Last updated: August 21, 2025
In September, Morioka, Japan, experiences a dynamic transition from summer to autumn, characterized by a maximum temperature of 30°C (87°F) and a refreshing average of 17°C (64°F). The month is marked by cool evenings, with temperatures dipping to a minimum of 2°C (36°F). This shift brings along a significant amount of precipitation, totaling 112 mm (4.4 in) over approximately 12 days, contributing to the region's lush greenery. With humidity levels averaging at 86%, September in Morioka is a blend of warmth and moisture, making it a unique and refreshing time to visit.
In September, Morioka, Japan experiences a refreshing transition as summer yields to the crispness of autumn. With temperatures ranging from a mild 2°C (36°F) to a pleasant 30°C (87°F), the month boasts an average of 17°C (64°F), making it an ideal time for outdoor activities. As the heat of July and August fades, visitors can enjoy comfortable days that invite exploration while still requiring a light jacket for the cooler evenings. This gradual drop in temperature marks the start of a beautiful season, characterized by vibrant foliage and a tranquil atmosphere, showcasing Morioka's charm in its very own autumnal glow.
In September, Morioka experiences a noteworthy balance in precipitation, recording 112 mm (4.4 in) over 12 days, which aligns closely with late summer rainfall patterns. This month’s rainfall, while slightly lower than the summer peak seen in July and August, reflects a transition to autumn as the weather begins to cool. Interestingly, September's precipitation shows a substantial sum, contributing to the total annual averages while also highlighting the city's diversity in weather throughout the year. The frequency of rainy days remains manageable, paving the way for clear intervals that hint at the upcoming fall scenery and its vibrant foliage.
In Morioka, Japan, the month of September sees a noticeable humidity level of 86%, marking a slight decline from the sweltering 92% experienced during the peak summer months of July and August. This drop signals the onset of autumn, where the air can feel refreshingly crisp, yet still retains a lingering warmth from the summer. The overall trend throughout the year shows a gradual decrease in humidity from the high summer months, peaking in June and continuing through August, before transitioning into the cooler, drier conditions of October and November. Thus, September serves as a transitional month where summer’s humidity begins to yield to the more temperate climate of fall.
As September rolls in, Morioka, Japan, experiences a notable UV Index of 9, placing it within the very high exposure category. With a burn time of just 15 minutes, it's essential for residents and visitors to take precautions against harmful UV radiation, especially as the summer warmth still lingers. This month signifies a subtle shift from the extreme indices of August, which peaked at 11, while the UV levels in June also reached the same intensity. The gradual decline in UV Index moving toward October, which drops to 6, highlights the changing seasons and reminds us to stay vigilant about sun safety. For more detailed insights on UV exposure throughout the year, visit Morioka UV Index.
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As summer transitions to autumn, September in Morioka, Japan, offers a beautiful balance of sunlight with 237 hours of sunshine. This is a slight dip from the summer peak in May, where the sun shares its warmth for an impressive 287 hours. The month follows the gradually declining trend established in previous months, showcasing a gentle departure from the long, bright days of summer. Despite not reaching the highest sunshine hours, September's pleasant weather still invites outdoor activities, making it a delightful time for both locals and visitors to enjoy the scenic beauty of the region before the colder months set in. Embrace the charm of September's sunshine, as it gently reminds us of the vibrant summer days that preceded it.
As September rolls into Morioka, Japan, the likelihood of sunny weather stands at 25%, a modest outlook that reflects the shift towards autumn. Although this percentage is on par with the rain-soaked summer months of July and August, it marks a slight improvement from the preceding season. Historically, early autumn transitions tend to bring back some sunshine, as the stormy humidity of summer dissipates. This trend is mirrored by an upward tick in sunny days through the fall months, particularly as the days grow shorter and the air becomes crisper. However, while September may not boast the most dazzling skies, it does hint at the promise of clearer weather ahead, setting the stage for the stunning autumn foliage that Morioka is renowned for.
