Last updated: August 21, 2025
In September, Takamatsu, Japan experiences a transition as summer yields to autumn, showcasing a diverse weather profile. With maximum temperatures reaching a sweltering 34°C (93°F) and an average temperature of 24°C (76°F), the month remains warm, though nights can cool down to a refreshing 16°C (62°F). Rainfall is prominent, contributing to a total precipitation amount of 195 mm (7.7 in) over 13 days, helping to maintain the high humidity levels, which hover around 87%. This dynamic blend of warmth and moisture paints a vivid picture of Takamatsu's September climate, making it both vibrant and ripe for exploration.
In September, Takamatsu experiences a delightful transition as summer wanes, with temperatures showing a marked shift. The minimum temperature rises to 16°C (62°F), while the average settles comfortably at 24°C (76°F), setting the stage for warm, pleasant days. Notably, daytime highs can reach a sweltering 34°C (93°F), reminiscent of the intense heat from August. As the month unfolds, the combination of lingering warmth and cooler evenings creates an inviting climate perfect for outdoor exploration. This trend of gradually cooling temperatures foreshadows the upcoming autumn, while still allowing residents and visitors to enjoy the tail end of summer's warmth.
September in Takamatsu ushers in a notable increase in rainfall, with 195 mm (7.7 in) of precipitation recorded over 13 days. This marks a continuation of the wet season that begins in July, highlighting a significant jump from the preceding months, particularly August, which saw 148 mm (5.8 in). The upward trend in precipitation during this time reflects the region's shift toward its autumnal rains, just ahead of October’s even heftier average of 236 mm (9.3 in). Such patterns suggest that September serves as a transitional moment, bridging the heavy downpours of summer with the first signs of the cooler, wetter autumn. The consistent number of rainy days underscores the reliability of September's precipitation but signals a clear signal that more substantial rainfall is on the horizon as the seasons change.
In September, Takamatsu experiences a notable shift in humidity, averaging around 87%. This slight decrease from the previous humid months of July and August, both at 92%, hints at the transition from the sweltering summer heat to the more temperate autumn. Despite this dip, September remains one of the more humid months of the year, closely aligning with the earlier summer months and just slightly above the average for October at 85%. The consistent high humidity levels throughout the year, peaking in the summer, point to Takamatsu's subtropical climate, where moisture-laden air prevails, setting the stage for the vibrant foliage that autumn will soon bring.
As September arrives in Takamatsu, Japan, residents and visitors alike should be aware of the shifting UV Index, which stands at 10, categorized as very high this month. This is a slight decrease from the extreme levels seen in the summer months of July and August, where the UV Index peaked at 12. Nevertheless, with a burn time of just 15 minutes, the sun remains potent. This trend highlights a transitional phase, as the weather shifts from the intense summer rays towards more moderate exposure in October, which will see a drop to an index of 7. For timely updates and detailed information on sun safety, check out Takamatsu UV Index.
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As the summer heat begins to wane in Takamatsu, Japan, September brings a delightful transition marked by 253 hours of sunshine. This charming month follows a sun-drenched August, which boasts a vibrant peak of 310 hours, and signals the gradual decline in daylight as the year progresses. The trends reveal a steady increase in sunlight from winter's modest offerings—181 hours in January—culminating in the luminous days of late spring and summer. As we move into autumn, the sunshine hours decrease but remain plentiful compared to the earlier months, illustrating a gentle shift that allows residents to enjoy the beautiful landscapes bathed in soft golden light.
In September, Takamatsu experiences a modest 30% chance of sunny weather, reflecting the transitional shift from summer to autumn. This percentage is relatively low compared to the sunnier months that precede it, particularly July and August, which both hover around 27-31%. However, it is worth noting that the likelihood of sunshine picks up again significantly in the following months, with October and November seeing chances rise to 52% and 55%, respectively. This trend illustrates the city's gradual re-emergence into sunnier conditions, as the vibrant hues of autumn set in, making September a quieter yet crucial stepping stone in Takamatsu's climatic story.
