Last updated: August 21, 2025
September in Ishigaki, Japan, is characterized by warm temperatures and considerable rainfall. With a maximum temperature reaching 30°C (87°F) and an average of 28°C (83°F), visitors can expect a tropical climate perfect for beach activities. However, prepare for humidity levels around 82%, creating a muggy atmosphere. The month sees an average minimum temperature of 25°C (78°F), offering comfortable evenings. Rainfall is frequent, with a total precipitation of 182 mm (7.2 in) spread across 17 days, making it wise to pack an umbrella for your adventures. Despite the rain, the lush landscapes and vibrant culture of Ishigaki continue to thrive, providing a unique experience for travelers.
In September, Ishigaki, Japan, welcomes the lingering warmth of summer, with temperatures averaging a balmy 28°C (83°F) and peaking at a comfortable 30°C (87°F). The month starts to cool slightly from the sweltering heat of August, yet maintains a mild minimum of 25°C (78°F), allowing for pleasant outdoor activities and beach outings. As summer transitions into fall, the days remain warm and inviting, making September an ideal time for visitors to explore the island's stunning natural beauty, indulge in water sports, or simply bask in the sun. This month effectively captures the last whispers of summer, paving the way for the gentle coolness of autumn just around the corner.
September in Ishigaki, Japan, continues the trend of significant rainfall that characterizes the late summer months, with precipitation reaching 182 mm (7.2 in) over an average of 17 days. This consistent downpour follows the peak of August, which recorded a remarkable 280 mm (11.0 in), maintaining the tropical atmosphere of the region. As the transition to autumn begins, September’s rainfall represents a slight decrease from August, yet it remains substantial enough to support the lush vegetation and vibrant ecosystems that thrive on the island. With frequent showers occurring throughout the month, visitors and locals alike must be prepared for the weather, embracing the beauty of Ishigaki's rich landscapes shaped by its abundant moisture.
In September, Ishigaki, Japan, experiences a humidity level of 82%, slightly lower than the peak months of May through July, which hover around 84%. This month marks the transition from the summer heat to the more temperate autumn, where humidity begins to gently recede. Overall, the trend reveals a consistent high humidity throughout the summer months, peaking in the late spring and early summer. The gradual decline in humidity toward October signals a shift in the weather pattern, providing a more comfortable climate as the year shifts into its cooler months. The relatively moist conditions in September continue to underscore Ishigaki's tropical charm, but with a hint of relief as the sweltering summer draws to a close.
As September rolls in, Ishigaki, Japan remains basked in intense sunshine, with a UV Index of 13, categorizing exposure as extreme. This marks a continuation of the high UV levels that characterized the summer months, as both July and August also recorded a UV Index of 13, signifying minimal change in the sun's strength. The burn time stays critically short at just 10 minutes, emphasizing the necessity for sun protection during this period. The trend is clear—residents and visitors alike must stay vigilant against the relentless sun, just as they did over the preceding summer months. As autumn approaches, the UV Index will gradually decline, but September stands firm as a testament to Ishigaki's enduring tropical climate. For more detailed information, you can check out the Ishigaki UV Index.
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September in Ishigaki, Japan, boasts an impressive 297 hours of sunshine, marking a slight dip from the peak of summer but still basking in generous daylight. This month transitions from the intense heat of July and August, where the island enjoys a remarkable 334 and 315 hours of bright days, respectively. Despite the gradual decrease as autumn approaches, September continues to offer ample sunshine, allowing visitors and locals alike to savor the beautiful beaches and lush landscapes. The trend reveals that as the year progresses, sunshine hours may fluctuate, but September still stands out as a vibrant month, blending the warmth of summer with the welcome freshness of fall.
As September rolls around in Ishigaki, Japan, the likelihood of sunny weather significantly improves, with a promising 61% chance of sun. This marks a notable contrast to the preceding months of June and July, which experience a drop in sunshine, hovering around 9% and 27% respectively. The weather gradually brightens as the year progresses, with September revealing a peak in sun probability, making it an ideal time for outdoor activities. Following September, the chances of sunny days persist, but relatively decrease again in October to 44%. Thus, if you're planning a visit, September stands out as a delightful opportunity to bask in the warmth of the sun before the milder months ahead.
