Last updated: August 21, 2025
October in Matsuyama, Japan, presents a delightful mix of mild temperatures and significant rainfall, making it a month of vibrant autumn transition. The maximum temperature reaches a comfortable 29°C (84°F), while the average hovers around 19°C (66°F), allowing for pleasant outdoor activities. However, evenings can get brisk as temperatures dip to a minimum of 8°C (47°F). This month witnesses approximately 204 mm (8.0 in) of rain over 10 days, contributing to the region's lush landscapes and dense humidity levels at 82%. Whether you're exploring historic sites or enjoying seasonal delicacies, October promises an invigorating experience in Matsuyama.
In Matsuyama, Japan, October ushers in a delightful shift in temperatures, marking the transition into cooler months. With a minimum of 8°C (47°F) and an average temperature of 19°C (66°F), the city's climate becomes refreshingly mild, perfect for autumn activities. The daytime can still be quite warm, peaking at 29°C (84°F), which allows for lingering outdoor exploration under the softening sun. This gradual cooling trend follows the sweltering summer months, where temperatures often soared above 30°C (86°F). As October progresses, residents and visitors alike can enjoy the vibrant fall foliage against the backdrop of a pleasantly crisp atmosphere, making it an ideal time to experience the rich cultural offerings of this charming city.
In October, Matsuyama experiences a significant but manageable amount of precipitation, with 204 mm (8.0 in) of rain falling over approximately 10 days. This marks a slight decline compared to the preceding month of September, which received 212 mm (8.4 in) over the same number of days. The arrival of autumn signals a shift from the heavy summer rains, particularly the July peak of 374 mm. With the transition into this season, October's weather offers a refreshing balance, as rain is more intermittent, allowing for clearer days and vibrant fall foliage to emerge, enhancing the overall charm of the region.
As October rolls into Matsuyama, Japan, humidity levels settle at a comfortable 82%, marking a slight decrease from the sweltering summer months that peak in July at 91%. This month, the humidity is reminiscent of the early spring months, which hover around 70%, but it contrasts significantly with the high humidity of preceding summer and early autumn. Following the peak of 86% in June, Matsuyama's air begins to lose some of its tropical heaviness, offering residents and visitors a refreshing change. As autumn unfolds, the moderate humidity contributes to the crisp, pleasant atmosphere that characterizes this time of year, inviting outdoor exploration and appreciation of the beautiful fall foliage.
As October unfolds in Matsuyama, Japan, residents and visitors alike experience a noticeable shift in the UV Index, which stands at 8—indicating a very high exposure level. This represents a slight decline from the extreme UV conditions observed in the peak summer months, where values soared to 12. However, caution is still advised, as the burn time drops to a brisk 15 minutes. This trend from summer’s intensity highlights the importance of sun protection even as temperatures begin to cool. The preceding months have shown a pattern of increasingly high UV levels from March’s 9 to October’s current reading, emphasizing that vigilance is crucial throughout the year. Whether basking in the autumn sun or engaging in outdoor activities, staying informed about the UV Index is essential. For more insights on UV levels and how they impact health, explore the Matsuyama UV Index.
UV Risk Categories
In October, Matsuyama basks in a golden glow of 260 hours of sunshine, marking a gentle shift as the city transitions into the cooler months. This fall month showcases a noticeable decrease from August's sun-drenched peak of 313 hours, yet retains a brightness that surpasses the earlier winter months. As daylight gradually wanes, October maintains a vibrant energy, bridging the warmth of summer with the mellow hues of autumn. The sunshine begins to taper off, but the crisp blue skies still invite residents and visitors to enjoy the stunning landscapes, making this month a delightful prelude to the winter.
In Matsuyama, Japan, the month of October stands out with a noticeable 58% chance of sunny weather, marking it as one of the sunniest months of the year. This is a significant increase compared to earlier months, particularly from the low percentages seen during the summer, where sunshine dips to around 23-28%. As the season transitions from the sweltering heat of summer to the cooler autumn days, October's bright forecast not only uplifts spirits but also invites locals and tourists alike to enjoy the city's beautiful landscapes. With sunshine on the rise, October offers delightful opportunities for outdoor adventures and sightseeing, making it a fabulous time to explore Matsuyama.