As summer fades into autumn, September in Takamatsu, Japan, offers a gentle transition in daylight duration, featuring around 12 hours of sunlight each day. This month marks a gradual decline from the peak 14 hours of daylight experienced in June and July, symbolizing the approach of shorter days. With daylight decreasing steadily from the vibrant summer months, residents begin to anticipate the cozy feel of autumn, as daylight dips to 11 hours in October, before settling into the more subdued light of winter. This natural ebb and flow of daylight creates a rhythm that residents can rely on, enriching their appreciation for each season as it unfolds.
As summer transitions into autumn, September in Takamatsu embraces a mild breeze with an average wind speed of 2.6 m/s (6 mph). This gentle shift marks a subtle increase from the languid currents of the preceding summer months, which lingered at around 2.4 m/s in July and 2.5 m/s in August. The air begins to hint at the cooling influences of fall, evident as wind speeds rise slightly in the wake of a significant seasonal change. This trend continues into October, where the winds remain steady, offering a refreshing counterpoint to the humid summer days, while also foreshadowing the brisker gusts that characterize the winter months ahead.
Weather in Takamatsu varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Takamatsu, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present starkly contrasting weather conditions. In September, temperatures range from a mild 16°C (62°F) to a sweltering 34°C (93°F), with an average of 24°C (76°F) and high humidity at 87%. This month experiences significant rainfall, totaling 195 mm (7.7 in) over approximately 13 days. In contrast, January offers a much colder climate, with temperatures dropping to a minimum of -2°C (28°F) and peaking at only 14°C (58°F), resulting in an average temperature of 6°C (43°F). Precipitation is notably lower in January, averaging just 48 mm (1.9 in) across 8 days of rain and slightly less humidity at 82%. For more specific details about January weather, you can visit Takamatsu weather in January.
In September, the weather is warm with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 34°C (93°F), resulting in an average of 24°C (76°F). This month experiences substantial rainfall, with 195 mm (7.7 in) spread over 13 days, contributing to a high humidity level of 87%. In contrast, February brings much cooler temperatures, with lows of -2°C (29°F) and highs reaching 18°C (65°F), averaging just 6°C (43°F). The precipitation is notably less at 62 mm (2.4 in) over 8 days, accompanied by a lower humidity of 79%. For more detailed information about the weather during this month, visit Takamatsu weather in February.
September and March present contrasting weather patterns. September enjoys warmer temperatures, ranging from a minimum of 16°C (62°F) to a maximum of 34°C (93°F), with an average of 24°C (76°F). However, it also experiences high humidity levels at 87% and significant precipitation of 195 mm (7.7 in) over 13 days. In contrast, March brings a much cooler climate, with temperatures ranging from a chilly 2°C (35°F) to a mild 19°C (67°F) and an average of 10°C (50°F). This month sees less rainfall, totaling 104 mm (4.1 in) over 10 days, and lower humidity at 73%. For more details on March weather, check out Takamatsu weather in March.
September and April present stark contrasts in weather, with September boasting warmer temperatures and higher humidity. In September, the temperature typically ranges from a minimum of 16°C (62°F) to a maximum of 34°C (93°F), with an average of 24°C (76°F). The month also sees substantial rainfall, averaging 195 mm (7.7 in) over 13 days, and high humidity at 87%. In contrast, April experiences cooler temperatures, with a range of 4°C (39°F) to 24°C (75°F) and an average of just 14°C (57°F). Rainfall during April is less intense, totaling 120 mm (4.7 in) across 9 days, accompanied by a lower humidity level of 74%. For more detailed insights into April weather, visit Takamatsu weather in April.
September's weather is characterized by warmer temperatures, with minimums around 16°C (62°F) and maximums soaring up to 34°C (93°F), resulting in an average of 24°C (76°F). In contrast, May offers cooler conditions, with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 27°C (82°F) and an average of 18°C (65°F). Additionally, September experiences more precipitation, totaling 195 mm (7.7 in) over 13 days, compared to May's 133 mm (5.2 in) over just 10 days. Humidity levels are similar, with September at 87% and May at 84%, making both months feel quite humid, but with September's heat being more pronounced. For more details, you can check out Takamatsu weather in May.