As summer gracefully fades into autumn, September in Morioka, Japan offers a gentle transition with approximately 12 hours of daylight. Following the peak summer months where the sun graces the skies for up to 14 hours a day, the daylight hours begin to wane, setting the stage for the cozy embrace of fall. This gradual decrease continues into October with 11 hours of daylight, hinting at the shorter days to come in the winter months. The shifting daylight reflects a rhythm of nature, inviting residents and visitors alike to savor the crisp air and vibrant autumn hues, all under the softer light that September brings.
As September arrives in Morioka, Japan, the gentle whispers of the wind carry a refreshing change from the summer heat. With an average wind speed of 2.2 m/s (5 mph), the breezes begin to pick up slightly from the languid summer months, providing a subtle hint of the autumn transition. This increase marks a shift from July's calmest days, where winds barely reached 1.7 m/s (4 mph), and mirrors the typical seasonal variability observed throughout the year. The winds remain relatively mild as they continue to prepare for the cooler months ahead, reflecting an inviting balance that nurtures both the enchanting fall foliage and the peaceful atmosphere of the region.
Weather in Morioka varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Morioka, 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 2°C (36°F) at night to a warm 30°C (87°F) during the day, averaging around 17°C (64°F). This month experiences a higher level of precipitation, totaling 112 mm (4.4 in) over 12 days, accompanied by humidity levels of 86%. In contrast, January brings much colder conditions, with minimum temperatures plummeting to -20°C (-3°F) and a maximum of only 5°C (40°F), with an average temperature of -5°C (24°F). Precipitation decreases significantly to 65 mm (2.6 in), also spread over 12 days, and humidity is slightly lower at 80%. For more detailed insights, you can check Morioka weather in January.
September and February present strikingly different weather conditions. In September, temperatures range from a mild 17°C (64°F) on average, peaking at 30°C (87°F), creating warm days that are often accompanied by high humidity at 86%. The month experiences an average precipitation of 112 mm (4.4 in) across 12 days. In contrast, February is characterized by much colder temperatures, with an average of -4°C (25°F) and maximums only reaching 7°C (45°F). This winter month sees a lower total precipitation of 87 mm (3.4 in), spread over more days—16 in total—but with considerably less humidity at 79%. For a detailed look at February's weather, check out Morioka weather in February.
September and March present contrasting weather conditions. In September, temperatures range from a cool 2°C (36°F) at night to a warm 30°C (87°F) during the day, making it an overall pleasant month with an average of 17°C (64°F). However, it does come with higher humidity at 86%, alongside considerable rainfall, totaling 112 mm (4.4 in) across about 12 days. In contrast, March is much colder, with temperatures dipping as low as -15°C (4°F) at night and peaking at 16°C (60°F) during the day, averaging just 1°C (35°F). While it experiences slightly less rainfall at 103 mm (4.0 in) over about 14 days, March manages to maintain lower humidity levels at 77%. For a more detailed look at March weather, visit Morioka weather in March.
September and April present contrasting weather patterns, each with its own unique characteristics. In September, temperatures range significantly from a chilly 2°C (36°F) at night to a warm 30°C (87°F) during the day, resulting in an average of 17°C (64°F). The month sees considerable rainfall, with 112 mm (4.4 in) spread over approximately 12 days, contributing to the high humidity of 86%. In contrast, April is much cooler, with temperatures fluctuating between a minimum of -12°C (11°F) and a maximum of 22°C (72°F), averaging just 6°C (44°F). Although April experiences slightly more precipitation at 125 mm (4.9 in) over 16 days, the humidity is lower at 75%. For more detailed insights, check out Morioka weather in April.
When comparing the weather in September and May, we see notable differences in temperatures and precipitation patterns. September experiences a wider temperature range, with minimums around 2°C (36°F) and maximums peaking at 30°C (87°F), leading to an average of 17°C (64°F). In contrast, May is slightly cooler, with minimums at 1°C (34°F) and maximums reaching 28°C (83°F), averaging 13°C (56°F). Both months have a considerable amount of rainfall, with September receiving 112 mm (4.4 inches) over 12 days and May following closely with 99 mm (3.9 inches) across 13 days. Humidity levels are also higher in September at 86%, compared to 80% in May. For a more detailed look at the May weather specifically, check out Morioka weather in May.