In October, Matsuyama, Japan experiences a shift in daylight duration, offering approximately 11 hours of light each day. As the autumn season begins, daylight gradually diminishes from the summer peaks of 14 hours in June and July. This month marks a transition from the vibrant brightness of summer, with its longer days, to the crisper, shorter days of winter, dipping to just 9 hours in December. Notably, October's daylight is on par with early spring months, hinting at the cyclical nature of the seasons in this picturesque city. As the leaves start to change and the air turns cooler, residents and visitors alike can embrace the beautiful twilight that comes with the season's progression.
As October sweeps into Matsuyama, Japan, the winds begin to whisper with a gentle rhythm, averaging 2.2 m/s (5 mph)—a slight uptick from the preceding months. This seasonal transition marks a shift from the calmer breezes of summer, with September's winds barely rustling at 2.1 m/s (5 mph). The October air tends to invigorate the surroundings, preparing the city for the cooler months ahead, while still offering a mild breeze that invites outdoor exploration. As the month progresses, the winds will steadily begin to pick up, hinting at the more brisk conditions of winter that lie just around the corner. With November following suit at 2.9 m/s (6 mph), the annual cycle of Matsuyama’s wind serves as a reminder of nature’s evolving patterns, providing a serene backdrop to the vibrant autumn scenery.
Weather in Matsuyama varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Matsuyama, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present contrasting weather patterns. October boasts milder temperatures, with averages around 19°C (66°F) and highs reaching up to 29°C (84°F), making it a pleasant month for outdoor activities. However, it also experiences significant rainfall, totaling 204 mm (8.0 in) over about 10 days, and a high humidity level of 82%. In contrast, January brings much colder conditions, with average temperatures dropping to around 5°C (42°F) and nighttime lows declining to as frigid as -4°C (25°F). Precipitation is considerably less, at just 60 mm (2.4 in) over 9 days, and humidity decreases to 74%. For a more detailed look at January weather, visit Matsuyama weather in January.
In comparing the weather between October and February, there's a stark contrast in temperatures and conditions. October boasts milder temperatures with a minimum of 8°C (47°F), averaging around 19°C (66°F), and reaching a pleasant maximum of 29°C (84°F). Conversely, February experiences much colder weather, with temperatures plummeting to a minimum of -4°C (24°F) and an average of just 6°C (43°F), peaking at 19°C (67°F). Additionally, October is notably wetter, receiving 204 mm (8.0 in) of precipitation over approximately 10 days, while February has significantly less rainfall at 90 mm (3.6 in) across 11 days. Humidity levels also differ, with October at 82% and February at a more comfortable 70%. For more detailed information on February weather, you can visit Matsuyama weather in February.
In comparing the weather of October and March, October presents significantly warmer temperatures, with a minimum of 8°C (47°F) and an average high reaching 29°C (84°F). In contrast, March starts much cooler, with temperatures dropping to a minimum of 0°C (33°F) and an average high of only 20°C (69°F). Additionally, October sees higher precipitation at 204 mm (8.0 in) over approximately 10 days, compared to March's 129 mm (5.1 in) spread over 12 days. The humidity is also notably higher in October at 82%, while March has a more moderate humidity level of 70%. For more detailed information, you can check out Matsuyama weather in March.
In comparing October and April weather, October typically offers warmer temperatures, with a minimum of 8°C (47°F) and an average high of 29°C (84°F), while April sees cooler conditions, with a minimum of 2°C (36°F) and a maximum of 24°C (75°F). Precipitation is higher in October, totaling 204 mm (8.0 in) over 10 days, compared to April's 135 mm (5.3 in) over the same number of days. Additionally, October experiences slightly higher humidity at 82%, while April holds a more moderate level at 76%. For more detailed information, you can visit Matsuyama weather in April.
In comparing the weather of October and May, both months exhibit mild temperatures, with October showing a slightly wider range: with minimum temperatures around 8°C (47°F) to maximums of 29°C (84°F) compared to May's 7°C (44°F) to 28°C (82°F). The average temperatures are fairly similar, with October averaging 19°C (66°F) and May at 18°C (65°F). While October experiences higher precipitation at 204 mm (8.0 in) over approximately 10 days, May sees less rain at 153 mm (6.0 in) over a slightly longer span of 11 days. Both months also share a consistent humidity level of 82%. For a closer look at the specifics of May weather, you can explore Matsuyama weather in May.
