Last updated: August 21, 2025
September in Shizuoka, Japan offers a blend of warm temperatures and high humidity, making it a transitional month as summer gives way to autumn. With a maximum temperature reaching 31°C (89°F) and an average of 24°C (75°F), days are pleasantly warm, while nights cool down to a minimum of 17°C (63°F). However, the month is characterized by significant precipitation, totaling 262 mm (10.3 in) over approximately 19 rainy days, contributing to the lush landscapes the region is known for. With a humidity level soaring to 86%, visitors should be prepared for a tropical feel, making light, breathable clothing a must for enjoying the beauty of Shizuoka during this vibrant month.
As summer transitions into autumn, September in Shizuoka brings a delightful shift in temperatures. With a minimum of 17°C (63°F) and an average that hovers around 24°C (75°F), the month offers a warm farewell to the heat of summer. The maximum temperatures peak at a comfortable 31°C (89°F), maintaining a pleasant warmth while hinting at the cooler days ahead. This month marks a significant change from the sweltering highs of August, showcasing a gradual reduction in heat. As nature prepares for harvest, residents and visitors alike can enjoy the balmy days and cooler evenings, making it a perfect time for outdoor activities amidst stunning autumnal scenery.
September in Shizuoka, Japan, marks a continuation of the summer's wet influence, with precipitation totaling 262 mm (10.3 in) over 19 rainy days. This amount is slightly higher than August's substantial 260 mm, highlighting a consistent pattern of significant rainfall as the region transitions into autumn. The peak rainy months of July and June, however, with 471 mm and 288 mm respectively, set a heavy backdrop to September's downpours. As the weather cools, the steady rainfall helps replenish water resources, underscoring Shizuoka's unique climatic rhythm, where bursts of rainfall taper into the milder dry spells of late autumn.
As summer transitions into autumn, September in Shizuoka, Japan, sees humidity levels settle at a robust 86%. This notable dip from the peak summer months—where humidity soared to a sweltering 93% in July and 90% in August—reflects a gradual shift towards more comfortable conditions. However, September's humidity remains relatively high compared to the earlier months of the year, such as January's 76% and March's 70%. This trend highlights a lingering warmth and moisture in the air, characteristic of Japan’s coastal climate, ensuring that while the season changes, remnants of summer still linger in the humid air.
As September rolls into Shizuoka, Japan, the UV Index settles at a moderate to high level of 10, falling just shy of the summer's peak but still categorized as very high. This month marks a slight decrease from the intense summer months, with the burn time remaining at 15 minutes, a crucial reminder to protect your skin while enjoying the lingering warmth. Overall, September reflects a transition in the UV exposure trends, hinting at the retreat from the extreme levels experienced from May through August. As the days grow shorter, the UV Index will continue to decline, leading into a more moderate October. For comprehensive information on UV levels throughout the year, check out Shizuoka UV Index.
UV Risk Categories
As summer gracefully transitions into autumn, September in Shizuoka, Japan, is marked by a delightful average of 244 sunshine hours. This month witnesses a significant dip from the sun-drenched days of August, which boasted a remarkable 297 hours. However, September still holds its own, offering more sunlight than many earlier months like July and June. The sun's presence starts to mellow, hinting at cooler temperatures ahead, yet the lingering warmth ensures that the vibrant landscapes continue to thrive. As the year progresses, Shizuoka displays a beautiful ebb and flow of sunlight, with April and May sharing the crown for the sunniest spring months, while October awaits with a gentle decline in daylight. Overall, September captures the enchanting shift of nature, allowing residents and visitors alike to bask in the softening glow of the sun before the crispness of autumn takes over.
In September, Shizuoka, Japan, experiences a 30% chance of sunny weather, marking a subtle decline as the city transitions from the summer months. This percentage reflects a notable decrease compared to the sunnier days of earlier late summer, with July and August enjoying significantly higher probabilities at 31% and 33%, respectively. As autumn approaches, the likelihood of clear skies dips, continuing a trend observed from spring’s higher percentages; notably, April and May start off with 47% and 26% chances respectively. While September may not boast the sunniest days, it still offers a pleasant blend of warmth and cooling breezes, making it a delightful month for outdoor pursuits.
