Last updated: August 21, 2025
December in Yamagata, Japan offers a captivating winter experience characterized by a diverse temperature range, from a maximum of 18°C (65°F) to a chilly minimum of -5°C (23°F), averaging around 6°C (43°F). Throughout the month, 94 mm (3.7 inches) of precipitation falls over 12 days, contributing to the area's beautiful snowy landscapes. With humidity levels at an impressive 83%, the air carries a crispness that enhances the charm of this Japanese season, inviting residents and visitors alike to enjoy festive activities amidst the serene wintry backdrop.
In December, Yamagata, Japan, experiences a noticeable shift as winter begins to envelop the region. With minimum temperatures dipping to -5°C (23°F), the chill in the air hints at the cold months ahead. The average temperature settles around 6°C (43°F), offering a stark contrast to the more temperate conditions of the preceding months. Daytime highs can reach up to 18°C (65°F), providing brief moments of warmth amidst the growing cold. This transition marks an interesting trend: as the year draws to a close, temperatures gradually decline, paving the way for the harsher winter climates that characterize January and February. The crisp air and festive atmosphere make December a magical time in Yamagata, inviting locals and visitors alike to embrace the beauty of winter.
In December, Yamagata, Japan, experiences a noticeable increase in precipitation, with a total of 94 mm (3.7 in) spread across 12 days. This uptick marks a slight rise compared to the preceding month of November, where only 74 mm fell over just 7 days. December's rainfall reflects the transition into winter, setting the stage for Yamagata's characteristic snowy landscape as temperatures drop. Interestingly, as one of the final months of the year, December's precipitation is lower than the summer peak in July, which boasts a staggering 493 mm (19.4 in), yet it solidifies the trend of increased rainfall leading into the winter months. The consistency in precipitation days throughout the year, particularly with a December count close to that of earlier months, suggests a steady pattern of wet weather that prepares the region for the winter season ahead.
In Yamagata, Japan, December marks a noteworthy transition in humidity patterns. The month sees levels stabilizing at 83%, maintaining a trend established in November. As winter approaches, this slight dip from the summer peaks—where July and August soar to 93% and 91% respectively—highlights a shift from the sweltering heat to a cooler atmosphere. Even with the chill of December settling in, the humidity remains relatively high compared to the spring months, where values dipped to 74% in March. This consistent humidity throughout the year creates a distinct climate experience, embracing both the cozy feel of winter and the lingering warmth of spring.
In December, Yamagata experiences a shift towards lower UV exposure, with the index dropping to 3 and classified as moderate, allowing for a more manageable burn time of 30 minutes. This marks a notable decrease from the peak months of May through August, where the UV Index consistently reached 11, indicating an extreme exposure category with a burn time of just 10 minutes. As winter sets in, residents can enjoy the outdoors with a reduced risk of sunburn, compared to the heightened UV levels earlier in the year. However, it’s still important to remain mindful of sun protection habits year-round. For more details on UV exposure throughout the year, visit the Yamagata UV Index.
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In December, Yamagata, Japan experiences a gentle decline in sunshine hours, averaging 216 hours of delightful daylight as winter settles in. This marks a noteworthy contrast to the warm glow of summer peaks, where August shines the brightest with 300 hours. As the year progresses from November with 237 hours, December embraces a softer light, reflecting the seasonal transition. Despite the decrease, the cozy days of December still invite residents and visitors alike to enjoy the crisp air and the stunning winter landscape, making the serene beauty of Yamagata a captivating retreat before the year concludes.
In Yamagata, Japan, December heralds the onset of winter, bringing with it a moderate chance of sunny weather with a 47% likelihood of clear skies. This marks a slight decrease from the preceding months, where November peaks at 59% sunshine availability. Interestingly, October stands out with its 58% chance of sun, suggesting a transition as the year closes. Although December's sunny prospects dip compared to the fall months, they remain relatively promising compared to the gloomier weather typically found in summer, where chances of sunlight can drop as low as 24% in June. As the festive season approaches, Yamagata residents can still anticipate some bright days amidst the gathering clouds of winter.
