Last updated: August 21, 2025
December in Tateyama, Japan, brings a cool embrace as temperatures range from a minimum of 4°C (40°F) to a maximum of 22°C (71°F), with an average hovering around a brisk 12°C (54°F). This month, the region experiences approximately 80 mm (3.1 in) of precipitation over 10 days, which contributes to a humidity level of 78%, creating a distinctly crisp yet damp atmosphere. Visitors can expect a blend of chilly air and occasional rain, ideal for experiencing the serene beauty of winter in this picturesque locale.
As December unfolds in Tateyama, Japan, temperatures start to dip, heralding the onset of winter. With minimums* around 4°C (40°F), the chill sets in, yet the average temperature remains a mild 12°C (54°F). Interestingly, daytime highs can reach up to 22°C (71°F), offering a surprising warmth that contrasts sharply with the season's brisk nights. This pattern indicates a gradual cooling from the milder autumn months, while still allowing for pleasantly temperate days before the deep freeze of January takes hold. Overall, December captures a unique transitional phase, blending the lingering warmth of fall with winter's approach.
In December, Tateyama experiences an average precipitation of 80 mm (3.1 in) over approximately 10 days, marking a slight increase from earlier months. This pattern sets the stage for the winter season, as December's rainfall is notably less than the 308 mm (12.1 in) recorded in October but remains consistent with the rainy atmosphere typical of the region. The gradual decrease in precipitation from June's peak of 206 mm echoes a shift towards drier months, yet December continues to showcase the region's atmospheric dynamism. As the year draws to a close, the snowfall potential also begins to rise, hinting at a shift in the weather landscape that often follows in January.
December in Tateyama, Japan, sees an average humidity of 78%, marking a slight decrease compared to the preceding summer months, where humidity peaks at an impressive 93% in July. As the year transitions from the lushness of summer to the chill of winter, a gradual decline in moisture levels is observed, with November's humidity resting at 80%. This seasonal shift suggests a move towards drier air as the days grow shorter and colder. However, December remains relatively humid, reflecting the region's maritime climate, which is characterized by higher humidity levels, particularly in the earlier months of the year. Thus, while the crisp winter air begins to settle in, Tateyama retains a significant level of humidity, showcasing the balance of seasonal changes in this picturesque Japanese locale.
As the year comes to a close in Tateyama, Japan, December brings a return to a moderate UV Index of 4, similar to the levels experienced in January and November. This trend highlights a seasonal pattern where the UV intensity decreases after the extreme levels observed during the summer months, which peaked at an elevated UV Index of 11 from May to August. The burn time remains consistent at 30 minutes, allowing for more leisurely outdoor activities without the immediate concern of overexposure. This offers a refreshing respite after the high UV indices earlier in the year, encouraging residents and visitors alike to enjoy the outdoor beauty safely during the winter months. For more detailed insights on UV levels throughout the year, you can explore the Tateyama UV Index.
UV Risk Categories
In Tateyama, Japan, December ushers in a refreshing sense of continuity with its 226 hours of sunshine, mirroring the light of November. This marks a pleasing transition as autumn bids farewell, paving the way for winter's embrace. Throughout the year, sunshine hours peak in August with a vibrant 297 hours, while the colder months of January and February see significant daylight but still remain comparatively low. As spring approaches, sunlight hours gradually rise, reaching a peak in May. December's steady daylight hints at a trend of resilience, maintaining a bright charm amid the colder temperatures, allowing residents and visitors alike to enjoy a warm glow as they prepare for the New Year.
In December, Tateyama, Japan experiences a promising 66% chance of sunny weather, making it one of the sunniest months of the year. This trend marks a notable increase following the 60% chance reported in November, suggesting a shift towards brighter days as winter unfolds. Despite the colder temperatures typical of this season, December's sunshine is a welcome change compared to the gloomy weather observed in the summer months, where chances of sunlight hover around the 26-41% range. As the year draws to a close, residents and visitors can look forward to more frequent sunny spells, enhancing outdoor activities and holiday cheer in this picturesque coastal city.
