Last updated: August 21, 2025
Experience the vibrant September weather of Miyajima, Japan, where temperatures can reach a maximum of 33°C (92°F), offering warm days ideal for exploration. The average temperature settles around 24°C (75°F), while nighttime brings a refreshing coolness with lows of 15°C (60°F). Travelers should prepare for 237 mm (9.3 in) of precipitation over about 14 days, resulting in a humid environment with 84% humidity. This mix of warmth and moisture creates a lush landscape, making September a unique time to appreciate Miyajima's natural beauty and cultural heritage.
In September, Miyajima, Japan, experiences a delightful transition as summer begins to wane. With temperatures ranging from a comfortable 15°C (60°F) at night to a warm 33°C (92°F) during the day, this month marks the peak of pleasant weather. The average temperature hovers around 24°C (75°F), creating a perfect atmosphere for outdoor exploration and enjoying the island's stunning landscapes. As the humidity from the peak summer months starts to subside, September becomes an ideal time for visitors seeking to experience the beauty and tranquility of Miyajima before the cooler autumn air sets in. This gentle shift in climate not only encourages outdoor activities but also enhances the vibrant natural scenery with vivid autumn colors beginning to emerge.
In September, Miyajima experiences a significant amount of rainfall, with 237 mm (9.3 in) accumulating over an average of 14 days. This late-summer precipitation continues the trend of substantial rain established in the preceding months, particularly July’s peak of 386 mm (15.2 in). While slightly lower than August's 256 mm (10.1 in), September's rainfall maintains a robust presence, which could contribute to the vibrant greenery that characterizes the island. As autumn approaches, this rainfall supports a transition in the local ecology, preparing Miyajima for the drier months ahead, while still echoing the lush, water-rich character of its summer season.
In September, Miyajima experiences a comfortable humidity level of 84%, marking a slight decrease from the sweltering highs of 95% in July and 93% in August. This month transitions from the peak summer humidity, providing a refreshing reprieve as autumn approaches. Over the year, humidity in Miyajima exhibits interesting fluctuations, peaking in the summer months and gradually declining toward the cooler fall and winter seasons. The overall trend highlights a dynamic climate where spring and winter months, such as March's 69% and December's 75%, offer much lower humidity levels, contrasting sharply with the thick humidity and warmth of June's 88%. As such, September stands as a bridge, blending the lingering warmth of summer with the crispness of impending autumn.
In September, Miyajima, Japan, experiences a very high UV Index of 10, necessitating caution for sun exposure, with a burn time of just 15 minutes. This trend marks a slight decline from the peak levels of 11-12 observed during the summer months of July and August, where extreme conditions required even greater vigilance. The transition from summer to fall showcases a gradual decrease in UV intensity, yet it remains crucial for visitors and locals alike to protect their skin. Overall, this month serves as a reminder to remain sun-smart as lingering warmth means UV rays can still be potent. For more detailed information, visit Miyajima UV Index.
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In September, Miyajima experiences a delightful blend of warmth and sunlight, logging 260 hours of sunshine. This marks a gentle decline from the summer peak of 308 hours in August, yet it remains a vibrant time for exploration. As the days begin to shorten, the island’s lush landscapes are bathed in a golden glow, inviting visitors to witness the impressive transition of nature. The steady decrease in sunlight from the sun-drenched summer months signals the approach of autumn, but September still holds onto the last whispers of summer, making it a perfect month for outdoor adventures amidst the island’s iconic scenery.
September in Miyajima, Japan, sees a 31% chance of sunny weather, marking a slight uptick from the more overcast summer months of July and August, which both sit at 25%. As the hot and humid summer gives way to the cooler autumn breeze, the likelihood of sunshine begins to rise. However, it remains lower than many other months, with October showing a significant jump to 59%. This transitional period hints at fluctuating weather, where the anticipation of clearer skies ahead contrasts with the lingering summer overcast. It's an interesting time to visit if you're hoping to catch the tail end of summer warmth alongside the emerging hues of autumn foliage.
