Last updated: August 21, 2025
In Matsuyama, Japan, January presents a chilly ambiance characterized by a maximum temperature of 15°C (59°F) and an average of 5°C (42°F), occasionally dipping to a minimum of -4°C (25°F). During this month, residents and visitors can expect approximately 60 mm (2.4 in) of rainfall across an average of 9 days, contributing to the region's humid conditions with an average humidity level of 74%. This blend of cool temperatures and moisture creates a unique winter atmosphere perfect for exploring Matsuyama's cultural treasures while bundling up for warmth.
In Matsuyama, Japan, January brings a crisp chill that marks the heart of winter, with temperatures ranging from a biting low of -4°C (25°F) to a mild high of 15°C (59°F). The average temperature hovers around 5°C (42°F), creating a dramatic contrast to the warmer months that follow. As winter progresses into February, temperatures remain similarly frigid, yet show a slight upward trend, hinting at the approaching spring with averages climbing to 6°C (43°F). Each month's rise in temperatures illustrates the region's transition from the cold grip of winter through the early anticipation of spring, culminating in a delightful warmth as summer approaches. The gentle shifts in Matsuyama’s temperatures not only define the climate but also shape the local culture and activities, from cozy indoor gatherings in January to the vibrant outdoor experiences expected in the upcoming months.
In January, Matsuyama experiences a relatively mild and moderate start to the year, with an average precipitation of 60 mm (2.4 in) over approximately 9 days. This amount marks a lighter month in contrast to the following February, which sees a noticeable increase to 90 mm (3.6 in). As winter continues to transition into spring, precipitation gradually escalates, peaking dramatically in July at 374 mm (14.7 in), highlighting the region's distinct wet season. Interestingly, January's precipitation is closely mirrored by November’s, each contributing just enough moisture to sustain the landscape without overwhelming it. The pattern indicates a clear seasonal trend, where Matsuyama's climate shifts from drier beginnings to a lush, rain-soaked summer.
In January, Matsuyama, Japan, experiences an average humidity of 74%, setting the tone for a winter characterized by slightly damp conditions. As the seasons transition, February and March maintain a steady humidity of 70%, providing a brief reprieve from the peaks that emerge later in the year. The warmth of spring sees a rise to 76% in April, followed by a notable increase to 82% in May, as the region gears up for the humid summer months. June marks the onset of true humidity, soaring to 86%, which escalates further in July to an impressive 91%, making it the most humid month of the year. Although humidity slightly decreases to 88% in August, it remains high, ensuring that residents feel the lingering warmth. September and October see a gradual decline, with humidity levels at 85% and 82%, respectively, before wrapping up the year with November and December at 79% and 77%. This cyclical pattern highlights Matsuyama's humid climate, particularly peaking during the summer, while winter months remain relatively more temperate.
In Matsuyama, Japan, January presents a moderate UV Index of 4, with a burn time of just 30 minutes. This marks the start of a gradual upward trend as winter transitions to spring. As February rolls in, the UV Index rises to 6, indicating higher exposure levels. By March, residents experience a significant increase to 9, transitioning into the very high category, with a swift decline in burn time to 15 minutes. The UV Index peaks in May, reaching an extreme level of 12, where caution is essential as burn times shrink to a mere 10 minutes. The summer months maintain this heightened UV exposure, often hovering around 12 before tapering off in the fall. Thus, being aware of these fluctuations can help residents and visitors enjoy the sun safely throughout the year. For more detailed information, visit Matsuyama UV Index.
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In Matsuyama, Japan, the sunshine begins its gentle ascent in January with 191 hours, gradually illuminating the landscape as winter gives way to spring. February experiences a notable increase to 237 hours of sunlight, setting the stage for March, which welcomes 274 hours. As spring arrives, the days lengthen further, peaking in May with a vibrant 305 hours of sunshine. This trend continues into the summer months, with June, July, and August boasting abundant daylight, reaching a high of 313 hours in August. However, as autumn approaches, the hours of sunshine begin to ebb, with September seeing 269 hours and October slightly lower at 260 hours. The year concludes with November and December witnessing a return to reduced sunlight, wrapping up a dynamic cycle of brightness that defines Matsuyama's climate rhythm.