As the year winds down, December in Yamagata, Japan, ushers in the shortest days, with daylight lasting a mere 9 hours. This marks a notable decline from the 14 hours enjoyed during the height of summer in June and July. The gradual reduction in daylight begins as early as November, reflecting a gentle transition from the glorious brightness of spring and summer months, where daylight peaks in May. The trend shows a steady increase in daylight during the spring months of March and April, ultimately bringing a warm vibrancy before the days shorten again. By December, the cold sets in, and the interplay of light and dark resonates with the tranquil beauty of winter, inviting residents to embrace cozy evenings as daylight retreats.
In December, the winds in Yamagata, Japan pick up slightly, averaging 2.5 m/s (or 6 mph), a welcomed increase as the year draws to a close. This moment of briskness harkens back to the wind speeds seen in January and November, suggesting a seasonal pattern that emphasizes the return of lively gusts as winter approaches. As we move from the gentle breezes of summer, which dip to a low of 1.5 m/s in July, the month of December brings a refreshing change, breathing new life into the cool, crisp air and reminding residents of the dynamic nature of their winter landscape.
Weather in Yamagata varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Yamagata, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January display notable differences in weather patterns. In December, temperatures range from a minimum of -5°C (23°F) to a maximum of 18°C (65°F), with an average of 6°C (43°F), making it slightly warmer than January. In contrast, January experiences colder temperatures, with minimums dropping to -8°C (18°F) and an average of 4°C (39°F). Precipitation is higher in December at 94 mm (3.7 in) over 12 days, while January sees a decrease to 71 mm (2.8 in) across 11 days. Humidity remains fairly consistent, with December at 83% and January slightly lower at 82%. For more insights, you can check out Yamagata weather in January.
December and February exhibit distinct weather patterns, with December generally being milder. In December, temperatures range from a minimum of -5°C (23°F) to a maximum of 18°C (65°F), while February experiences slightly colder temperatures, with a minimum of -7°C (20°F) and a maximum of 20°C (68°F). Precipitation levels are relatively close, with December receiving 94 mm (3.7 in) over 12 days, compared to February’s 79 mm (3.1 in) over 9 days. Additionally, humidity in December is higher at 83%, in contrast to February's 79%. For more insights on February weather, you can explore Yamagata weather in February.
December and March offer distinctly different weather experiences. In December, temperatures can dip as low as -5°C (23°F) before averaging around 6°C (43°F) and peaking at 18°C (65°F). The month is characterized by substantial precipitation of 94 mm (3.7 in) over approximately 12 days, accompanied by high humidity levels of 83%. In contrast, March sees milder temperatures, with a minimum of -1°C (31°F), an average of 9°C (48°F), and a maximum reaching 23°C (74°F). Rainfall increases significantly to 179 mm (7.1 in) over 13 days, while humidity drops to a more comfortable 74%. For a closer look at the specific weather patterns during March, you can visit Yamagata weather in March.
December and April present distinct contrasts in weather patterns. In December, temperatures range from a chilly -5°C (23°F) at night to a milder 18°C (65°F) during the day, with an average of 6°C (43°F). The month sees about 94 mm (3.7 in) of precipitation spread over 12 days, accompanied by relatively high humidity at 83%.
In contrast, April offers warmer conditions, with minimum temperatures rising to 0°C (32°F) and maximums reaching 27°C (82°F), resulting in an average of 13°C (56°F). However, it is also a wetter month, with total precipitation increasing significantly to 223 mm (8.8 in), still over 12 days, but with slightly lower humidity at 76%. For more specific details about the weather in April, check out Yamagata weather in April.
December weather in Yamagata is generally cool, with temperatures ranging from a chilly -5°C (23°F) at night to a mild 18°C (65°F) during the day. Precipitation is moderate at 94 mm (3.7 in) over 12 days, contributing to the overall humidity level of 83%. In contrast, May ushers in much warmer conditions, featuring temperatures that begin at a comfortable 5°C (42°F) and can rise up to a hot 30°C (87°F), with an average of 18°C (65°F). However, May also experiences significantly higher rainfall, totaling 229 mm (9.0 in), while maintaining the same humidity level of 83%. For more details on May weather, check out Yamagata weather in May.
