Last updated: August 21, 2025
September in Kawasaki, Japan, presents a warm and humid atmosphere, with maximum temperatures reaching up to 32°C (90°F) and an average of 24°C (76°F). The minimum temperature can dip to 16°C (60°F), offering a pleasant range for outdoor activities. However, the month is marked by significant precipitation, totaling 187 mm (7.4 in) over approximately 16 days, contributing to the region’s lush landscapes. With humidity levels soaring to 86%, September embodies the essence of late summer, blending heat with the early whispers of autumn.
As September unfolds in Kawasaki, Japan, the city experiences a delightful transition from the sweltering summer months to the more temperate autumn climate. The average temperature reaches a comfortable 24°C (76°F), while daily temperatures range from a refreshing 16°C (60°F) at night to a warm 32°C (90°F) during the day. This month marks a notable decrease from the peak summer heat, allowing residents and visitors to enjoy outdoor activities in pleasant conditions. The gradual cooling trend is evident as September sets the stage for October's crisp breeze, making it a perfect time to savor the changing season in this vibrant city.
In September, Kawasaki experiences a notable shift in its weather patterns, highlighted by a significant precipitation total of 187 mm (7.4 in) over 16 rainy days. This spike marks the tail end of the summer monsoon season, illustrating a trend where rainfall begins to decline as the cooler autumn months approach. After a relatively moderate August with 104 mm (4.1 in), September showcases a dramatic increase, indicating a transition into a wetter period that foreshadows October’s even heavier downpours, which average 266 mm (10.5 in). This seasonal rhythm underscores Kawasaki's role as a gateway to Japan's shifting climate, where the balance between hydration and dryness is continually in flux.
As summer transitions to autumn in Kawasaki, Japan, September witnesses a notable decline in humidity, averaging around 86%. This marks a slight decrease from the stifling humidity levels of the peak summer months, where July and August soared to 93% and 90% respectively. The overall trend reveals a gradual shift from higher humidity in the early summer to a more comfortable range as the year progresses. While September remains relatively humid compared to other months, the drop hints at the approaching cooler temperatures of fall, setting the stage for a refreshing change in the climate. As the year advances, the humidity continues to decrease, culminating in more pleasant conditions by October.
As summer transitions into autumn, September in Kawasaki, Japan, features a UV Index of 10, placing it in the very high exposure category with a burn time of just 15 minutes. This slight dip from the summer's consistent extreme levels suggests that while the sun's intensity remains significant, there is a minor easing as the days shorten. Travelers and locals alike should remain vigilant, as September still demands quick protective measures against potential sunburn. Observing the trend, the UV Index peaks during the summer months, indicating a gradual decrease into fall, yet it remains crucial to consider sun safety throughout the entire season. For more detailed insights, visit Kawasaki UV Index.
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As September settles over Kawasaki, the city basks in the gentle warmth of 235 sunshine hours, marking a slight dip from the summer peak of August. This slight decrease, however, doesn’t diminish the charm of autumn’s arrival, as the comforting rays continue to illuminate the vibrant landscapes. Following a lively June and July, which boasted impressive totals of 262 and 234 hours respectively, September maintains a steady brightness. The trend further indicates a slow transition into the cooler months, as the year averages around 231 hours in the subsequent months. Embracing this balance, Kawasaki enjoys a harmonious blend of sunlight, offering both residents and visitors a beautiful backdrop to welcome the fall season.
In Kawasaki, Japan, the likelihood of sunny weather in September is relatively low, with a mere 28% chance of sunshine. This is indicative of a noticeable trend as the summer months transition into autumn, where the probability of sunny days declines. Interestingly, following a peak in sun chances during the winter and early spring months—reaching up to 66% in February—September's forecast reflects a significant drop, suggesting that residents may want to prepare for more overcast days than the bright, sunlit skies enjoyed earlier in the year. As the year progresses into October, the chance of sunshine rises again to 50%, hinting at a brief resurgence of sunny weather as the season shifts.