In Matsuyama, Japan, the likelihood of sunny weather in January stands at 44%, making it one of the brighter months during the winter season. This chance is slightly lower than February, which enjoys a 50% probability of sunshine, but it aligns closely with the 44% chance seen in April. Notably, January transitions into a period where sunshine becomes increasingly elusive, as the likelihood dips dramatically in the summer months with a mere 23% to 28% during June through August. Interestingly, the probability of sunny days rises again as autumn approaches, peaking at 58% in October. Overall, while January offers a fair chance of clear skies, it’s clear that the patterns of sunlight shift dramatically as the months progress, highlighting the ever-changing weather dynamics in this beautiful coastal city.
In Matsuyama, Japan, the daylight duration begins at a modest 10 hours in January and holds steady through February. As spring arrives in March, daylight lengthens to 11 hours, gradually increasing further to a radiant 13 hours by April and May. The longest days of the year are found in June and July, with 14 hours of sunlight brightening the landscape. As summer transitions to autumn, the daylight gradually recedes, with August still enjoying 13 hours before tapering off to 12 hours in September. The decline continues, allowing for 11 hours in October, followed by a quick drop to 10 hours in November and finally to 9 hours in December. This cyclical pattern showcases Matsuyama's shifting seasons, offering a harmonious blend of light and darkness throughout the year.
In Matsuyama, Japan, the January wind sets the tone for a breezy start to the year, with an average speed of 3.2 m/s (or 7 mph). This gentle gust is followed by a slight increase in February, where winds pick up to 3.5 m/s (8 mph), hinting at a transitional period as winter slowly releases its grip. As spring approaches, the winds begin to mellow significantly, dipping to a comfortable 2.7 m/s in both March and April, before reaching an even calmer 2.6 m/s in May. The trend continues into the summer months, with June and July seeing a notable drop to around 1.7 m/s (4 mph) and 1.9 m/s (4 mph), leading into the serene days of August and early autumn, where the air remains light. By November, there’s a lift in wind activity to 2.9 m/s, and December brings back the briskness with 3.5 m/s, echoing January’s start. Overall, the wind patterns in Matsuyama suggest a clear seasonal rhythm, where the vitality of winter gradually softens into the tranquility of summer, only to rejuvenate again with the onset of winter.
Weather in Matsuyama varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Matsuyama, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures range from a chilly -4°C (25°F) at night to a mild 15°C (59°F) during the day, with an average of around 5°C (42°F). The month also sees about 60 mm (2.4 in) of precipitation across 9 days, paired with relatively high humidity at 74%. In contrast, February experiences slightly warmer conditions, with temperatures ranging from -4°C (24°F) to a maximum of 19°C (67°F) and an average of 6°C (43°F). Precipitation increases to 90 mm (3.6 in) over 11 days, and humidity drops slightly to 70%. For a more detailed look at the weather patterns, you can check Matsuyama weather in February.
In January, the weather tends to be quite chilly, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 15°C (59°F), averaging around 5°C (42°F). The month sees about 60 mm (2.4 in) of precipitation over approximately 9 days, coupled with a humidity level of 74%. In contrast, March brings a noticeable warming trend, with temperatures ranging from a minimum of 0°C (33°F) to a pleasant maximum of 20°C (69°F), averaging 10°C (50°F). Precipitation increases to 129 mm (5.1 in) over about 12 days, and humidity drops slightly to 70%. For a closer look at what to expect, check out Matsuyama weather in March.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 15°C (59°F), accompanied by an average temperature of 5°C (42°F). The month experiences around 60 mm (2.4 in) of precipitation over 9 days, and the humidity sits at 74%. In contrast, April brings a more temperate climate, featuring minimum temperatures of 2°C (36°F) and maximums reaching 24°C (75°F), with an average temperature of 14°C (57°F). However, April is wetter, with precipitation totaling 135 mm (5.3 in) over 10 days, while humidity rises slightly to 76%. For a detailed view of the April weather in Matsuyama, you can check out Matsuyama weather in April.
January in Matsuyama is characterized by cool temperatures, with a minimum of -4°C (25°F) and an average of 5°C (42°F), reaching a maximum of 15°C (59°F). The month sees about 60 mm (2.4 in) of precipitation over 9 days, accompanied by relatively high humidity at 74%. In contrast, May offers a significant warmth boost, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 28°C (82°F), averaging 18°C (65°F). Precipitation increases to 153 mm (6.0 in), spread over 11 days, and humidity rises to 82%. For more detailed information about the weather in May, you can visit Matsuyama weather in May.