As September rolls into Miyajima, Japan, the days begin to subtly shorten, offering approximately 12 hours of daylight. This marks a gentle transition from the longer summer days of July and August, when sunlight spanned 14 hours, to the shorter days that characterize the cooler months ahead. In fact, as autumn settles in, daylight gradually wanes, dropping to 11 hours in October and 10 hours in November. This pattern highlights the rhythmic ebb and flow of nature, creating a beautiful tapestry of changing seasons, where each month brings a unique balance of light and shadow to this enchanting island.
In September, the winds in Miyajima, Japan, calm to an average speed of 2.3 m/s (5 mph), marking a slight drop from the summer months. This gentle breeze, often heralding the transition into autumn, is part of a seasonal trend where wind speeds steadily decrease from a peak in the earlier summer months. As the air cools and the vibrant hues of fall begin to emerge, the environment shifts, inviting visitors to explore the serene beauty of the island. Interestingly, September's wind speed mirrors that of October, suggesting a consistent and mild climate leading into the heart of autumn, making this a pleasant time for outdoor activities and reflections amidst Miyajima’s iconic landscapes.
Weather in Miyajima varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Miyajima, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present distinct contrasts in weather patterns. September boasts a warm average temperature of 24°C (75°F) with highs reaching up to 33°C (92°F), accompanied by significant rainfall of 237 mm (9.3 in) across 14 days, leading to a high humidity level of 84%. In contrast, January experiences much colder temperatures, with an average of just 5°C (42°F) and the maximum temperature peaking at 15°C (59°F). Precipitation is significantly lower in January, totaling only 49 mm (1.9 in) over 6 days, and humidity drops to a more moderate 76%. For a detailed overview of winter conditions, you can check out Miyajima weather in January.
September and February present starkly contrasting weather conditions. In September, the temperatures range from a minimum of 15°C (60°F) to a sweltering maximum of 33°C (92°F), with an average temperature of 24°C (75°F). This month experiences substantial precipitation, totaling 237 mm (9.3 in) over 14 days, coupled with high humidity levels at 84%. On the other hand, February brings a chillier atmosphere, with temperatures ranging from a minimum of -4°C (26°F) to a maximum of 20°C (68°F) and an average of just 6°C (43°F). Precipitation in February is significantly lower at 69 mm (2.7 in), occurring over 7 days, and humidity levels are also reduced to 72%. For a more detailed look at February weather, you can visit Miyajima weather in February.
September and March present contrasting weather patterns, showcasing the transition from summer to spring. In September, temperatures are significantly warmer, with a minimum of 15°C (60°F) and an average of 24°C (75°F), peaking at 33°C (92°F). The month is also marked by high humidity at 84% and substantial rainfall, totaling 237 mm (9.3 in) over 14 days. In contrast, March experiences much cooler temperatures, with a minimum of 1°C (33°F) and an average of 10°C (50°F), rising to a maximum of 22°C (71°F). The precipitation is lower in March, at 125 mm (4.9 in) over 10 days, and humidity is more moderate at 69%. For more detailed insights on the weather in March, visit Miyajima weather in March.
In September, the weather is significantly warmer compared to April, with minimum temperatures of 15°C (60°F) and maximums reaching up to 33°C (92°F), resulting in an average temperature of 24°C (75°F). The humidity is quite high at 84%, and the month experiences considerable rainfall, totaling 237 mm (9.3 in) over 14 days. In contrast, April features much cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 24°C (76°F), averaging 14°C (58°F). This month sees less precipitation at 137 mm (5.4 in) over 9 days and lower humidity levels at 75%. For more detailed weather insights, visit Miyajima weather in April.
September and May exhibit distinct weather patterns, highlighting the transition from summer to autumn. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 33°C (92°F), with an average of 24°C (75°F), making it significantly warmer than May. Conversely, May offers cooler temperatures, with a low of 7°C (45°F) and a high of 28°C (83°F), averaging just 19°C (66°F). While September is marked by higher precipitation at 237 mm (9.3 in) over 14 days, May sees less rain, totaling 136 mm (5.4 in) across 9 days. Both months share the same humidity level of 84%, but the overall climate in September tends to feel more oppressive due to the heat combined with the moisture. For more specifics about the weather in May, you can check out Miyajima weather in May.
