Last updated: August 21, 2025
September in Mito, Japan, is characterized by a warm climate, with temperatures peaking at a maximum of 32°C (90°F) and settling at an average of 23°C (74°F). As the month unfolds, the temperature can dip to a refreshing 15°C (60°F), providing a pleasant contrast. However, this transitional period also brings significant precipitation, with 176 mm (6.9 in) falling over approximately 17 days, contributing to the region's lush greenery. The high humidity levels, averaging 84%, enhance the feeling of warmth, making September a time of vibrant nature and dynamic weather patterns in Mito.
In September, Mito, Japan, experiences a notable transition in temperatures, marking the shift from the sweltering summer to the more temperate autumn. With a minimum of 15°C (60°F) and a maximum reaching up to 32°C (90°F), this month maintains a warm average of 23°C (74°F). The lingering warmth from summer is evident, yet as the month progresses, the days gradually start to cool, hinting at the cooler weather to come. September's climate invites both outdoor activities and a refreshing change, making it an ideal time for visitors to enjoy the vibrant landscapes and seasonal festivals before the crisp air of autumn fully settles in.
In September, Mito, Japan experiences a significant uptick in precipitation, recording an impressive 176 mm (6.9 in) over 17 days. This marks a continuation of the rainy trend seen throughout the summer months, particularly in July when the region received the highest rainfall of the year at 209 mm (8.2 in). Following the milder August, which saw 109 mm (4.3 in), September's wetter conditions signal the transition into the autumn season, setting the stage for an even rainier October with 258 mm (10.2 in). As the days shorten and temperatures begin to cool, the increase in rainfall during September is a poignant reminder of nature's rhythm, contributing to Mito's lush landscapes.
In Mito, Japan, the month of September sees humidity levels averaging 84%, indicating a slight drop from the sweltering summer months of July and August, where humidity peaks at 92% and 90%, respectively. This gradual decline is part of a broader trend that begins in mid-year, as the region transitions from the intense heat and moisture of summer to the more temperate conditions of autumn. Compared to the earlier part of the year, where humidity remains consistently high around 75%-76%, September reflects a notable shift, paving the way for a more comfortable climate leading into October, which maintains a humidity of 80%. Overall, September serves as a transitional month, balancing the lingering warmth of summer with the promise of autumn.
In September, Mito, Japan, experiences a UV Index of 9, classifying it in the very high exposure category. As summer transitions into autumn, the risk of harm from unprotected sun exposure remains significant, with a burn time of just 15 minutes. This month marks a slight decline from the extreme levels observed in the heart of summer but still demands caution when enjoying outdoor activities. With the UV Index gradually decreasing from its peak in June and July, it's essential to stay vigilant about sun protection. For more insights into sun safety and the UV Index throughout the year, check out Mito UV Index.
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September in Mito, Japan, offers a delightful transition into autumn, boasting 240 hours of sunshine. Following the sunniest month of August, which basked in an impressive 288 hours, September's brightness maintains a warm glow, reflecting the lingering summer warmth. As the year progresses, daylight gradually diminishes, evidenced by the descent into October's 214 hours. The trend showcases a summer peak, with sunshine starting to taper, creating a beautiful balance between the vibrant energy of late summer and the crispness of fall. Residents and visitors alike can revel in the gentle rays, making September an ideal time for outdoor excursions amid the vibrant landscapes of Mito.
In Mito, Japan, September brings a moderate likelihood of sunny weather, with a 28% chance of sun. Following the summer months, where the chances hovered around 33-34%, September exhibits a notable dip in sunshine, reflecting the transition into autumn. The trend reveals a consistent decline in sunny days as the year progresses towards winter, with October seeing a slight rebound at 47%. Despite the lower probabilities in September, the cool, crisp air offers a refreshing change, making it an appealing time for outdoor activities against the backdrop of the changing leaves.
