Last updated: August 21, 2025
In September, Wakayama, Japan, experiences a blend of warmth and moisture, making it a uniquely vibrant month. With maximum temperatures reaching 33°C (92°F) and an average of 25°C (77°F), visitors can expect a warm atmosphere, though the minimum temperature drops to a comfortable 15°C (60°F) during the nights. This month also brings considerable precipitation, recording 203 mm (8.0 in) over an average of 15 rainy days, creating a lush, green landscape. Coupled with high humidity levels at 87%, the climate offers a rich tapestry of experience for travelers, blending warmth with the refreshing embrace of tropical breezes. Whether exploring local festivals or enjoying scenic coastal views, September in Wakayama promises both adventure and a refreshing embrace of nature.
In September, Wakayama, Japan, experiences a delightful transition as summer surrenders to the subtle embrace of autumn. The minimum temperatures rise to a comfortable 15°C (60°F), while the averages reach 25°C (77°F), providing a lovely backdrop for outdoor activities. As the month progresses, the maximum temperatures peak at an inviting 33°C (92°F), reminiscent of the previous summer months, but with significantly less humidity. This trend showcases September as a time of warmth and pleasant weather, perfect for exploring the region’s natural beauty and cultural sights before the cooler months set in.
September in Wakayama, Japan, marks a notable shift in the region’s weather patterns, with precipitation reaching 203 mm (8.0 in)—one of the year's highest totals. This month witnesses rain across 15 days, reflecting the lingering effects of the summer monsoon. While the overall precipitation is slightly less than the torrential 302 mm (11.9 in) seen in July, September's rainfall plays a critical role in transitioning to the more temperate autumn months. The combination of substantial rainfall and mild temperatures makes September a lush and vibrant time in Wakayama, highlighting the region's dynamic climate as it gradually prepares for the upcoming seasonal changes.
As summer transitions to autumn in Wakayama, Japan, September marks a noticeable shift in humidity, maintaining a level of 87% that's slightly lower than the peak summer months of July and August, which saw humidity levels soar to 93% and 91%, respectively. This comfortable humidity in September signals the tail end of the sultry season, following a trend where the early fall months gradually ease the sweltering grip of summer. The humidity begins to taper off further into October, but September's lingering moisture still envelops the region, creating an inviting atmosphere that blends warmth with a refreshing breeze. Overall, the month serves as a gentle reminder of summer's robust presence while hinting at the cooler, drier days to come.
As summer transitions into fall, September in Wakayama, Japan, sees a slightly decreased UV Index of 10, categorizing exposure as very high. This marks a subtle decline from the extreme levels of 11 experienced throughout the peak summer months. The burn time also extends slightly, allowing for 15 minutes of unprotected sun exposure before risks elevate. This pattern of high UV levels carries through from March to September, emphasizing the importance of sun protection during these months. To stay informed and safe, check the detailed forecast at Wakayama UV Index.
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September in Wakayama, Japan, offers a delightful transition into autumn with 250 hours of sunshine. This month, while sun-drenched, sees a slight dip from the sunniest peak in August, which boasted an impressive 315 hours of radiant light. Overall, the summer months shine brightly, with May and June also showcasing remarkable hours, while the trend gently tapers off as the year progresses into autumn. As September ushers in cooler breezes, the lingering warmth from summer reflects in the moderate sunshine, making it a perfect time for outdoor exploration in this serene coastal region.
In September, Wakayama, Japan experiences a decrease in sunny days, with the chance of sunshine dropping to 28%, one of the lowest rates of the year. This trend is part of a gradual decline in sunny weather as the seasons transition from the summer heat. Following the peak sunshine months of July and August, which boast only 31% and 30% chances respectively, September marks a clear shift towards more cloud cover. However, it’s worth noting that this gloomy trend is soon followed by a significant rebound in October, when the likelihood of solar rays increases to 59%. Thus, while September is not the sunniest month in Wakayama, it sets the stage for a revitalization in the weather as autumn settles in.
