Last updated: August 21, 2025
In December, Matsuyama, Japan, experiences a varied climate, with temperatures ranging from a maximum of 22°C (71°F) to a chilly minimum of -1°C (31°F). The average temperature sits at a comfortable 8°C (46°F), perfect for enjoying the seasonal ambiance. With an average precipitation of 69 mm (2.7 in) over 10 days, expect some rainy moments amidst the chilly weather. Humidity remains relatively high at 77%, adding to the crisp feel of the air. Overall, December in Matsuyama offers a blend of cool temperatures and refreshing rainfall, marking the transition into winter.
In Matsuyama, Japan, December ushers in the chill of winter, with temperatures ranging from a brisk -1°C (31°F) at night to a mild 22°C (71°F) during the day. This month marks a transition from the cooler autumn temperatures: while November's average was 13°C (55°F), December cools down to an average of 8°C (46°F), indicating a clear shift as the year draws to a close. Remarkably, the maximum temperature still manages to reach a comfortable 22°C, suggesting that sunny days can still brighten the colder season. This blend of wintry nights and pleasant daytime highs creates a unique charm, making December a delightful time to explore Matsuyama's scenic landscape and vibrant culture.
In Matsuyama, Japan, December ushers in a modest increase in precipitation, with around 69 mm (2.7 in) of rainfall spread across about 10 days. This marks a subtle uptick compared to the previous month, November, which experienced significantly drier conditions with only 61 mm of rain over 8 days. As the city transitions from autumn to winter, December’s rainfall contributes to the overall trend of rising precipitation that peaks during the summer months. With each passing month, precipitation steadily escalates, especially hitting a high of 374 mm (14.7 in) in July. December serves as a gentle reminder of the wetter seasons ahead while maintaining a relatively mild and manageable rainfall pattern.
In December, Matsuyama, Japan experiences a moderate humidity level of 77%, which shows a slight decline from the summer's peak levels. The city's humidity begins its descent after reaching a summer high of 91% in July, followed by a gradual decrease through autumn. Notably, the humidity tapers off from 82% in October to 79% in November before settling at 77% in December. This trend highlights a transitional climate as the region shifts from the sweltering summer months to cooler winter, maintaining a comfortable yet noticeable humidity level that characterizes the end of the year in Matsuyama.
In December, Matsuyama, Japan, enters a period of moderate sun exposure, with a UV Index of 4 and a burn time of approximately 30 minutes. This relatively lower UV Index comes as a contrast to the previous summer months, where the UV levels soared to an extreme 12, necessitating caution and minimal sun exposure to prevent skin damage. As the year wraps up, residents and visitors can enjoy outdoor activities with a bit more freedom, but still should remain mindful of the sun. For those planning their sun safety strategies, this provides a perfect opportunity to stay informed by checking the Matsuyama UV Index for daily updates.
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In December, Matsuyama, Japan enjoys a notable 228 hours of sunshine, providing a serene transition into the new year. While this marks a decline from the peak of 313 hours in August, the city still basks in ample sunlight compared to the winter months ahead. The steady trend of decreasing daylight begins in late summer, gradually tapering off through autumn. However, December continues to hold its own, with sunshine lingering more than the earlier months of winter, such as January's 191 hours. This gentle climate allows residents and travelers alike to appreciate the softer light, making it a cherished time for outdoor activities and festive gatherings.
In December, Matsuyama experiences a 53% chance of sunny weather, marking a slight uptick from previous months like November at 50% and a notable contrast to the gloomier summer months of June and July, where sunny days lingered around 23% and 24% respectively. As the year closes, the likelihood of sunshine gradually increases, creating a cozy ambiance just in time for the festive season. This trend of gradually rising chances from autumn through winter suggests that while December may not guarantee warmth, it does offer a fair opportunity for clear skies, perfect for exploring Matsuyama's winter charm.