October and June in Matsuyama exhibit notable differences in weather patterns. October sees average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 29°C (84°F), offering a comfortable climate with an average of 19°C (66°F). However, it also experiences significant rainfall, with 204 mm (8.0 in) over approximately 10 days and humidity at 82%. In contrast, June boasts warmer temperatures, with a minimum of 14°C (57°F) and a maximum of 30°C (86°F), and an average of 22°C (72°F). While June has slightly higher precipitation at 215 mm (8.5 in) over 14 days, it has a slightly higher humidity level of 86%. For more details on the June weather, you can visit Matsuyama weather in June.
In comparing the weather of October and July, we see notable differences in temperature and precipitation. October has a milder range, with temperatures varying from a minimum of 8°C (47°F) to a maximum of 29°C (84°F) and an average of 19°C (66°F). In contrast, July is considerably warmer, with temperatures ranging from 18°C (65°F) to 33°C (91°F) and an average of 26°C (79°F). Regarding precipitation, October receives 204 mm (8.0 in) over approximately 10 days, while July is wetter, with 374 mm (14.7 in) falling over about 19 days. Additionally, humidity levels are slightly higher in July at 91%, compared to 82% in October. For more details on July's weather, you can refer to Matsuyama weather in July.
In comparing the weather of October and August, October tends to be cooler with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 29°C (84°F), whereas August is notably warmer, featuring average temperatures between 20°C (68°F) and 33°C (91°F). Both months experience significant precipitation, with October receiving 204 mm (8.0 in) over 10 days and August slightly less at 197 mm (7.7 in) over 15 days. Humidity levels are also higher in August at 88%, compared to October's 82%. For a more detailed look at the August climate, you can check out Matsuyama weather in August.
In comparing the weather of October to that of September, we see a notable shift in temperatures and precipitation patterns. October experiences lower minimum temperatures, averaging around 8°C (47°F) compared to September's milder 14°C (58°F). The average maximum temperature also drops to 29°C (84°F) in October from September’s warmer 33°C (91°F). While both months have significant rainfall, October sees precipitation of 204 mm (8.0 in) over 10 days, slightly less than September's 212 mm (8.4 in) over 15 days. Humidity remains relatively high, with October at 82% compared to September's 85%. For a more detailed look at September's climate, you can check Matsuyama weather in September.
October and November present a noticeable shift in weather patterns. In October, temperatures are warmer with a minimum of 8°C (47°F), an average of 19°C (66°F), and a maximum reaching 29°C (84°F). However, this month also experiences more precipitation, totaling 204 mm (8.0 in) over approximately 10 days, accompanied by a higher humidity level of 82%. In contrast, November sees cooler temperatures, with a minimum of 3°C (37°F) and an average of 13°C (55°F), peaking at 25°C (77°F). Rainfall significantly decreases to 61 mm (2.4 in) over 8 days, and humidity drops slightly to 79%. For more detailed insights on November weather, you can check out Matsuyama weather in November.
October and December present stark contrasts in weather patterns. In October, temperatures range from a mild 8°C (47°F) at night to a warm 29°C (84°F) during the day, with an average of 19°C (66°F). This month also sees a considerable amount of rain, totaling 204 mm (8.0 in) across about 10 days, combined with high humidity levels at 82%. In contrast, December's climate is much cooler, with temperatures dropping to a minimum of -1°C (31°F) and peaking at 22°C (71°F), averaging 8°C (46°F). Additionally, precipitation decreases significantly to 69 mm (2.7 in) over the same number of days, and humidity is slightly lower at 77%. For more details on December's weather, you can visit Matsuyama weather in December.
As October unfolds in Matsuyama, the transition to cooler days becomes evident, characterized by milder temperatures and an increase in humidity. Unlike the sweltering summer months, where heat often dominates, October offers a refreshing respite with average temperatures making outdoor activities delightful. While the city experiences about 10 days of precipitation, the rain tends to nourish the vibrant autumn foliage, adding to the scenic beauty of the area. This month serves as a gentle reminder of the changing seasons, making it an ideal time to explore the charming landscapes of Matsuyama. For a detailed insight into the weather patterns throughout the year, visit Matsuyama Climate.