Last updated: August 21, 2025
In Minamata, Japan, December brings a mix of cool temperatures and moderate precipitation, making it a unique winter month. The maximum temperature reaches up to 24°C (75°F), while the average hovers around 8°C (47°F), dipping to a chilly minimum of -1°C (30°F). With 90 mm (3.5 in) of rain spread across approximately 8 days, residents experience a humid atmosphere, registering humidity levels of 79%. This combination of conditions creates a vibrant yet brisk backdrop for the scenic beauty of Minamata during the holiday season.
As December settles in Minamata, Japan, the temperatures begin to dip, marking a noticeable shift from the milder autumn months. With a minimum temperature of -1°C (30°F), residents experience a taste of winter's chill, while the average temperature hovers around 8°C (47°F). This low average suggests a significant contrast to the warmer highs of previous months, with maximum temperatures reaching a comfortable 24°C (75°F). As the month progresses, the region’s climate reflects a gradual transition toward the coldest months of the year, signaling the onset of winter festivities and a cozy atmosphere. Amidst the trailing warmth from autumn, the blend of cool mornings and pleasantly mild afternoons in December truly encapsulates the charm of this coastal town as it winds down the year.
December in Minamata, Japan, sees a notable decrease in precipitation, recording 90 mm (3.5 in) over 8 days. This decline follows a particularly wet summer, with July and June experiencing significant downpours of 465 mm (18.3 in) and 342 mm (13.5 in), respectively. As the year winds down, December's rainfall marks a shift towards drier conditions, a trend mirrored in the reduced precipitation amount compared to the more saturated months preceding it. However, this lightening of rain does not mean dry winter days, as Minamata maintains an average of over a week of rainfall during the month, contributing to its lush landscapes. The gradual tapering of precipitation sets the stage for January's slightly drier start to the new year.
In December, Minamata, Japan, experiences a humidity level of 79%, marking a notable drop from the peak of 92% observed in July. This decline exemplifies a gradual decrease in humidity as the year progresses, particularly after the summer months. While December's figures remain relatively high, they reflect an overall trend of increased moisture leading up to the wet season, peaking in late spring and summer. Following the humid months, a slight reduction in humidity occurs in autumn, stabilizing into the early winter with December's levels. This seasonal shift underscores Minamata's unique climatic rhythm, where the blend of coastal influences and regional weather patterns play a significant role in shaping its humid profile throughout the year.
In December, Minamata experiences a moderate UV Index of 4, with a burn time of approximately 30 minutes under direct sunlight. This marks a notable decrease from the extreme highs of summer months, where UV levels peaked at 13 in August, requiring caution with just 10 minutes of exposure. The transition from the peak summer months to the winter season reflects a gradual decline in UV radiation, offering a more forgiving environment for outdoor activities. However, as the year closes, it's still wise to remain aware of UV levels and protect your skin accordingly. For more insights into Minamata's UV patterns throughout the year, visit Minamata UV Index.
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December brings 224 hours of sunshine to Minamata, Japan, marking the close of the year with a cozy glow. As the final month, it’s a gentle decline from the summer peak of 305 hours in August, illustrating the seasonal transition. Following an inviting autumn, where sunlight lingered for 241 hours in November, December’s sunlight invites residents to embrace the quieter, cooler days. While the month may not bask in the same radiant abundance as the peak summer months, it still offers a significant amount of daylight — a comforting reminder of the warm sun experienced just months prior. The trend shows a steady decrease as the year progresses, revealing a natural rhythm in Minamata's annual climate that beautifully captures the essence of each season.
In December, Minamata, Japan experiences a modest likelihood of sunny weather, with a 51% chance of sunshine that slightly outpaces the colder months of January and February. This suggests a notable trend in the region's climate as it transitions from the often overcast days of late autumn to a more balanced December, where residents can enjoy clearer skies. Following a peak in October at 62%, the sunniest days appear to linger into November with a 49% chance, setting a foundation for the early winter period. As the year draws to a close, December stands as a refreshing opportunity for sun-seekers, contrasting with the diminishing numbers typical of the summer months, where July dips to only 18% likelihood.