In September, temperatures range from a minimum of 16°C (62°F) to a maximum of 34°C (93°F), averaging around 24°C (76°F), while June experiences slightly cooler conditions with temperatures ranging from a minimum of 15°C (58°F) to a maximum of 30°C (87°F), averaging 22°C (71°F). Both months see a similar number of rainy days, with precipitation occurring on 13 days; however, September receives more rainfall, totaling 195 mm (7.7 in) compared to June's 176 mm (6.9 in). Humidity levels are also marginally higher in September at 87%, while June maintains a humidity level of 86%. For more detailed information on June weather, you can refer to Takamatsu weather in June.
When comparing the weather of September and July, September tends to be slightly cooler, with average temperatures ranging from a minimum of 16°C (62°F) to a maximum of 34°C (93°F). In contrast, July experiences warmer temperatures, with minimums around 20°C (68°F) and maximums reaching 32°C (90°F). Precipitation is more significant in July, totaling 295 mm (11.6 in) across 17 days, compared to September's 195 mm (7.7 in) over 13 days. Additionally, both months exhibit high humidity, with July at 92% and September slightly lower at 87%. For a detailed look at July weather in Takamatsu, you can refer to Takamatsu weather in July.
Comparing the weather between August and September reveals some notable differences. In September, the minimum temperature drops to a cooler 16°C (62°F), while the average temperature is also lower at 24°C (76°F) compared to August's minimum of 20°C (67°F) and average of 28°C (82°F). The maximum temperatures remain relatively close, with September reaching up to 34°C (93°F) and August peaking at 33°C (92°F).
However, September experiences significantly more rainfall, with 195 mm (7.7 in) over 13 days, compared to August's 148 mm (5.8 in) over just 10 days. Humidity levels are slightly lower in September at 87%, down from August's 92%. For a more detailed look at August weather specifics, you can check out Takamatsu weather in August.
In comparing the weather of September and October, September boasts higher temperatures with an average of 24°C (76°F), peaking at 34°C (93°F), while October sees a cooler average of 19°C (67°F) and a maximum of 30°C (86°F). September also experiences significant rainfall, totaling 195 mm (7.7 in) over 13 days, whereas October receives slightly more precipitation at 236 mm (9.3 in) but over just 12 days. Humidity remains relatively high in both months, with September at 87% and October slightly lower at 85%. For more insights on October weather patterns, you can visit Takamatsu weather in October.
September and November present contrasting weather conditions. In September, temperatures range from a minimum of 16°C (62°F) to a maximum of 34°C (93°F), with an average of 24°C (76°F), making it a warm month. However, it also sees significant rainfall, with about 195 mm (7.7 in) spread over 13 days and high humidity at 87%. In stark contrast, November brings cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 23°C (74°F), averaging around 13°C (56°F). Rainfall in November drops considerably to 49 mm (1.9 in) over just 6 days, and humidity slightly decreases to 84%. For more detailed insights, you can check Takamatsu weather in November.
September and December showcase a stark contrast in weather conditions. In September, temperatures range from a mild 16°C (62°F) at night to a sweltering 34°C (93°F) during the day, with an average of 24°C (76°F). The month is also marked by significant rainfall, totaling 195 mm (7.7 in) over about 13 days, accompanied by high humidity at 87%. In contrast, December brings a much colder climate, with temperatures dropping to a minimum of 0°C (33°F) and peaking at 20°C (69°F), averaging just 8°C (47°F). The precipitation in December is substantially lower at 54 mm (2.1 in) over 10 days, with humidity slightly decreased to 82%. For more details, you can check Takamatsu weather in December.
As September unfolds in Takamatsu, the weather transitions into a unique blend of warmth and moisture that sets it apart from the preceding summer months. The average temperature lands comfortably at 24°C (76°F), with highs reaching a steamy 34°C (93°F), allowing for lingering summer vibes even as humidity creeps up to a notable 87%. This month also sees an uptick in precipitation, with rain gracing the city for about 13 days, contributing a total of 195 mm (7.7 in) of moisture, which is more pronounced than in the drier summer months. This combination of warmth and rain signifies the beginning of the fall season, making September a transitional time in Takamatsu’s climate. For a deeper dive into the weather patterns throughout the year, explore the Takamatsu Climate page.