In Matsuyama, Japan, the daylight duration experiences a gentle ebb and flow throughout the year, with Decembers witnessing the shortest days at just 9 hours. This decline follows a pattern after the peak of 14 hours in June and July, signaling the slow retreat from summer's brightness. As the year progresses from the steady 10 hours in January and February, daylight gradually increases, peaking in the vibrant spring months of April and May. However, as autumn takes hold, the daylight diminishes, highlighting the cyclical nature of seasons. The transition into December not only marks the arrival of winter but also serves as a reminder of the longer nights that will soon envelop Matsuyama.
As December settles in Matsuyama, Japan, the average wind speed picks up slightly, reaching 3.5 m/s (8 mph), which mirrors the breezy atmosphere experienced earlier in February. This increase marks a shift from the calmer summer months, where winds dipped to their lowest in June at just 1.7 m/s (4 mph). Unlike the preceding months characterized by gentle breezes, December invites a more invigorating air flow, reminiscent of the spring and winter transition. Overall, the windy pattern showcases a subtle increase as the year draws to a close, hinting at a refreshing farewell to the year.
Weather in Matsuyama varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Matsuyama, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in Matsuyama range from a minimum of -1°C (31°F) to a maximum of 22°C (71°F), with an average of 8°C (46°F). The month sees a total precipitation of 69 mm (2.7 in) over about 10 days, accompanied by a humidity level of 77%. In contrast, January experiences cooler temperatures, with minimums of -4°C (25°F) and maximums of 15°C (59°F), resulting in a lower average temperature of 5°C (42°F). Precipitation is slightly reduced at 60 mm (2.4 in) over 9 days, while humidity drops to 74%. For more detailed information, you can visit Matsuyama weather in January.
In comparing the weather between December and February, we observe notable differences in temperature and precipitation. December features a wider temperature range with a minimum of -1°C (31°F) and a maximum of 22°C (71°F), averaging around 8°C (46°F). In contrast, February is slightly cooler, with temperatures ranging from a minimum of -4°C (24°F) to a maximum of 19°C (67°F), and an average of 6°C (43°F). Regarding precipitation, December receives about 69 mm (2.7 in) over approximately 10 days, while February sees a slight increase in precipitation to 90 mm (3.6 in) across 11 days. Additionally, December has higher humidity levels at 77%, compared to February's 70%. For a more detailed look at February weather patterns, you can visit Matsuyama weather in February.
December and March weather exhibit notable differences in both temperature and precipitation patterns. In December, temperatures range from a minimum of -1°C (31°F) to a maximum of 22°C (71°F), with an average around 8°C (46°F). The month experiences about 69 mm (2.7 in) of precipitation over 10 days, alongside a relatively high humidity level of 77%. In contrast, March sees slightly warmer temperatures, with a minimum of 0°C (33°F) and a maximum of 20°C (69°F), averaging at 10°C (50°F). However, March is wetter, accumulating 129 mm (5.1 in) of precipitation over 12 days, while humidity decreases to 70%. For more detailed insights, check out Matsuyama weather in March.
December and April present distinct weather patterns. In December, temperatures range from a chilly -1°C (31°F) at night to a milder 22°C (71°F) during the day, with an average of 8°C (46°F). The month experiences 69 mm (2.7 in) of precipitation over about 10 days, along with a humidity level of 77%. In contrast, April brings warmer conditions, with nighttime lows of 2°C (36°F) and daytime highs reaching up to 24°C (75°F), and an average temperature of 14°C (57°F). However, it also sees increased precipitation, totaling 135 mm (5.3 in) over the same number of days, while maintaining a relatively similar humidity level of 76%. For a detailed look at April weather, visit Matsuyama weather in April.
In December, temperatures in Matsuyama range from a chilly -1°C (31°F) at night to a comfortable 22°C (71°F) during the day, with an average of 8°C (46°F). The month experiences about 69 mm (2.7 in) of precipitation over 10 days and a relative humidity of 77%. In contrast, May sees a significant rise in temperatures, with nightly lows of 7°C (44°F) and daytime highs averaging 28°C (82°F), culminating in an average temperature of 18°C (65°F). However, May is also wetter, with 153 mm (6.0 in) of precipitation over 11 days, and humidity slightly higher at 82%. For more detailed information, you can check Matsuyama weather in May.