In September, the weather tends to be warmer than in June, with average temperatures reaching 24°C (75°F) compared to June's 22°C (72°F). Maximum temperatures in September can soar up to 33°C (92°F), while June peaks at 29°C (85°F). Additionally, September experiences higher precipitation, with 237 mm (9.3 in) of rain over 14 days, compared to June's 181 mm (7.1 in) over the same number of days. Humidity levels are slightly lower in September at 84%, compared to June's 88%, making late summer feel a bit more comfortable despite the increased rainfall. For a detailed look at June weather, you can check Miyajima weather in June.
When comparing the weather in September and July, September tends to be slightly cooler, with an average temperature of 24°C (75°F) and a maximum of 33°C (92°F), compared to July’s average of 26°C (79°F) and maximum of 35°C (95°F). However, September experiences higher humidity at 84%, while July has a higher peak at 95%. In terms of rainfall, July is notably wetter, with 386 mm (15.2 in) of precipitation over 19 days, compared to September's 237 mm (9.3 in) across 14 days. For more specific details, you can check Miyajima weather in July.
In comparing the weather between August and September, it's evident that September experiences slightly cooler temperatures, with an average of 24°C (75°F) compared to August's 28°C (82°F). The maximum temperature in September is also lower at 33°C (92°F) versus August’s 35°C (96°F). Both months receive considerable precipitation, with September totaling 237 mm (9.3 in) and August slightly higher at 256 mm (10.1 in), though both see rain on 14 days. Humidity levels are also high in both months, with September at 84% and August at 93%. For a closer look at August weather specifics, check out Miyajima weather in August.
September features warmer temperatures, with a minimum of 15°C (60°F) and an average of 24°C (75°F), peaking at a hot 33°C (92°F). The month is also characterized by heavy rainfall, totaling 237 mm (9.3 in) over 14 days, alongside high humidity at 84%. In contrast, October sees a significant drop in temperature, with a minimum of 8°C (46°F) and an average of 19°C (66°F), with highs reaching 29°C (85°F). Precipitation decreases as well, totaling 172 mm (6.8 in) over just 10 days, and the humidity is slightly lower at 79%. For more detailed information, check out Miyajima weather in October.
September and November exhibit stark differences in weather conditions. September boasts warmer temperatures, with minimums around 15°C (60°F) and daytime highs reaching up to 33°C (92°F), creating a vibrant atmosphere infused with summer warmth. However, it also brings considerable rainfall, with an average of 237 mm (9.3 in) over 14 rainy days and high humidity levels at 84%. In contrast, November experiences a significant drop in temperatures, with minimums declining to 2°C (36°F) and an average of 13°C (55°F). This month sees much less precipitation, totaling just 37 mm (1.5 in) over 5 days, and a lower humidity level at 76%. For more detailed information on November weather, you can refer to Miyajima weather in November.
September weather typically showcases a significant warmth, with average temperatures around 24°C (75°F) and maximums soaring up to 33°C (92°F). The month is characterized by high humidity at 84% and substantial rainfall, accumulating 237 mm (9.3 in) over approximately 14 days. In contrast, December brings a much cooler climate, with average temperatures dropping to 7°C (46°F) and maximums reaching only 20°C (69°F). Precipitation decreases considerably to 61 mm (2.4 in) over about 6 days, and humidity also falls to 75%. For those curious about the specific conditions in December, you can find more details here: Miyajima weather in December.
As summer transitions into autumn, September in Miyajima showcases a delightful transformation in its weather patterns. Though it often boasts warm temperatures, with daytime highs reaching into the low 30s Celsius, the humidity remains notably high, contributing to a muggy atmosphere. This month also experiences increased rainfall, making it one of the wetter times of the year, with nearly half the days seeing some precipitation. Compared to the searing heat of July and August, September provides a refreshing reprieve, yet the lush landscapes thrive on the abundance of moisture. For a deeper understanding of how Miyajima's unique climate shapes both weather and experiences throughout the year, explore Miyajima Climate.