In Minamata, Japan, December sees 10 hours of daylight, a continuation of the trend established in November. As the year culminates, the sunlight begins to recede, reflecting the diminishing days of winter. The pattern reveals a gradual increase from the 10 hours in January to a peak of 14 hours during June and July. After the summer solstice, daylight hours taper off, dropping back to 11 hours in October and returning to 10 hours once more in December. This cyclical variation showcases the city's rhythm, fluctuating between long, vibrant summer days and the shorter, more introspective winter hours.
In Minamata, Japan, December marks a gentle transition in wind patterns, with an average wind speed of 2.8 m/s (6 mph), slightly rising from the lower velocities experienced in the summer months. As the year winds down, this increase reflects a subtle shift towards more consistent breezes, with December standing out among its winter counterparts that typically hover around similar speeds. Notably, while June sees the lowest average at 1.8 m/s (4 mph), subsequent months gradually regain vigor, culminating in this amiable December gust. The pattern suggests a rhythm of calmness giving way to briskness, inviting both locals and visitors to enjoy the brisk air that heralds the arrival of winter.
Weather in Minamata varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Minamata, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in Minamata range from a minimum of -1°C (30°F) to a maximum of 24°C (75°F), with an average temperature of 8°C (47°F). The month sees around 90 mm (3.5 in) of precipitation over 8 days, accompanied by a humidity level of 79%. In contrast, January experiences slightly colder weather, with minimum temperatures dropping to -4°C (25°F) and a maximum of 20°C (68°F), yielding an average of 7°C (44°F). Precipitation decreases to 61 mm (2.4 in) over 7 days, while humidity is slightly lower at 75%. For more detailed information, you can check Minamata weather in January.
December and February exhibit notable differences in weather patterns. December has a wider temperature range, experiencing minimums of -1°C (30°F) and maximums reaching 24°C (75°F), with an average of 8°C (47°F). It also sees significant precipitation with 90 mm (3.5 in) over approximately 8 days, coupled with a relatively high humidity level of 79%. In contrast, February features slightly colder temperatures, with minimums dipping to -3°C (27°F) and maximums around 20°C (69°F), leading to a more consistent average of 8°C (46°F). Precipitation increases to 105 mm (4.1 in) across about 10 days, although humidity decreases to 71%. For further insights into February weather specifics, you can visit Minamata weather in February.
December weather typically features cooler temperatures, with a minimum of -1°C (30°F) and an average of 8°C (47°F), reaching a maximum of 24°C (75°F). The month experiences about 90 mm (3.5 in) of rainfall over 8 days and holds a relatively high humidity level of 79%. In contrast, March ushers in slightly milder conditions, with temperatures ranging from a minimum of 1°C (34°F) to an average of 12°C (54°F), peaking at 26°C (78°F). However, March is wetter, receiving 149 mm (5.9 in) of precipitation over 14 days and showing lower humidity at 71%. For a closer look at March weather specifics, visit Minamata weather in March.
December and April present contrasting weather patterns. In December, temperatures range from a chilly minimum of -1°C (30°F) to a maximum of 24°C (75°F), with an average of 8°C (47°F). Though it is relatively mild for winter, December experiences about 90 mm (3.5 in) of precipitation over 8 days, and humidity levels are around 79%. In contrast, April brings a notable increase in warmth, with minimum temperatures of 4°C (39°F) and maximums reaching 27°C (82°F), leading to an average of 16°C (61°F). However, April also sees higher rainfall, receiving 143 mm (5.6 in) over 10 days, while humidity remains similar at 78%. For more details on the conditions you can expect in April, you can refer to Minamata weather in April.
December and May present contrasting weather patterns. In December, temperatures range from a chilly -1°C (30°F) at night to a comfortable 24°C (75°F) during the day, with an average of 8°C (47°F). The month sees moderate rainfall with a total of 90 mm (3.5 in) spread across 8 rainy days and a humidity level of 79%. In stark contrast, May experiences warmer temperatures, starting at a minimum of 7°C (45°F) and peaking at 30°C (87°F), averaging around 20°C (68°F). This month is notably wetter, with precipitation totaling 234 mm (9.2 in) over 12 days, accompanied by a slightly higher humidity of 84%. For more detailed information, you can check Minamata weather in May.