In comparing the weather of September and June, we see that both months have similar average temperatures, with September offering a wider range from a cool minimum of 2°C (36°F) to a warm maximum of 30°C (87°F). In contrast, June maintains a slightly higher minimum temperature of 6°C (42°F) and a maximum of 28°C (83°F). Precipitation levels are almost identical, with September recording 112 mm (4.4 in) over 12 days and June slightly lower at 111 mm (4.4 in) over the same number of days. Interestingly, humidity remains quite high in both months, with September at 86% and June at 87%. For more details on June's weather, you can refer to Morioka weather in June.
In comparing the weather between September and July, we can see notable differences in temperature and precipitation. September experiences a wider range of temperatures, with a minimum of 2°C (36°F) and a maximum of 30°C (87°F), averaging around 17°C (64°F). In contrast, July has consistently warmer temperatures, with a minimum of 12°C (55°F) and a maximum of 32°C (89°F), averaging 21°C (70°F). Precipitation also varies, as September receives 112 mm (4.4 in) over 12 days, while July sees a higher total of 169 mm (6.7 in) across 16 days. Humidity levels are slightly elevated in July at 92%, compared to September's 86%. For more details on July's weather, you can refer to Morioka weather in July.
In September, temperatures tend to be cooler than in August, with a minimum of 2°C (36°F) compared to August's 9°C (48°F) low. While the average temperature in September is 17°C (64°F), August maintains a warmer average of 22°C (72°F). The maximum temperature also peaks higher in August at 33°C (91°F), while September sees a high of 30°C (87°F). Although September experiences slightly less precipitation at 112 mm (4.4 in) over 12 days, compared to August's 146 mm (5.8 in) over 16 days, humidity remains relatively high in both months, measuring 86% in September and 92% in August. For more details, visit Morioka weather in August.
September and October present distinctly different weather patterns. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 30°C (87°F), averaging around 17°C (64°F). The month sees a moderate amount of precipitation at 112 mm (4.4 in) over 12 days, with a relatively high humidity of 86%.
In contrast, October experiences a drop in average temperature to 11°C (53°F), with daily highs reaching 25°C (78°F) and lows dipping to 0°C (32°F). Additionally, precipitation increases to 144 mm (5.7 in) over the same 12 days, while humidity slightly decreases to 82%. For more details on October weather in this region, you can visit Morioka weather in October.
September and November present contrasting weather conditions. In September, temperatures range from a comfortable minimum of 2°C (36°F) to a warm maximum of 30°C (87°F), with an average of 17°C (64°F). The month is fairly wet, receiving 112 mm (4.4 in) of precipitation over 12 days, and humidity remains high at 86%. Conversely, November sees a significant drop in temperatures, with a minimum of -11°C (12°F) and an average of only 5°C (41°F). The maximum temperature is much cooler, reaching 18°C (64°F). Precipitation decreases to 66 mm (2.6 in) across 11 days, and humidity drops to 79%. For a detailed view of November's climate, you can refer to Morioka weather in November.
In September, the weather tends to be much milder, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 30°C (87°F) and averaging around 17°C (64°F). The month also experiences significant rainfall, accumulating 112 mm (4.4 in) over about 12 days, coupled with high humidity at 86%. In contrast, December brings a dramatic drop in temperatures, where the minimum can reach a chilling -14°C (7°F) and the average hovers around -2°C (29°F), peaking at 12°C (54°F). Precipitation is slightly lower at 89 mm (3.5 in), but the number of rainy days increases to 17, with humidity remaining relatively lower at 80%. For more specific details about December weather in Morioka, visit Morioka weather in December.
As September unfolds in Morioka, the weather transitions noticeably from the warmth of summer to the crispness of autumn. With average temperatures hovering around a mild 17°C, it’s a welcome change from the sweltering heights experienced earlier in the season. Enjoyable days sometimes reach up to 30°C, but they are often accompanied by increased humidity and a notable amount of rainfall, averaging 112 mm over about 12 days. This month stands out for its lush greenery brought forth by the rain, making it a picturesque time in the region. For a deeper understanding of how Morioka’s weather patterns shift throughout the year, check out Morioka Climate.