As September unfolds in Wakayama, Japan, residents enjoy a gentle transition towards autumn with approximately 12 hours of daylight. This marks a gradual decline from the sun-drenched days of summer, which peak at 14 hours in June and July. Following the vibrant and longer days of April and May with their 13 hours of light, September brings a softer glow that hints at the coming changes of the season. As daylight diminishes in the months ahead, fluctuating between 11 hours in October and 9 hours in December, September strikes a perfect balance, offering a bittersweet reminder of summer's end while still allowing ample time to bask in the remaining warmth of the sun.
In September, Wakayama, Japan, experiences a gentle breeze with an average wind speed of 2.8 m/s (6 mph), marking a slight uptick from the calmer summer months of July and August. As the year transitions towards autumn, this mild wind offers a refreshing reprieve from the heat, though it remains among the lower speeds recorded throughout the year. Interestingly, the wind picks up towards the end of the month, hinting at the changes to come, as it sets the stage for an increase in speed into October and November. Overall, September embodies a tranquil yet invigorating atmosphere, inviting residents and visitors alike to enjoy the crisp beginnings of fall.
Weather in Wakayama varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Wakayama, 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 15°C (60°F) at night to a sweltering 33°C (92°F) during the day, with an average around 25°C (77°F). This month is also characterized by high humidity (87%) and significant rainfall, with 203 mm (8.0 in) falling over 15 days. In contrast, January brings much cooler temperatures, with lows plunging to -1°C (30°F) and highs reaching a modest 17°C (62°F), averaging only 6°C (44°F). Precipitation is considerably less in January, totaling 63 mm (2.5 in) over just 9 days, and humidity is slightly lower at 82%. For more detailed information, you can check Wakayama weather in January.
September and February present stark contrasts in weather conditions. September boasts warmer temperatures, with a minimum of 15°C (60°F) and an average of 25°C (77°F), reaching highs of up to 33°C (92°F). This month also experiences significant rainfall, accumulating 203 mm (8.0 in) over 15 days, paired with high humidity at 87%. In contrast, February brings much cooler temperatures, starting at a low of -1°C (31°F) and averaging around 7°C (44°F), with a maximum of 18°C (65°F). Precipitation is less prevalent, with only 76 mm (3.0 in) over 9 days and lower humidity at 79%. For more details, check out Wakayama weather in February.
September and March present contrasting weather conditions, reflecting the transition from summer to autumn and winter to spring, respectively. In September, temperatures are warmer with a minimum of 15°C (60°F) and a high of 33°C (92°F), averaging around 25°C (77°F). The month is also characterized by significant rainfall, with 203 mm (8.0 in) over 15 days, resulting in high humidity levels at 87%. Conversely, March experiences cooler temperatures, ranging from a minimum of 1°C (34°F) to a maximum of 20°C (68°F), with an average of just 10°C (51°F). Rainfall is lighter in March, accumulating to 115 mm (4.5 in) over 11 days and accompanied by lower humidity at 74%. For those interested in more specific details, you can find additional information here: Wakayama weather in March.
When comparing the weather in September and April, significant differences emerge in temperature, precipitation, and humidity. September tends to be much warmer, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 33°C (92°F), while April is cooler, with temperatures averaging between 4°C (39°F) and 23°C (73°F). Additionally, September experiences higher rainfall, averaging 203 mm (8.0 in) over 15 days, compared to April's 128 mm (5.1 in) over just 10 days. Humidity levels in September are also higher at 87%, compared to 76% in April. For more detailed information on the weather in April, you can visit Wakayama weather in April.
September and May present notable differences in weather patterns. In September, the temperatures range from a minimum of 15°C (60°F) to a maximum of 33°C (92°F), with an average of 25°C (77°F). This month also sees a higher level of precipitation at 203 mm (8.0 in) over 15 days, coupled with high humidity at 87%. In contrast, May features milder temperatures, with a minimum of 8°C (47°F) and a maximum of 28°C (82°F), averaging 19°C (67°F). Precipitation in May is lower, at 164 mm (6.5 in) over about 10 days, and the humidity is slightly lower at 83%. For more detailed insights, check out Wakayama weather in May.