As summer gives way to autumn, September in Mito, Japan experiences a gradual decline in daylight, with an average of 12 hours illuminating the days. This transition marks a shift from the peak summer brightness of 14 hours seen from June through August, signaling the onset of shorter, cooler days ahead. Following the vibrant month of May, which enjoyed 14 hours of sunlight, September serves as a gentle reminder of the changing seasons, as daylight gradually wanes to 11 hours by October. This rhythmic ebb and flow of daylight not only highlights the beauty of seasonal change but also invites residents and visitors alike to savor the warm hues of early autumn.
September in Mito, Japan, brings a refreshing breeze with an average wind speed of 4.2 m/s (9 mph), slightly increasing from the summer's more subdued currents. This gentle rise in wind speed signals a shift in the season, as the summer heat gives way to the crispness of autumn. Throughout the year, wind speeds appear to oscillate, with the highest gusts felt in April and December, both reaching 4.7 m/s (10 mph). In contrast, the summer months of June and July taper off, showcasing the calm before the seasonal transition. As September unfolds, the renewed vigor of the winds invites Mito's residents to embrace the upcoming changes, making it an ideal time for outdoor exploration amidst the backdrop of nature's evolving scenery.
Weather in Mito varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mito, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather. September features a warm climate, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 32°C (90°F), and an average of 23°C (74°F). However, it also sees considerable rainfall, with 176 mm (6.9 in) over 17 days and high humidity at 84%. In contrast, January brings much colder temperatures, with a minimum of -3°C (27°F), an average of 6°C (43°F), and a maximum of 15°C (60°F). Rainfall is significantly lower, with just 53 mm (2.1 in) over 6 days and humidity also reduced to 76%. For more details on January weather, you can check Mito weather in January.
September and February present starkly contrasting weather patterns. In September, temperatures range from a minimum of 15°C (60°F) to a maximum of 32°C (90°F), averaging around 23°C (74°F). The month experiences substantial precipitation, totaling 176 mm (6.9 in) over 17 days, accompanied by high humidity levels of 84%. In contrast, February features much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 18°C (65°F), averaging only 6°C (44°F). Precipitation in February is significantly lower, with just 50 mm (2.0 in) falling across 8 days and humidity at a more comfortable 75%. For more insights into the conditions during this month, you can explore Mito weather in February.
September weather can be characterized by warm temperatures, with minimums around 15°C and maximums reaching up to 32°C, making it a month of significant heat. However, it also experiences high humidity levels at 84%, alongside substantial rainfall totaling 176 mm over 17 days. In contrast, March marks the transition to cooler weather, with temperatures ranging from a chilly minimum of 0°C to a maximum of 20°C. Although March sees slightly less rainfall at 150 mm over 11 days, the humidity is more comfortable at 72%. For a detailed overview of March's weather, you can visit Mito weather in March.
In comparing the weather between September and April, there are notable differences in temperature and humidity levels. September typically boasts warmer conditions, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 32°C (90°F) and an average of 23°C (74°F). In contrast, April begins much cooler, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 23°C (74°F), averaging only 13°C (56°F). Additionally, September experiences higher humidity at 84%, compared to April’s 73%, contributing to a more muggy atmosphere during the former. Rainfall is also more frequent in September, with 176 mm (6.9 in) over 17 days, while April sees less precipitation at 129 mm (5.1 in) across 11 days. For more details on April weather, you can check Mito weather in April.
In September, the weather tends to be warmer and more humid than in May, with average temperatures reaching 23°C (74°F) compared to May's average of 18°C (65°F). September experiences a higher maximum temperature of 32°C (90°F), while May peaks at 27°C (82°F). Additionally, September sees more rainfall, with 176 mm (6.9 in) over 17 days, whereas May has 143 mm (5.6 in) of rain over just 12 days. Despite the slightly lower humidity in May at 80%, both months are characterized by their warm and sometimes wet climates. For more detailed weather information, you can visit Mito weather in May.