When comparing the weather in December and June, distinct differences are evident. December experiences cooler temperatures, with a minimum of -1°C (30°F) and an average of 8°C (47°F), contrasting sharply with June's warmer climate, where temperatures range from a minimum of 14°C (58°F) to an average of 23°C (74°F). Precipitation levels also vary significantly; December receives 90 mm (3.5 in) over 8 days, while June sees a substantial rise in rainfall, totaling 342 mm (13.5 in) over 18 days. Additionally, humidity is higher in June at 86%, compared to December's 79%. Such differences highlight the transition from the cold, relatively dry conditions of winter to the warm, moist environment characteristic of late spring. For more details, you can check Minamata weather in June.
December and July present stark contrasts in weather. In December, temperatures range from a chilly -1°C (30°F) at night to a mild 24°C (75°F) during the day, with an average of 8°C (47°F). The month experiences a moderate amount of precipitation, totaling 90 mm (3.5 in) over about 8 days, and the humidity sits at 79%. Conversely, July brings significantly warmer temperatures, with nighttime lows of 18°C (65°F) and daytime highs reaching up to 35°C (96°F), averaging around 27°C (80°F). This summer month also sees much heavier rainfall, accumulating 465 mm (18.3 in) over approximately 22 days, and higher humidity at 92%. For more detailed information, visit Minamata weather in July.
December and August present stark contrasts in weather conditions. In December, temperatures range from a chilly -1°C (30°F) at night to a comfortable 24°C (75°F) during the day, with an average temperature of 8°C (47°F). Precipitation is moderate, totaling 90 mm (3.5 in) over about 8 days, and humidity is relatively high at 79%.
In contrast, August experiences much warmer temperatures, with a minimum of 21°C (71°F), an average of 28°C (82°F), and highs reaching up to 35°C (96°F). Rainfall is significantly greater at 242 mm (9.5 in), falling over 17 days, and humidity is even higher at 91%. For a deeper look at the summer conditions, check out Minamata weather in August.
In comparing the weather between December and September, it is clear that December is significantly cooler, with average temperatures ranging from a minimum of -1°C (30°F) to a maximum of 24°C (75°F), while September enjoys much warmer conditions, with temperatures ranging from 14°C (57°F) to 34°C (94°F). Additionally, precipitation levels are notably higher in September, with 228 mm (9.0 in) recorded over 16 days, compared to December's 90 mm (3.5 in) over just 8 days. Humidity levels are also slightly elevated in September at 84%, compared to December’s average of 79%. For more detailed information on September weather, you can visit Minamata weather in September.
December weather presents a notable shift from October, marked by a cooler temperature range, with December's average at 8°C (47°F) compared to October’s more comfortable 20°C (68°F). The maximum temperatures in December reach only up to 24°C (75°F), while October can see highs of 32°C (89°F). Additionally, December experiences slightly less rainfall at 90 mm (3.5 in) over 8 days, compared to October’s 131 mm (5.2 in) across 10 days. Humidity remains high in both months, but December's average is slightly lower at 79% versus October's 83%. This makes October feel warmer and more humid, while December ushers in a chillier atmosphere. For more insights into October's climate, check out Minamata weather in October.
December weather shows a significant drop in minimum temperatures, averaging -1°C (30°F) compared to November's milder minimum of 1°C (34°F). While December features a wider temperature range with a maximum of 24°C (75°F), it's slightly cooler overall, with an average temperature of 8°C (47°F) compared to November's more temperate 14°C (57°F). Precipitation levels are similar, with December receiving 90 mm (3.5 in) over 8 days, while November sees 96 mm (3.8 in) across 9 days, leading to a marginally lower humidity level of 79% in December compared to 81% in November. For a more detailed look at November weather, visit Minamata weather in November.
December in Minamata marks a shift from the milder months that precede it, ushering in cooler temperatures coupled with increased humidity and precipitation. With higher chances of rain spread across several days, the landscape transforms, making the otherwise vibrant surroundings glisten with water droplets. The crisp air provides a refreshing contrast to the warmer seasons, inviting both locals and visitors to enjoy cozy indoor activities and seasonal festivities. To learn more about how December fits into Minamata's overall climate pattern, visit Minamata Climate.