When comparing the weather in September and June, both months exhibit relatively mild temperatures and high humidity levels of 87%. September tends to be warmer, with daily averages reaching 25°C (77°F) and maximum temperatures hitting 33°C (92°F), while June has cooler averages of 22°C (72°F) and maximums of 28°C (83°F). Additionally, both months see significant precipitation, with September experiencing 203 mm (8.0 in) over 15 days compared to June's 199 mm (7.8 in) over 14 days. For a more detailed look at June weather in Wakayama, you can visit Wakayama weather in June.
In comparing the weather between July and September, July tends to be slightly warmer with average temperatures around 26°C (80°F), reaching a maximum of 34°C (94°F). In contrast, September has a cooler average temperature of 25°C (77°F) and max temperatures peaking at 33°C (92°F). Both months are characterized by high humidity levels, with July averaging 93% compared to September's 87%. However, rainfall is more prevalent in July, with a total of 302 mm (11.9 in) over 18 days, as opposed to September's 203 mm (8.0 in) across 15 days. For more detailed information, you can check Wakayama weather in July.
September weather shows a slight cooling trend compared to August, with average temperatures decreasing from 28°C (83°F) in August to 25°C (77°F) in September. The maximum temperature in September reaches 33°C (92°F), just a bit lower than August's peak of 35°C (95°F). While September experiences more precipitation with 203 mm (8.0 in) over 15 days compared to August's 178 mm (7.0 in) over 12 days, the humidity remains high in both months, slightly decreasing from 91% in August to 87% in September. For more details on the weather during this period, you can view Wakayama weather in August.
September typically experiences warmer temperatures, with average highs around 33°C (92°F) and lows of 15°C (60°F), while October sees a notable decrease, averaging between 10°C (49°F) and 29°C (84°F). Precipitation also increases in October, reaching 267 mm (10.5 in) over 12 days compared to September’s 203 mm (8.0 in) over 15 days. Additionally, humidity slightly dips from 87% in September to 85% in October, creating a more comfortable atmosphere as the month progresses. For more details, you can check Wakayama weather in October.
September weather tends to be much warmer and more humid than November, with average temperatures reaching 25°C (77°F) and maximums soaring up to 33°C (92°F). This month experiences significant rainfall, averaging 203 mm (8.0 in) over about 15 days, contributing to a high humidity level of 87%. In contrast, November brings a cooler climate, with average temperatures dropping to 14°C (57°F) and maximums reaching only 24°C (75°F). Precipitation also decreases significantly to 63 mm (2.5 in) over just 7 days, and humidity slightly lowers to 83%. For more details, you can refer to Wakayama weather in November.
September and December present contrasting weather patterns in terms of temperature, precipitation, and humidity. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 33°C (92°F), with an average of 25°C (77°F), creating a warm and humid atmosphere with high humidity at 87%. This month also experiences significant rainfall, totaling 203 mm (8.0 in) over 15 days. In contrast, December sees much cooler temperatures, with a range from a low of 2°C (35°F) to a high of 21°C (70°F), averaging only 9°C (48°F). Precipitation decreases to 76 mm (3.0 in) across about 10 days, and humidity remains relatively lower at 83%. For a detailed look at December weather specifically, check out Wakayama weather in December.
As September unfolds in Wakayama, it marks a transition from the sweltering summer heat to more temperate conditions. While daytime temperatures can still soar, the average drops, offering a milder climate compared to the peak summer months. With an increase in humidity and significant rainfall over half the month, visitors can expect a lush, vibrant landscape, albeit with the need for occasional indoor plans. This month sets the stage for the approaching autumn, blending the last remnants of summer warmth with the refreshing breezes that hint at the cooler days ahead. For a detailed view of what to expect throughout the year, check out the Wakayama Climate.