In comparing the weather of September and June, one can observe a few notable differences. September typically experiences slightly higher temperatures, with average highs reaching 32°C (90°F), compared to June's average maximum of 30°C (86°F). Both months start with a minimum temperature of around 15°C, but September tends to feel warmer overall. Additionally, September sees more precipitation, with 176 mm (6.9 in) over 17 days, while June has 155 mm (6.1 in) spread over 14 days. Humidity levels are also quite similar, with September at 84% and June slightly higher at 87%. For a more detailed perspective on June weather, you can check Mito weather in June.
When comparing the weather in September and July, it's clear that both months offer warm temperatures, but with some notable differences. September features a minimum temperature of 15°C (60°F) and an average of 23°C (74°F), while July is generally warmer, with a minimum of 19°C (66°F) and an average of 24°C (76°F). Despite the slightly cooler temperatures, September experiences more rain, with 176 mm (6.9 in) of precipitation over 17 days compared to July’s 209 mm (8.2 in) over 19 days. Additionally, humidity levels are higher in July at 92% compared to September's 84%. For a closer look at July's weather patterns, you can refer to this link: Mito weather in July.
In comparing the weather between September and August, September tends to be slightly cooler, with a minimum temperature of 15°C (60°F) and an average of 23°C (74°F), compared to August's minimum of 19°C (67°F) and average of 26°C (80°F). The maximum temperatures are also marginally lower in September, peaking at 32°C (90°F) versus August's 33°C (92°F). Precipitation increases notably in September, with 176 mm (6.9 in) occurring over 17 days, compared to August's 109 mm (4.3 in) over 13 days. Humidity levels are high in both months, but are slightly lower in September at 84% compared to August's 90%. For a more detailed look at August weather patterns, check out Mito weather in August.
September and October present a noticeable shift in weather patterns. In September, temperatures start warm with a minimum of 15°C (60°F) and maximum highs reaching up to 32°C (90°F), alongside considerable humidity averaging 84%. The month is marked by moderate rainfall, receiving 176 mm (6.9 in) over approximately 17 days. In contrast, October sees cooler temperatures with a minimum of 10°C (51°F) and a more moderate average high of 29°C (85°F). While the average humidity drops slightly to 80%, rainfall increases, totaling 258 mm (10.2 in) over 16 days. For more details on October weather, check out Mito weather in October.
In September, the weather tends to be significantly warmer, with average temperatures reaching 23°C (74°F) and highs peaking at 32°C (90°F). The month is also quite humid, averaging 84% humidity and bringing considerable rainfall of 176 mm (6.9 in) over 17 days. In contrast, November sees a notable drop in temperatures, with averages around 14°C (57°F) and maximums of 22°C (72°F). Rainfall decreases to 102 mm (4.0 in) spread over just 10 days, and humidity levels drop to 77%. For more specific information on November weather, you can check Mito weather in November.
In September, the weather is warm and humid, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 32°C (90°F), coupled with high humidity levels at 84%. This month typically sees about 176 mm (6.9 in) of precipitation over 17 days, making it one of the wetter months of the year. In contrast, December brings a significant drop in temperatures; the average ranges from 0°C (33°F) at night to a mild 20°C (68°F) during the day. With only 73 mm (2.9 in) of precipitation spread over 8 days and lower humidity at 77%, December offers a much drier and cooler climate. For more details on winter conditions, check out Mito weather in December.
As September unfolds in Mito, the weather begins to shift notably from the balmy summer heat, bringing a refreshing change to the atmosphere. With a comfortable average temperature around 23°C (74°F), the days are warm yet more bearable, especially compared to the peak summer months. This period also marks a significant increase in precipitation, with frequent cloudy days and higher humidity levels, leading to approximately 17 days of rain throughout the month. The blend of warmth and moisture not only nurtures the lush landscapes but also hints at the approaching autumn. For a deeper dive into Mito's climate patterns and how they compare across the year, visit Mito Climate.