As September rolls in Ishigaki, Japan, daylight duration settles at 12 hours, mirroring the sun-kissed abundance of August. This month marks a transition point, as summer's long, bright days begin to wane gradually. Throughout the year, daylight peaks in May, June, and July with 13 hours, creating a vibrant atmosphere perfect for outdoor adventures. While September maintains the generous light of summer, it signals the upcoming shift toward shorter days in October, where daylight dips to 11 hours. Overall, Ishigaki experiences a rhythmic ebb and flow of sunlight, inviting residents and visitors alike to relish each changing season beneath its skies.
As September ushers in the transition from summer to autumn in Ishigaki, Japan, average wind speeds dip to a gentle 5.4 m/s (12 mph). This marks the month's notably calmer breezes compared to the bustling winds of earlier summer, where July experienced a lively gust of 7.2 m/s (16 mph). While winds are milder in September, this pattern hints at a broader trend: after peaking in December with a brisk 8.7 m/s (20 mph), wind speeds consistently fluctuate with a gradual descent towards the peacefulness of September. As autumn settles in, the softening winds invite a serene ambiance, perfect for basking in the natural beauty of Ishigaki.
Weather in Ishigaki varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ishigaki, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is significantly warmer, with minimum temperatures around 25°C (78°F) and an average of 28°C (83°F), peaking at 30°C (87°F). This month also experiences higher humidity at 82% and more rainfall, totaling 182 mm (7.2 in) over 17 days. In contrast, January brings much cooler temperatures, with a minimum of 12°C (55°F) and an average of 20°C (69°F), reaching a maximum of 25°C (76°F). The precipitation is lower in January at 109 mm (4.3 in) over 15 days, and humidity decreases slightly to 76%. For a closer look at the January weather specifics, visit Ishigaki weather in January.
In comparing the weather of September and February, a noticeable contrast emerges. September boasts a warmer climate with minimum temperatures around 25°C (78°F) and averages peaking at 28°C (83°F), while February exhibits cooler temperatures, with a minimum of 14°C (57°F) and averages around 20°C (69°F). Additionally, September experiences significantly more rainfall, totaling 182 mm (7.2 in) over 17 days, compared to February's 82 mm (3.2 in) over 14 days. The humidity levels also differ, with September being more humid at 82%, whereas February's humidity is relatively lower at 74%. To explore more about February weather in Ishigaki, visit Ishigaki weather in February.
September weather tends to be warmer and more humid compared to March, with average temperatures ranging from a minimum of 25°C (78°F) to a maximum of 30°C (87°F). This month experiences higher precipitation levels, averaging 182 mm (7.2 in) over 17 days, contributing to a humidity rate of 82%. In contrast, March features cooler temperatures, with a minimum of 16°C (61°F) and a maximum of 26°C (78°F). The precipitation is lower in March, averaging 140 mm (5.5 in) over 14 days, and the humidity is also slightly reduced at 79%. For a more detailed comparison, you can check Ishigaki weather in March.
In comparing the weather between September and April, we see that September experiences warmer temperatures, with a minimum of 25°C (78°F) and an average of 28°C (83°F), peaking at 30°C (87°F). In contrast, April is notably cooler, with temperatures ranging from a minimum of 17°C (63°F) to an average of 23°C (74°F) and a maximum of 27°C (81°F). Additionally, September is marked by higher precipitation, totaling 182 mm (7.2 in) over 17 days, while April sees lower rainfall of 146 mm (5.8 in) across 13 days. However, both months share the same humidity level of 82%, creating a similarly muggy atmosphere. For more detailed information, check out the link: Ishigaki weather in April.