In December, temperatures in Yamagata can be quite chilly, with minimums dropping to -5°C (23°F) and an average temperature of around 6°C (43°F), making it a stark contrast to the warmer conditions of June. During this month, precipitation is moderate at 94 mm (3.7 in) over approximately 12 days, accompanied by high humidity levels of 83%. In contrast, June boasts a more inviting climate, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 31°C (89°F) and an average of 22°C (71°F). However, this month also sees increased rainfall, totaling 245 mm (9.7 in) over 13 days, and humidity rises slightly to 87%. For more detailed information, you can explore Yamagata weather in June.
December and July present starkly contrasting weather conditions. In December, temperatures range from a chilly -5°C (23°F) to a milder 18°C (65°F), with an average of 6°C (43°F). The month experiences about 94 mm (3.7 in) of precipitation over 12 days, accompanied by relatively high humidity levels of 83%. In contrast, July boasts significantly warmer temperatures, with a minimum of 18°C (65°F) and a maximum soaring up to 37°C (100°F), leading to an average temperature of 26°C (78°F). This summer month is characterized by heavy rainfall, accumulating to 493 mm (19.4 in) over 22 days, and an even higher humidity level of 93%. For more insights on the specific weather conditions in July, you can check Yamagata weather in July.
In December, temperatures in Yamagata range from a chilly -5°C (23°F) to a mild 18°C (65°F), with an average of 6°C (43°F). The month sees approximately 94 mm (3.7 in) of precipitation over 12 days, and the humidity levels are quite high at 83%. In contrast, August brings significantly warmer weather, with temperatures ranging from a minimum of 18°C (64°F) to a scorching maximum of 38°C (100°F), and an average of 27°C (82°F). This month experiences much higher precipitation, totaling 322 mm (12.7 in) over 18 days, along with an even higher humidity level of 91%. For a detailed look at the weather conditions in August, you can check Yamagata weather in August.
December weather is characterized by significantly cooler temperatures, with minimums plunging to -5°C (23°F) and average highs reaching only 18°C (65°F). In contrast, September boasts a much warmer climate, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 35°C (95°F), offering a more pleasant outdoor experience. Additionally, December experiences less precipitation than September, with 94 mm (3.7 in) falling over 12 days, compared to September's substantial 298 mm (11.7 in) over 16 days. Both months show high humidity levels, with December at 83% and September slightly higher at 87%. For a more detailed look, check out Yamagata weather in September.
In December, temperatures drop significantly, with a minimum of -5°C (23°F) compared to October’s milder minimum of 6°C (43°F). The average temperature in December is a cooler 6°C (43°F), whereas October enjoys a much warmer average of 18°C (64°F). Humidity remains relatively similar, with December at 83% and October slightly higher at 85%. Precipitation also varies, with December receiving 94 mm (3.7 in) over 12 days, while October experiences heavier rainfall at 234 mm (9.2 in) across 14 days. For more detailed information on October weather, visit Yamagata weather in October.
December's weather is notably colder than November's, with average temperatures dipping from 12°C (53°F) in November to about 6°C (43°F) in December. The minimum temperature in December can plunge to -5°C (23°F), while November's minimum is a milder 1°C (33°F). Additionally, December experiences more precipitation, with 94 mm (3.7 in) falling over 12 days compared to November's 74 mm (2.9 in) over just 7 days. Despite the increased rainfall, both months maintain similar humidity levels at 83%. For a closer look at November's conditions, check out Yamagata weather in November.
As December settles over Yamagata, the weather takes a noticeable turn, transitioning into a crisp and chilly winter atmosphere. Unlike the more moderate temperatures of previous months, December is characterized by a cool average of 6°C and the potential for cold snaps, plunging as low as -5°C at night. The increased humidity and higher precipitation levels can lead to frequent rainy days throughout the month, creating a distinct ambiance compared to the drier autumn. For those interested in exploring more about seasonal changes, you can find additional insights in the Yamagata Climate.