In January, the weather is significantly colder, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 15°C (59°F), and an average temperature of 5°C (42°F). The month experiences about 60 mm (2.4 in) of precipitation over 9 days, accompanied by a humidity level of 74%. In contrast, June brings much warmer conditions, with temperatures ranging from a minimum of 14°C (57°F) to a peak of 30°C (86°F) and an average of 22°C (72°F). June is also wetter, receiving approximately 215 mm (8.5 in) of rainfall over 14 days, along with increased humidity levels of 86%. For more detailed information, you can visit Matsuyama weather in June.
In January, the weather in Matsuyama is quite chilly, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 15°C (59°F) and an average of about 5°C (42°F). The month sees around 60 mm (2.4 in) of precipitation over approximately 9 days, and the humidity is relatively high at 74%. In contrast, July offers a dramatic shift, characterized by warm temperatures that range from a minimum of 18°C (65°F) to a sweltering maximum of 33°C (91°F), with an average temperature of 26°C (79°F). Precipitation significantly increases to 374 mm (14.7 in), falling over 19 days, and the humidity rises to a humid 91%, creating a tropical atmosphere. For more details, you can visit Matsuyama weather in July.
When comparing the weather between January and August, the contrast is quite striking. January experiences much cooler temperatures, with a minimum of -4°C (25°F) and an average of around 5°C (42°F), while August boasts a minimum temperature of 20°C (68°F) and an average of 27°C (81°F). Precipitation is also significantly higher in August, with 197 mm (7.7 in) over approximately 15 days, compared to January's 60 mm (2.4 in) over 9 days. Additionally, humidity levels rise notably in August, reaching 88%, compared to the more moderate 74% in January. For more details on August weather in Matsuyama, visit Matsuyama weather in August.
January and September weather in Matsuyama showcase a striking contrast. In January, temperatures range from a chilly -4°C (25°F) at night to a mild 15°C (59°F) during the day, with an average of 5°C (42°F). The month experiences around 60 mm (2.4 in) of precipitation over 9 days, and humidity levels hover at 74%. In stark contrast, September brings warmth with temperatures ranging from a minimum of 14°C (58°F) to a scorching maximum of 33°C (91°F), averaging 24°C (75°F). This month sees significantly higher precipitation at 212 mm (8.4 in) over 15 days and increased humidity at 85%. For more details, you can check Matsuyama weather in September.
In contrast to January, which experiences much colder temperatures with averages around 5°C (42°F) and a maximum of 15°C (59°F), October enjoys milder conditions with temperatures ranging from a minimum of 8°C (47°F) to a warm average of 19°C (66°F) and highs reaching up to 29°C (84°F). January also sees less precipitation, averaging 60 mm (2.4 in) over 9 days, while October is significantly wetter, with 204 mm (8.0 in) spread over 10 days. Additionally, humidity levels are higher in October at 82%, compared to January's 74%. For a more detailed look at the October climate, visit Matsuyama weather in October.
In comparison to January, November typically enjoys milder temperatures, with average highs reaching up to 25°C (77°F) compared to January's peak of 15°C (59°F). The minimum temperatures in November are also warmer, starting at 3°C (37°F) versus January's chillier -4°C (25°F). Precipitation levels are similar between the two months, with November seeing about 61 mm (2.4 in) over 8 days, while January experiences 60 mm (2.4 in) across 9 days. Additionally, humidity in November is slightly higher at 79%, compared to January's 74%. For more detailed information, you can check Matsuyama weather in November.
In comparing the weather between January and December, January tends to be colder with minimum temperatures dropping to -4°C (25°F) compared to December's minimum of -1°C (31°F). The average temperature in January is around 5°C (42°F), which is lower than December's average of 8°C (46°F). December also experiences slightly higher maximum temperatures, reaching up to 22°C (71°F), while January peaks at 15°C (59°F). Additionally, precipitation is slightly higher in December at 69 mm (2.7 in) over 10 days, compared to January's 60 mm (2.4 in) over 9 days. Humidity levels are comparable, with January averaging 74% and December slightly higher at 77%. For more information, you can check Matsuyama weather in December.
January in Matsuyama marks a notable shift in weather compared to other months, as the city experiences a chill that often feels more pronounced due to its higher humidity levels. With temperatures averaging around 5°C, the days are significantly cooler, occasionally dipping below freezing at night. Rainfall is also more frequent this month, with about nine days of precipitation, adding a layer of dampness to the winter air. This combination of cooler temperatures and increased humidity creates a unique atmosphere that contrasts starkly with the warmth of the spring and summer months. For those interested in exploring these seasonal differences further, more details can be found at Matsuyama Climate.