December weather is characterized by much cooler temperatures, with lows around -1°C (31°F) and average highs reaching up to 22°C (71°F). The month sees about 69 mm (2.7 in) of precipitation spread over approximately 10 days, coupled with a humidity level of 77%. In contrast, June brings significantly warmer conditions, with minimum temperatures around 14°C (57°F) and maximum averages soaring to 30°C (86°F). This month experiences higher rainfall, totaling 215 mm (8.5 in) over about 14 days, and the humidity rises to 86%. For a more detailed look at weather patterns during this time, check out Matsuyama weather in June.
When comparing the weather in December and July, it becomes clear that these months offer starkly different climates. December typically experiences mild temperatures, with averages around 8°C (46°F) and a maximum of 22°C (71°F), alongside relatively low precipitation of 69 mm (2.7 in) over about 10 days. Humidity is moderate at 77%. In contrast, July boasts significantly warmer conditions, with average temperatures reaching 26°C (79°F) and maximums of 33°C (91°F). Precipitation sharply increases during this month, totaling 374 mm (14.7 in) over approximately 19 days, and humidity also rises to a steamy 91%. For more insights into the warm and wet conditions of July, visit Matsuyama weather in July.
When comparing the weather in December and August, notable differences emerge in both temperature and precipitation. December experiences a cooler climate with temperatures ranging from a chilly -1°C to a mild average of 8°C, characterized by a maximum of 22°C. In contrast, August boasts significantly warmer temperatures, with minimums around 20°C and averages hitting 27°C, peaking at a scorching 33°C. Additionally, August is marked by higher precipitation levels of 197 mm over 15 days, compared to December's 69 mm over 10 days. Humidity is also higher in August at 88%, compared to December's 77%. For more details on summer conditions in this region, you can check out Matsuyama weather in August.
In December, the weather is much cooler, with temperatures ranging from a chilling minimum of -1°C (31°F) to a mild average of 8°C (46°F) and a maximum of 22°C (71°F). In contrast, September experiences significantly warmer conditions, with temperatures starting at a minimum of 14°C (58°F), averaging 24°C (75°F), and peaking at 33°C (91°F). Furthermore, December's precipitation is relatively moderate at 69 mm (2.7 in) over about 10 days, while September sees a much higher total of 212 mm (8.4 in) across approximately 15 days, contributing to its higher humidity of 85%. For a deeper look at September weather specifics, you can check Matsuyama weather in September.
Comparing the weather in December and October reveals notable differences. In December, temperatures drop significantly, with a minimum of -1°C (31°F) and an average of around 8°C (46°F), while October enjoys milder conditions, featuring a minimum of 8°C (47°F) and an average temperature of 19°C (66°F). Additionally, October sees much higher precipitation levels, totaling 204 mm (8.0 in) compared to December's 69 mm (2.7 in), though both months experience rain on approximately 10 days. Humidity levels are also slightly higher in October at 82%, compared to December’s 77%. For more detailed information about October's weather, you can visit Matsuyama weather in October.
December weather presents a notable shift compared to November, with temperatures dipping slightly. In December, the minimum temperature drops to -1°C (31°F), while November remains milder with a minimum of 3°C (37°F). The average temperature in December is 8°C (46°F), significantly lower than November's average of 13°C (55°F), and the maximum temperature in December reaches only 22°C (71°F) compared to November's warmer peak of 25°C (77°F). Precipitation levels are slightly higher in December at 69 mm (2.7 in) over 10 days, compared to November's 61 mm (2.4 in) over 8 days. Humidity remains relatively stable, with December at 77% and November slightly higher at 79%. For further details, you can check Matsuyama weather in November.
December in Matsuyama brings a notable shift in weather patterns as the city transitions into winter. With cooler average temperatures and the occasional drop to near freezing, visitors will experience a refreshing chill that contrasts sharply with the milder months before it. The increased humidity and precipitation, with significant rainfall spread across several days, adds to the season's character, creating a picturesque landscape. Though not the wettest month, the 69 mm of rain can surprise those unprepared for the winter weather. This time of year offers a unique charm, making it an excellent time to explore Matsuyama’s rich culture and stunning scenery. For more insights on how the climate varies throughout the year, visit Matsuyama Climate.