As summer gives way to autumn, September in Shizuoka, Japan, offers a gentle transition with daylight lasting around 12 hours. This month follows a vibrant summer marked by long days, peaking at 14 hours in June and July. As we move deeper into the year, the daylight begins to shorten, with September showcasing a slight decrease from August's 13 hours. This gradual decline sets the stage for the cozy, shorter days of fall, as October brings it down to 11 hours, ultimately leading into the winter months when daylight diminishes further. The changing daylight hours not only reflect the shift in seasons but also invite residents and visitors to embrace the unique beauty of each phase in Shizuoka.
As September arrives in Shizuoka, Japan, the average wind speed settles at a mild 2.8 m/s (6 mph), reflecting a slight dip from the summer months. This gentle breeze creates a comfortable atmosphere for outdoor activities, merging seamlessly with the fading warmth of summer. Notably, the wind speeds in September mirror those of March and August, indicating a transition into the cooler months ahead. As the city prepares for autumn, the calming winds serve as a reminder of nature's rhythm, gradually giving way to the brisker gusts of October, which average just slightly lower at 2.7 m/s. Overall, September's tranquil breezes paint a perfect backdrop for enjoying the last golden days of summer.
Weather in Shizuoka varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Shizuoka, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather. In September, temperatures range from a mild 17°C (63°F) at night to a warm 31°C (89°F) during the day, with an average of 24°C (75°F). This month experiences significant rainfall, with 262 mm (10.3 in) spread over 19 days and humidity reaching a high 86%. In contrast, January is characterized by much colder conditions, with temperatures dropping to a minimum of -1°C (30°F) and only rising to a maximum of 17°C (63°F), averaging just 7°C (45°F). Precipitation is considerably lower, at 71 mm (2.8 in) over just 6 days, and the humidity sits at a more comfortable 76%. For more detailed insights, check out Shizuoka weather in January.
September and February present stark contrasts in weather conditions. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 31°C (89°F), resulting in an average temperature of 24°C (75°F). The month is characterized by high humidity at 86% and significant rainfall, totaling 262 mm (10.3 in) over 19 days, making it one of the wetter months. In contrast, February experiences much cooler temperatures, with a minimum of 0°C (32°F) and an average high of only 18°C (66°F), averaging around 8°C (46°F). Precipitation is notably lower in February, with just 98 mm (3.9 in) over 8 days and a reduced humidity of 74%. For a closer look at February's weather specifics, check out Shizuoka weather in February.
September and March present contrasting weather conditions. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 31°C (89°F), with an average of 24°C (75°F). The month is notably humid, with an average humidity of 86% and significant rainfall totaling 262 mm (10.3 in) over 19 days. In stark contrast, March experiences much cooler temperatures, with a minimum of 3°C (37°F) and a maximum of 21°C (71°F), averaging at 11°C (52°F). While it remains relatively wet with 227 mm (8.9 in) of precipitation over 13 days, the humidity is lower at 70%. For more detailed information, check out Shizuoka weather in March.
September and April present quite contrasting weather patterns. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 31°C (89°F), with an average of 24°C (75°F), making it noticeably warmer. This month also sees significant rainfall, with 262 mm (10.3 in) of precipitation over 19 days, and a high humidity level of 86%. In contrast, April experiences much cooler temperatures, ranging from a minimum of 5°C (41°F) to a maximum of 24°C (76°F), yielding an average of 14°C (57°F). Precipitation is slightly lower in April at 244 mm (9.6 in) over 13 days, accompanied by a humidity level of 74%. The shift from the warm, humid conditions of September to the cooler, drier atmosphere of April reflects a significant seasonal transition. For more details, you can check Shizuoka weather in April.
September and May present quite contrasting weather conditions. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 31°C (89°F), with an average of 24°C (75°F), making it a warmer month overall. The humidity is notably high at 86%, along with significant rainfall, totaling 262 mm (10.3 in) over 19 days. In contrast, May experiences cooler temperatures, with lows of 10°C (50°F) and highs reaching 25°C (78°F), averaging 18°C (65°F) and featuring less rainfall of 240 mm (9.5 in) over just 12 days. Humidity is lower in May at 81%, contributing to a more comfortable atmosphere. For more detailed information about weather in May, visit Shizuoka weather in May.