As summer yields to autumn in Kawasaki, Japan, September sees a notable transition in daylight duration, with the sun gracing the skies for 12 hours. This marks a slight decline from the peak of 14 hours experienced in the summer months, reflecting the gradual shift from long sunny days to shorter fall afternoons. The daylight begins to wane, reminiscent of the steady decrease that occurs from May through to December, where hours of sunlight gently taper off to just 9 hours by year-end. Despite this reduction, September maintains a balance, offering a warm farewell to summer while paving the way for the cozy embrace of autumn.
In Kawasaki, Japan, the September winds herald a subtle transition from the summer warmth as average wind speeds register at 4.4 m/s (10 mph). Interestingly, this marks a slight increase from the languid breezes of July and August, which were characterized by their lower velocities of 3.2 m/s (7 mph) and 4.8 m/s (11 mph), respectively. As the air begins to cool with the impending autumn, September's winds remain relatively invigorating, promoting a refreshing atmosphere that gently nudges the city towards the upcoming seasonal changes. The wind patterns in Kawasaki show a gradual oscillation throughout the year, peaking in May at 5.3 m/s (12 mph), and trailing down in the summer months before picking up again in the fall. Thus, September's breezy embrace is a teaser of the crisp conditions to come, effectively bridging the warmth of summer and the chill of autumn.
Weather in Kawasaki varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kawasaki, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. September boasts a warm climate with temperatures ranging from a minimum of 16°C (60°F) to a peak of 32°C (90°F), accompanied by high humidity levels at 86% and substantial rainfall of 187 mm (7.4 in) over 16 days. In contrast, January experiences much cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 18°C (65°F), along with significantly less precipitation at 52 mm (2.1 in) spread over just 4 days. The humidity in January is lower, at 76%, providing a crisper feel. For more insights, you can check out Kawasaki weather in January.
September weather is characterized by a warm climate, with temperatures ranging from a low of 16°C (60°F) to a high of 32°C (90°F), averaging around 24°C (76°F). This month also sees significant rainfall, with 187 mm (7.4 in) of precipitation spread over 16 days and humidity levels reaching 86%. In contrast, February brings much cooler temperatures, with a minimum of 0°C (31°F) and a maximum of 18°C (66°F), averaging only 7°C (45°F). Precipitation during this month is considerably lighter, totaling 43 mm (1.7 in) across just 7 days, and humidity is lower at 74%. For more detailed information, you can check Kawasaki weather in February.
In September, the weather is typically warm and humid, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 32°C (90°F), and an average of 24°C (76°F). This month experiences considerable rainfall, with about 187 mm (7.4 in) over 16 days, leading to a high humidity level of 86%. In contrast, March brings a much cooler climate, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 20°C (69°F) and an average of 11°C (52°F). The precipitation in March is relatively lower, at 138 mm (5.4 in) over 12 days, and humidity drops to 70%. For more details on March weather specifically, you can visit Kawasaki weather in March.
September and April exhibit contrasting weather patterns that highlight the transitions of seasonal change. In September, temperatures range from a minimum of 16°C (60°F) to a maximum of 32°C (90°F), averaging around 24°C (76°F), making it considerably warmer than April. In contrast, April experiences cooler temperatures, with a range from 4°C (40°F) to 23°C (74°F) and an average of 15°C (58°F). Additionally, September is marked by higher humidity levels at 86% and more precipitation, totaling 187 mm (7.4 in) over 16 days, compared to April’s 116 mm (4.6 in) over just 10 days. For more detailed insights into the weather during this month, visit Kawasaki weather in April.
September and May showcase distinct weather patterns, reflecting the transition between summer and autumn. In September, temperatures range from a minimum of 16°C (60°F) to a maximum of 32°C (90°F), with an average of 24°C (76°F), making it noticeably warmer than May, which sees temperatures from 11°C (52°F) to 27°C (80°F) and an average of 19°C (67°F). Precipitation is more abundant in September, with 187 mm (7.4 in) over 16 days compared to May's 118 mm (4.6 in) over 11 days. Additionally, the humidity in September is higher at 86%, while May maintains a slightly lower humidity level of 81%. For more detailed information on May weather, visit Kawasaki weather in May.