In Tateyama, Japan, the ebb and flow of daylight throughout the year reveals a captivating pattern. Starting with 10 hours in both January and February, the days gradually lengthen as spring approaches, reaching a peak of 14 hours in June and July. This abundant daylight begins to wane in August, leading into a gentle decline back to 10 hours by November. December marks the shortest days of the year, with just 9 hours of daylight, signaling the shift into winter. This cyclical rhythm not only defines the seasons but also enhances the region's scenic beauty, inviting locals and visitors alike to experience the charm of varying daylight as the year unfolds.
As December unfolds in Tateyama, Japan, the winds begin to pick up, reaching an average speed of 8.0 m/s (18 mph). This marks a notable increase from the calmer summer months, where speeds dipped as low as 4.2 m/s (9 mph) in July. It's interesting to observe how the autumn months maintain a steady breeze, with wind speeds hovering around 6.7 m/s (15 mph) to 7.6 m/s (17 mph). December's gusts hint at a transition into winter, as the wind becomes sharper and more invigorating, creating a stark contrast to the gentle breezes that characterized the summer. This trend reflects a broader seasonal shift, inviting both locals and visitors to embrace the briskness of the winter air in Tateyama.
Weather in Tateyama varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Tateyama, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in the region typically range from a mild 4°C (40°F) at night to a warm 22°C (71°F) during the day, with an average temperature of 12°C (54°F). The month sees approximately 80 mm (3.1 in) of precipitation spread over 10 days, accompanied by a relatively high humidity level of 78%. In contrast, January experiences slightly cooler weather, with minimum temperatures dropping to 2°C (36°F) and a maximum of 19°C (66°F), averaging around 10°C (50°F). Rainfall decreases to 75 mm (3.0 in) over just 7 days, while humidity remains comparable at 76%. For more details on weather patterns in January, you can check Tateyama weather in January.
December and February exhibit notable differences in weather patterns. In December, temperatures range from a minimum of 4°C (40°F) to a maximum of 22°C (71°F), with an average of 12°C (54°F). The month experiences about 80 mm (3.1 in) of precipitation over approximately 10 days, contributing to a relatively humid atmosphere with 78% humidity. In contrast, February sees slightly cooler temperatures, with a minimum of 3°C (38°F), an average of 10°C (50°F), and a maximum of 19°C (66°F). Precipitation decreases to 63 mm (2.5 in) spread over 9 days, and humidity also drops to 74%. For more specific details about February weather in Tateyama, you can visit Tateyama weather in February.
In December, the weather typically features mild temperatures, with a minimum of 4°C (40°F) and an average of 12°C (54°F), peaking at a comfortable 22°C (71°F). However, this month also experiences relatively high humidity at 78% and about 80 mm of precipitation over approximately 10 days. In contrast, March sees slightly warmer conditions, with a minimum of 5°C (42°F) and an average of 13°C (55°F), though the maximum temperature is lower at 19°C (66°F). Notably, March is significantly wetter, with 174 mm of precipitation spread over 14 days, but the humidity drops to 70%. For a detailed look at conditions in March, you can visit Tateyama weather in March.
In December, the weather is generally cooler, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 22°C (71°F). The month experiences about 80 mm (3.1 in) of precipitation over approximately 10 days, accompanied by relatively high humidity at 78%. In contrast, April offers slightly warmer conditions, with minimum temperatures reaching 7°C (45°F) and averages around 15°C (59°F), peaking at 21°C (71°F). However, April is wetter, with precipitation totaling 132 mm (5.2 in) over the same number of rainy days, and a humidity level of 74%. For more detailed insights into April weather, you can check out Tateyama weather in April.
December and May exhibit distinct weather patterns, reflecting the transition between seasons. In December, temperatures range from a minimum of 4°C (40°F) to a maximum of 22°C (71°F), with an average of 12°C (54°F), paired with a relatively high humidity of 78%. This month experiences about 80 mm (3.1 in) of precipitation spread over 10 days. In stark contrast, May sees warmer temperatures that start at a minimum of 13°C (55°F) and peak at 23°C (73°F), averaging 19°C (66°F). This month is wetter, with precipitation amounting to 155 mm (6.1 in) also occurring over 10 days, and a slightly higher humidity of 81%. For more detailed insights into May weather conditions, you can visit Tateyama weather in May.