Comparing the weather in September and May reveals some notable differences. September tends to be warmer, with average temperatures reaching 28°C (83°F) and highs of 30°C (87°F), while May is slightly cooler, with an average of 26°C (79°F) and a maximum of 29°C (85°F). In terms of precipitation, September experiences heavier rainfall, totaling 182 mm (7.2 in) over 17 days compared to May's 139 mm (5.5 in) over 14 days. Humidity levels are quite similar, with September at 82% and May slightly higher at 84%. For a closer look at the weather specifics in May, you can explore Ishigaki weather in May.
In comparing the weather of September and June, both months exhibit similar temperature ranges, with minimum temperatures around 25°C (78°F), average temperatures of approximately 28°C (83°F), and maximums peaking at 30°C (87°F in September and 86°F in June). Precipitation levels are also comparable, with September recording 182 mm (7.2 in) over 17 days and June slightly higher at 184 mm (7.2 in) over 16 days. Humidity is marginally higher in September at 82%, compared to 84% in June, making both months quite humid. For more details on June weather, you can refer to Ishigaki weather in June.
In comparing the weather between September and July, we notice that both months exhibit similar maximum temperatures, peaking at 30°C (87°F). July tends to be slightly warmer overall, with a minimum temperature of 27°C (80°F) compared to September's 25°C (78°F). Humidity levels remain high in both months, with July experiencing 84% humidity slightly above September's 82%. Interestingly, while both months receive comparable rainfall, September has slightly more precipitation, accumulating 182 mm (7.2 in) over 17 days, just one more rainy day than July. For a more detailed look at July's conditions, you can visit Ishigaki weather in July.
In comparing the weather of September and August, both months exhibit similar average temperatures, hovering around 28°C (83°F). However, September experiences slightly cooler minimum temperatures, averaging at 25°C (78°F) compared to August's 26°C (79°F). While both months have a maximum temperature of 30°C (86-87°F), September sees significantly less rainfall, with 182 mm (7.2 in) over 17 days, in contrast to August's 280 mm (11.0 in) over 21 days. Humidity remains high in both months, with September at 82% and August at 83%. For more insights into August weather, you can check Ishigaki weather in August.
September and October exhibit noticeable differences in weather patterns. September tends to be warmer, with average temperatures peaking at 28°C (83°F) and maximums reaching 30°C (87°F). In contrast, October's temperatures are slightly cooler, averaging 26°C (79°F) with maximums of 29°C (85°F). Precipitation is also quite similar, with September receiving 182 mm (7.2 in) compared to October's 173 mm (6.8 in), both spread over 17 days. Humidity remains relatively consistent, just slightly higher in September at 82% compared to 81% in October. For more detailed insights, check out Ishigaki weather in October.
In September, the weather is notably warmer with average temperatures reaching 28°C (83°F) and a maximum of 30°C (87°F), accompanied by high humidity at 82%. The month also sees considerable rainfall, with 182 mm (7.2 in) of precipitation over 17 days. In contrast, November brings cooler temperatures, with an average of 24°C (76°F) and a maximum of 27°C (81°F), and slightly less humidity at 80%. Precipitation decreases to 151 mm (5.9 in) across 16 days. For more details on November's conditions, check out Ishigaki weather in November.
In September, temperatures are notably warmer, with minimums around 25°C (78°F) and an average of 28°C (83°F), while December sees a significant drop to a minimum of 14°C (57°F) and an average of 22°C (71°F). Despite the cooler temperatures in December, it experiences slightly higher precipitation, with 197 mm (7.8 in) over 20 days compared to September's 182 mm (7.2 in) over 17 days. Humidity levels are similar, with September at 82% and December slightly lower at 78%. For more detailed information on December weather, check this link: Ishigaki weather in December.
As September rolls in, Ishigaki’s weather offers a unique blend of warmth and moisture, distinguishing it from the preceding summer months. With temperatures gently cooling from the peak heat, visitors can expect a comfortable average, albeit with increased humidity and a notable rise in rainfall. This month sees more rainy days, making for lush landscapes; however, it also invites a refreshing atmosphere that many find appealing. For those wanting to know more about the region’s overall climate, check out Ishigaki Climate.