September and June exhibit noteworthy differences in weather patterns. September tends to be warmer with average temperatures peaking at 24°C (76°F) compared to June's average of 22°C (72°F). While both months have a minimum temperature around 16°C (60°F), September experiences higher maximum temperatures, reaching up to 32°C (90°F), compared to June's 29°C (85°F). Precipitation levels are relatively similar, with September receiving 187 mm (7.4 in) over 16 days and June 161 mm (6.3 in) over 13 days. Humidity is slightly lower in June at 88% compared to September's 86%. For more specific insights, you can check Kawasaki weather in June.
In comparing the weather between September and July, September tends to be slightly cooler, with average temperatures ranging from a minimum of 16°C (60°F) to a maximum of 32°C (90°F), compared to July's warmer range of 19°C (66°F) to 35°C (95°F). Both months experience a similar number of rainy days, around 16, but July sees a higher total precipitation of 209 mm (8.2 in) versus September's 187 mm (7.4 in). Humidity levels are also higher in July at 93%, compared to 86% in September, making July feel more oppressive. For more detailed information on the weather during July, you can check Kawasaki weather in July.
In comparing the weather of September and August, September experiences cooler temperatures with a minimum of 16°C (60°F) and an average of 24°C (76°F), while August maintains warmer conditions with a minimum of 20°C (68°F) and an average of 28°C (82°F). The maximum temperatures also differ, reaching 32°C (90°F) in September compared to 34°C (93°F) in August. Additionally, September sees higher precipitation, with 187 mm (7.4 in) over 16 days, compared to August's 104 mm (4.1 in) across 12 days. Humidity levels are slightly lower in September at 86%, while August remains more humid at 90%. For more detailed insights on the weather during August, you can check Kawasaki weather in August.
September and October present contrasting weather patterns, with September generally warmer and more humid. In September, temperatures range from a minimum of 16°C (60°F) to a maximum of 32°C (90°F), averaging around 24°C (76°F). The month experiences substantial rainfall, totaling 187 mm (7.4 in) over 16 days, accompanied by high humidity levels at 86%. In contrast, October brings cooler temperatures, with minimums dropping to 11°C (52°F) and maximums reaching 28°C (83°F), while the average temperature settles at 19°C (67°F). October also sees increased precipitation, totaling 266 mm (10.5 in) over the same number of days, but with slightly lower humidity at 83%. For more detailed weather information, check out Kawasaki weather in October.
September and November present contrasting weather patterns. In September, temperatures range significantly, with a minimum of 16°C (60°F) and reaching a maximum of 32°C (90°F), resulting in a warm average of 24°C (76°F). This month is also marked by higher humidity at 86% and substantial rainfall, with 187 mm (7.4 in) over approximately 16 days. In contrast, November experiences much cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 23°C (73°F), leading to a lower average of 14°C (58°F). The month sees a reduction in precipitation to 87 mm (3.4 in) across 11 days and a slight drop in humidity to 80%. For more detailed information on the weather in November, visit Kawasaki weather in November.
September weather typically features warmer temperatures, with a minimum of 16°C (60°F) and an average of 24°C (76°F), peaking at a high of 32°C (90°F). This month also sees significant rainfall, averaging 187 mm (7.4 in) over approximately 16 days, and high humidity levels at 86%. In contrast, December brings much cooler conditions, with temperatures ranging from a low of 0°C (33°F) to a comfortable maximum of 21°C (70°F) and an average of just 9°C (49°F). Precipitation decreases substantially to 64 mm (2.5 in) over about 7 days, accompanied by a drop in humidity to 78%. For more information about the weather in December, check out Kawasaki weather in December.
As September unfolds in Kawasaki, it brings a noticeable shift in weather patterns compared to the summer months. With warmer temperatures averaging around 24°C, this time of year feels more comfortable, though that isn't without the possibility of occasional heat spikes. The substantial average precipitation of 187 mm over 16 days indicates a transition toward a wetter season, marking a contrast to the drier days of summer. Coupled with high humidity at 86%, it creates a unique atmosphere that prepares residents for the approaching fall. For more detailed insights into Kawasaki's weather throughout the year, check out Kawasaki Climate.