December and June present contrasting weather patterns, showcasing distinct seasonal characteristics. In December, temperatures range from a mild minimum of 4°C (40°F) to an average of 12°C (54°F), peaking at a comfortable 22°C (71°F). This month experiences moderate precipitation at 80 mm (3.1 in) over about 10 days, accompanied by a humidity level of 78%. In comparison, June offers significantly warmer conditions with temperatures starting at a minimum of 17°C (63°F), averaging 22°C (71°F) and reaching a maximum of 25°C (77°F). However, it also sees increased rainfall, totaling 206 mm (8.1 in) over 13 days, and a higher humidity level of 88%. For more detailed insights on the weather during this month, you can check Tateyama weather in June.
December and July present vastly different weather conditions. In December, temperatures range from a chilly 4°C (40°F) at night to a pleasant 22°C (71°F) during the day, with an average of 12°C (54°F). The month sees approximately 80 mm (3.1 in) of precipitation over about 10 days, alongside a humidity level of 78%. In contrast, July boasts much warmer temperatures, with minimums around 20°C (69°F) and maximums reaching 28°C (83°F), averaging 25°C (77°F). However, it experiences significantly more rainfall, totaling 227 mm (8.9 in) across 14 days, and a higher humidity of 93%. For a detailed look at July weather in this region, you can visit Tateyama weather in July.
In December, temperatures in Tateyama range from a minimum of 4°C (40°F) to a maximum of 22°C (71°F), with an average temperature of 12°C (54°F). The month experiences about 80 mm (3.1 in) of precipitation over approximately 10 days, and the humidity level hovers at 78%. In contrast, August sees much warmer conditions, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 30°C (86°F), averaging at 27°C (80°F). This month has higher precipitation, totaling around 119 mm (4.7 in), also spread across 10 days, but with a slightly higher humidity of 90%. For more details on the weather specifics during this summer month, you can check Tateyama weather in August.
When comparing the weather in December and September, there are notable differences in temperature and precipitation patterns. December experiences cooler temperatures, with minimums around 4°C (40°F) and maximums reaching 22°C (71°F), while September boasts much warmer weather, ranging from a minimum of 20°C (68°F) to a maximum of 29°C (84°F). Additionally, December sees lower precipitation levels at 80 mm (3.1 in) over approximately 10 days, in contrast to September's higher rainfall of 197 mm (7.8 in) over 17 days. The humidity is slightly lower in December at 78%, compared to September's 86%, making September feel more muggy despite its warmth. For more detailed information about September weather, you can visit Tateyama weather in September.
The weather in December is notably cooler compared to October, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 22°C (71°F), while October enjoys milder temperatures, with averages between 15°C (59°F) and 27°C (81°F). Additionally, December experiences significantly less rainfall, with 80 mm (3.1 in) spread over 10 days, unlike October, which sees a much wetter climate with 308 mm (12.1 in) of precipitation over 16 days. Humidity levels in December are slightly lower at 78% compared to October's 83%, marking a shift towards drier conditions as the year comes to a close. For a more detailed look at October's weather specifics, visit Tateyama weather in October.
In comparing the weather between November and December, December tends to be cooler overall, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 22°C (71°F), while November enjoys milder temperatures, with averages between 8°C (47°F) and 23°C (73°F). Additionally, December experiences less precipitation than November, receiving 80 mm (3.1 in) over approximately 10 days, compared to November's 134 mm (5.3 in) across 13 days. Humidity levels remain similar, with December at 78% and November at 80%. For more detailed information on November's weather patterns, visit Tateyama weather in November.
As December unfolds in Tateyama, the weather takes a notable turn, welcoming the chill of winter with cooler temperatures and increased humidity. While the days are relatively mild compared to the peak winter months, the average temperature hovers at a refreshing 12°C (54°F), providing a stark contrast to the warmer months. Rainfall adds to the mix, with about 80 mm expected across approximately 10 days, making it one of the wetter periods of the year. This shift not only transforms the landscape but also enhances the serene beauty of the region. For a deeper look into Tateyama's climate throughout the year, visit Tateyama Climate.