing season.
In September, Kitakyushu experiences a notable trend in its UV Index, maintaining a high level of 11, which classifies it as extreme. This signals a period where sun exposure is particularly intense, with a burn time of just 10 minutes for fair-skinned individuals. Following the peak summer months of July and August, which both recorded a UV Index of 12, September still demands vigilance, as the sun’s rays remain formidable. The month marks a transition as it approaches the cooler season, yet sun safety remains paramount for residents and visitors alike. For more detailed information on UV levels throughout the year, visit Kitakyushu UV Index.
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As summer gracefully transitions into autumn, September in Kitakyushu brings a delightful balance of sunshine and warmth. With 251 hours of sunlight, the month showcases a notable decrease from the sun-drenched days of August, which boasted an impressive 301 hours. However, September still enjoys ample daylight, contributing to a vibrant atmosphere as the city prepares for the cooler months ahead. This gradual decline in sunshine hours from the peak summer months indicates the onset of autumn, while the milder temperatures and beautiful landscapes make it a favorite time for outdoor activities and enjoying the fading warmth before winter sets in.
In Kitakyushu, Japan, the likelihood of sunny weather experiences a noticeable decline during the summer months, peaking at a modest 30% in September. As the city transitions from the intense heat of July and August, where the chances of sunshine dip to around 22% and 26% respectively, September offers a slight reprieve but remains less favorable compared to earlier spring months. The sun's presence becomes more consistent again in the fall, with October revealing a significant jump to 58%. This trend highlights September's position as a transitional month, bridging the lower summer sunshine with the more favorable, sun-filled days of autumn.
In Kitakyushu, Japan, the rhythm of daylight undergoes a captivating transformation as the seasons shift. September brings a gentle decline in daylight hours, offering 12 hours of illumination—a noticeable decrease from the summer peak of 14 hours in June and July. This transition reflects the gradual retreat of long summer days, leading us into the cooler months. As autumn approaches, the daylight diminishes further into October, signaling the onset of shorter days ahead, where light begins to play a less dominant role in the daily cycle. This rhythmic ebb and flow of daylight not only marks the changing seasons but also invites residents and visitors alike to embrace the beauty of each phase in Kitakyushu's enchanting year.
As summer transitions to autumn in Kitakyushu, Japan, the September wind ushers in a subtle shift in the air. With an average wind speed of 2.8 m/s (6 mph), September's breezes are gentle, reflecting a trend of decreasing wind speeds from the summer months. This slight decline follows a seasonal pattern, where the spring and early summer months tend to enjoy more robust winds, peaking in July at 3.1 m/s (7 mph). As August fades, the winds start to calm, setting the stage for the softer, cooler air of fall. This gradual decrease continues into October, hinting at the tranquil days ahead, where the winds typically settle around 2.5 m/s (6 mph). September's winds, though modest, carry hints of the changing season, inviting residents to savor the fleeting warmth before embracing the crisp air of autumn.
Weather in Kitakyushu varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kitakyushu, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. September boasts a warm average temperature of 25°C (77°F) with highs reaching up to 35°C (95°F), accompanied by high humidity at 84% and significant rainfall of 202 mm (8.0 in) over 15 days. In contrast, January experiences much cooler temperatures, with an average of only 6°C (44°F) and maximums of 17°C (63°F). January's precipitation is considerably lower, at 53 mm (2.1 in) over just 8 days, and the humidity drops to 75%. For more details, check out Kitakyushu weather in January.
September and February present contrasting weather conditions. In September, temperatures are much warmer, ranging from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), with an average of 25°C (77°F). This month is characterized by significant rainfall, accumulating 202 mm (8.0 in) over 15 days, and high humidity at 84%. In stark contrast, February experiences much cooler temperatures, with a minimum of -4°C (26°F) and a maximum of 23°C (73°F), averaging around 7°C (45°F). Precipitation is lighter in February, totaling 68 mm (2.7 in) over just 8 days, accompanied by lower humidity at 71%. For more detailed insights about the weather in February, you can check Kitakyushu weather in February.
In September, the weather is warm and humid, with average temperatures ranging from a comfortable 25°C (77°F) to a high of 35°C (95°F), accompanied by significant rainfall totaling 202 mm (8.0 in) over 15 days. In contrast, March experiences much cooler temperatures, with averages around 11°C (53°F) and a maximum of 24°C (75°F), along with less precipitation at 118 mm (4.7 in) over 11 days. The humidity also drops to 71% in March, providing a fresher feel compared to the muggy September climate. For more detailed insights into the weather during March, you can visit Kitakyushu weather in March.
September and April present contrasting weather patterns. September typically has much warmer temperatures, ranging from a minimum of 15°C (59°F) to a high of 35°C (95°F), averaging around 25°C (77°F). In contrast, April is cooler, with temperatures ranging from a low of 4°C (39°F) to a high of 27°C (81°F), averaging 16°C (60°F). Additionally, September experiences higher precipitation, totaling 202 mm (8.0 in) over 15 days, compared to April's 109 mm (4.3 in) over just 9 days. Humidity levels are also greater in September at 84%, while April maintains a lower humidity of 78%. For a more detailed look at spring conditions, check out Kitakyushu weather in April.