When comparing the weather in September to June, we notice distinct differences in temperature and precipitation. September tends to be warmer, with average temperatures reaching 24°C (75°F) compared to June's average of 21°C (70°F). The maximum temperature in September also peaks at 31°C (89°F), while June's maximum is slightly lower at 28°C (83°F). Regarding precipitation, both months experience significant rainfall, but September receives 262 mm (10.3 in) over 19 days, whereas June has a bit more with 288 mm (11.4 in) over 17 days. Humidity levels are similar, with September at 86% and June at 88%. For more detailed information, you can check Shizuoka weather in June.
When comparing the weather in September and July, we can observe some notable differences. September generally has a slightly cooler temperature range, with minimums of 17°C (63°F) and an average of 24°C (75°F), while July's temperatures start higher, with minimums at 19°C (67°F) and an average of 25°C (77°F). Both months can reach a maximum of 31°C (88°F-89°F), though September averages a bit lower overall. Precipitation is significantly higher in July, with 471 mm (18.6 in) over 23 days compared to September's 262 mm (10.3 in) over 19 days, contributing to July's higher humidity at 93% versus September's 86%. For more details, you can refer to Shizuoka weather in July.
In September, temperatures tend to be slightly lower than in August, with averages of 24°C (75°F) compared to August's average of 27°C (80°F). The maximum temperatures in September reach 31°C (89°F), just a few degrees cooler than August's peak of 34°C (93°F). Precipitation levels are comparable, with September receiving 262 mm (10.3 in) over 19 days, while August sees 260 mm (10.2 in) over 18 days. Humidity is a bit lower in September at 86%, compared to 90% in August. For more detailed information, you can visit Shizuoka weather in August.
September and October present a noticeable transition in weather patterns. In September, temperatures are generally warmer, with a minimum of 17°C (63°F) and an average of 24°C (75°F), peaking at 31°C (89°F). However, it is also a wetter month, receiving 262 mm (10.3 in) of precipitation over 19 days, accompanied by high humidity at 86%. By October, the climate begins to cool, with temperatures dropping to a minimum of 12°C (54°F) and an average of 19°C (67°F), while the maximum reaches 28°C (83°F). Although October sees a slight increase in overall precipitation to 305 mm (12.0 in), it occurs over fewer days (17), and humidity decreases slightly to 83%. This shift highlights the transition from the warm, humid days of September to the cooler, slightly wetter climate of October. For a detailed overview, check out Shizuoka weather in October.
In September, the weather is warm and humid, with average temperatures around 24°C (75°F) and highs reaching up to 31°C (89°F). The month is also quite wet, experiencing significant rainfall of 262 mm (10.3 in) over 19 days, with humidity levels at a high 86%. In contrast, November brings cooler and drier conditions, with average temperatures dropping to 15°C (59°F) and maximums around 23°C (73°F). Precipitation decreases significantly to 101 mm (4.0 in) across 11 days, and humidity sits at a more comfortable 80%. For a detailed look at the weather during this time, you can refer to Shizuoka weather in November.
In September, the weather is characterized by warm temperatures, with a minimum of 17°C (63°F) and a maximum reaching up to 31°C (89°F), averaging around 24°C (75°F). The month is also quite wet, with a high precipitation rate of 262 mm (10.3 in) spread over 19 days, and humidity levels soaring at 86%.
In contrast, December brings a significant drop in temperatures, with minimums falling to 1°C (33°F) and maximums capping at 20°C (68°F), resulting in an average of 10°C (50°F). The precipitation during this month decreases to 82 mm (3.2 in) over just 8 days, and humidity levels also lower to 78%. For a closer look at the December conditions, you can check out Shizuoka weather in December.
September in Shizuoka brings a noticeable shift as the summer heat begins to ease, with warm temperatures lingering but gradually giving way to more comfortable conditions. This month is characterized by significant rainfall, marking it as one of the wetter times of the year, which contributes to the lush landscapes the region is known for. The high humidity can feel intense, but it’s this unique blend of warmth and moisture that creates a vibrant atmosphere, perfect for enjoying the area's natural beauty. As the month progresses, the delightful transition towards autumn becomes evident, offering a refreshing contrast to the scorching summer months. For more details on Shizuoka's year-round climate patterns, visit Shizuoka Climate.