September and May present contrasting weather profiles. In September, temperatures range from a minimum of 15°C (59°F) to a scorching maximum of 35°C (95°F), with an average temperature of 25°C (77°F). This month is also characterized by substantial precipitation, totaling 202 mm (8.0 in) across about 15 days, all while maintaining a high humidity level of 84%. In contrast, May offers cooler conditions with a minimum temperature of 7°C (46°F) and a maximum of 32°C (89°F), averaging at 20°C (69°F). Precipitation in May is lower at 135 mm (5.3 in) over 10 days, yet it also features a humidity level of 84%. For a more detailed look at the weather, check Kitakyushu weather in May.
In September, the weather tends to be warmer compared to June, with average temperatures reaching 25°C (77°F) as opposed to June's 23°C (74°F). While both months experience similar minimum temperatures of around 15°C, September can peak at a hotter 35°C (95°F), exceeding June’s maximum of 33°C (91°F). Additionally, September sees slightly more rainfall, accumulating 202 mm (8.0 in) over about 15 days, compared to June's 180 mm (7.1 in) over 13 days. Humidity remains relatively high in both months, with September at 84% and June at 86%. For a closer look at June's weather specifics, visit Kitakyushu weather in June.
When comparing the weather in September and July, notable differences emerge. July tends to be slightly warmer, with average temperatures around 27°C (81°F) compared to September's 25°C (77°F). Both months experience significant heat, but July's maximum temperature can reach 36°C (97°F), whereas September peaks at 35°C (95°F). However, September receives more rainfall overall, with 202 mm (8.0 in) across 15 days, while July sees a higher total of 298 mm (11.7 in) over 18 days. Humidity levels are also higher in July at 92%, compared to September's 84%. For more detailed insights on July’s weather, visit Kitakyushu weather in July.
September experiences slightly cooler temperatures compared to August, with minimums of 15°C (59°F) and an average of 25°C (77°F), while August's temperatures range from a minimum of 20°C (68°F) to an average of 29°C (84°F). The maximum temperatures in August peak at 38°C (100°F), compared to September's maximum of 35°C (95°F). Additionally, while September sees 202 mm (8.0 in) of precipitation over 15 days, August has a higher rainfall total of 255 mm (10.0 in) over a similar number of days, making it the wetter month. Humidity levels are also elevated in both months, with August reaching 91% compared to September's 84%. For more details, check out Kitakyushu weather in August.
September weather is characterized by higher temperatures, with minimums around 15°C (59°F) and average highs reaching up to 35°C (95°F). The month also experiences significant rainfall, totaling 202 mm (8.0 in) over approximately 15 days, and humidity levels remain high at 84%. In contrast, October brings cooler conditions, with minimum temperatures dropping to 9°C (49°F) and an average of 20°C (68°F). Rainfall decreases to 110 mm (4.3 in) over around 10 days, and humidity is slightly lower at 83%. For more details, you can check Kitakyushu weather in October.
September's weather is characterized by warm temperatures, with an average high of 35°C (95°F) and substantial humidity at 84%. It experiences quite a bit of rainfall, totaling 202 mm (8.0 in) over 15 days, making it one of the wetter months of the year. In contrast, November brings much cooler conditions, with average temperatures ranging from a minimum of 2°C (35°F) to a maximum of 26°C (80°F) and a lower average of 14°C (57°F). Precipitation is significantly reduced to 43 mm (1.7 in) over just 6 days, and humidity slightly decreases to 81%. For a more detailed view of November's weather specifics, visit Kitakyushu weather in November.
In September, the weather is notably warmer with average temperatures around 25°C (77°F), peaking at a hot 35°C (95°F). The month experiences significant rainfall, with 202 mm (8.0 in) spread over 15 days, contributing to a high humidity level of 84%. In contrast, December brings a stark change, featuring much cooler temperatures with an average of 8°C (47°F) and a maximum of 23°C (73°F). Precipitation is significantly lower at 59 mm (2.3 in) over just 7 days, and humidity decreases slightly to 79%. For a deeper insight into December's weather, you can check Kitakyushu weather in December.
As September rolls into Kitakyushu, the weather begins to show signs of transition from the sweltering summer heat to the cooler autumn days. While temperatures can still reach a maximum of 35°C (95°F), the average drops to a more comfortable 25°C (77°F), providing a refreshing shift. However, the month also brings an increase in humidity and precipitation, with rain falling on about half of the days. This distinctive blend of warmth and moisture sets September apart from the less humid summer months, making it a unique time to experience the city's vibrant atmosphere. For further insights into what to expect throughout the year, visit Kitakyushu Climate.