Last updated: August 21, 2025
In December, Yokohama, Japan experiences a delightful mix of winter weather, with temperatures ranging from a chilly minimum of 0°C (33°F) to a mild maximum of 21°C (70°F), averaging around 9°C (49°F). Visitors can expect approximately 64 mm (2.5 in) of precipitation throughout the month, spread across about 7 days, contributing to the city's lush winter charm. The humidity level hovers around 78%, making the air feel crisp yet comfortable. Whether you're strolling by the bay or exploring the vibrant local culture, December in Yokohama offers a unique seasonal experience for everyone.
As December rolls into Yokohama, temperatures begin to reflect the chill of winter, with minimums dipping to 0°C (33°F) and averages settling around 9°C (49°F). The city's climate during this month strikes a balance, as daytime highs can reach a pleasant 21°C (70°F), offering a mild reprieve from the frosty mornings. Compared to the preceding months, December sees a notable drop in warmth, transitioning from the more temperate autumnal averages into a distinctly cooler winter feel. Despite the chill, the mild highs still invite residents and visitors to enjoy the festive atmosphere and outdoor activities, creating a unique blend of cozy winter charm in this vibrant port city.
In December, Yokohama experiences a notable shift as the year draws to a close, with a precipitation amount of 64 mm (2.5 in) recorded over 7 rainy days. This month falls amidst a seasonal trend where autumn rains gradually taper off, leading to a typical winter pattern. Compared to the previous months, December’s rainfall is moderate, notably lower than the peak in October with its 266 mm (10.5 in). The decreasing number of precipitation days suggests a transition toward drier winter conditions, yet enough moisture remains to keep the scenery lush before the chill of winter truly sets in. As the year closes, December serves as a reminder of the gentle, yet persistent rains that define Yokohama's climate.
In Yokohama, Japan, December brings a slight reprieve from the peak humidity levels experienced in the summer months. With an average humidity of 78%, the air is noticeably more comfortable compared to the sweltering July and August, which reach their zenith at 93% and 90%, respectively. Despite the winter chill, December's humidity remains relatively high, particularly when juxtaposed with the drier months of March and April, where levels dip to 70% and 74%. This gradual decrease from the oppressive summer mugginess sets the stage for a refreshing winter atmosphere, making December a transition month for the region's humidity, as it heads toward the cooler and less humid conditions of the following spring.
As December rolls into Yokohama, the UV Index settles at a moderate 4, indicating a slight decrease in sun intensity compared to the previous months. This marks a transition from the extreme levels of summer, where the index peaked at 11 from May to August, demanding caution with a burn time of only 10 minutes. The gradual decline seen from October’s 7 to November’s 5 continues, yet the risk of sunburn remains, urging residents and visitors alike to enjoy outdoor activities while remaining mindful of sun safety. With a burn time of 30 minutes in December, it's an ideal opportunity to embrace the cooler weather, but don't forget the sunscreen! For more details and insights, check the Yokohama UV Index.
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In December, Yokohama, Japan, enjoys approximately 231 hours of sunshine, maintaining the warm glow that’s characteristic of the winter months. This figure mirrors November's sunlit total, following a trend of relatively consistent daylight as the year wraps up. Notably, December's sunshine hours are part of a broader pattern where the year peaks in brightness during the summer months, with August boasting the most sunlight at 288 hours. Conversely, the colder months like January see a dip to 191 hours, emphasizing a seasonal ebb and flow. As winter approaches, although sunlight may shorten, Yokohama still basks in a delightful winter charm, making December a perfect time to revel in the city’s vibrant holiday festivities under the gentle winter sun.
In Yokohama, December greets residents with a 64% chance of sunny weather, making it one of the brighter months as the year comes to a close. This trend marks a notable increase from the preceding months, where cloud cover tends to dominate. While winter's chill sets in, December's sunny disposition stands out when compared to the dimmer days of summer, which linger in the low to mid-thirties for sunshine. The rise from November's 59% creates a sense of optimism for outdoor festivities and holiday celebrations. Overall, December's weather invites both locals and visitors alike to embrace the outdoors, bolstered by an encouraging blend of sunshine amidst the winter landscape.
As the year draws to a close, December in Yokohama, Japan brings a noticeable shift in daylight hours, with the city experiencing only 9 hours of daylight. This decline follows a gradual decrease that begins in late autumn, where daylight stretches reach 10 hours in November and gradually taper off through the winter season. Reflecting on the yearly trend, one can observe a significant increase in daylight from the early months of the year, with hours peaking at 14 hours in both June and July. As the seasons transition from spring's vibrant 13 hours in April to the dimming days of winter, Yokohama’s daylight duration encapsulates the enchanting ebb and flow of nature's cycle, marking the diverse rhythms of life in this bustling port city.
In Yokohama, December ushers in a refreshing shift in wind patterns, with an average wind speed of 4.5 m/s (10 mph). This gentle breeze is a pleasant contrast to the warmer months, which experienced peak winds of 5.3 m/s in May. As the year winds down, the December winds are noticeably steadier than the lighter 3.2 m/s during the peak summer in July, creating an inviting atmosphere for winter strolls along the waterfront. Overall, while the wind speeds remain moderate, December's conditions reflect a transition, striking a balance between the lingering warmth of autumn and the crisp chill of winter, inviting both locals and visitors to embrace the seasonal changes.
Weather in Yokohama varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Yokohama, focusing on differences in temperature, rainfall, humidity, and UV levels.
In Yokohama, December typically features milder temperatures than January, with a minimum of 0°C (33°F) and an average of 9°C (49°F), reaching a maximum of 21°C (70°F). December also experiences more rain, with 64 mm (2.5 in) of precipitation over 7 days and a humidity level of 78%. Conversely, January brings cooler conditions, with temperatures dipping to a minimum of -3°C (27°F) and an average of 6°C (44°F), peaking at 18°C (65°F). The month sees slightly less rain, with 52 mm (2.1 in) across just 4 days and a humidity level of 76%. For more details on January weather in Yokohama, you can check Yokohama weather in January.
In December, temperatures in the region range from a minimum of 0°C (33°F) to a maximum of 21°C (70°F), with an average temperature of 9°C (49°F). This month experiences more precipitation, totaling 64 mm (2.5 in) over approximately 7 days, and has a humidity level of 78%. In contrast, February sees slightly cooler temperatures, with a minimum of 0°C (31°F) and a maximum of 18°C (66°F), and an average of 7°C (45°F). Precipitation is lower in February, amounting to 43 mm (1.7 in) over the same number of rainy days, with humidity at a slightly lower 74%. For more detailed information, you can check Yokohama weather in February.
December and March exhibit notable differences in weather patterns. While December enjoys milder temperatures with a minimum of 0°C (33°F) and an average of 9°C (49°F), March experiences slightly warmer conditions, with a minimum of 1°C (34°F) and an average of 11°C (52°F). However, March is characterized by increased precipitation, with 138 mm (5.4 in) over 12 days, compared to December's 64 mm (2.5 in) over 7 days. The humidity also reflects these changes, standing at 78% in December and dropping to 70% in March. For a detailed look at what to expect, check out Yokohama weather in March.
When comparing the weather between December and April, a noticeable shift occurs in temperature and precipitation patterns. December experiences cooler temperatures, with a minimum of 0°C (33°F) and an average of 9°C (49°F), while April sees milder conditions, with a minimum of 4°C (40°F) and an average of 15°C (58°F). In December, the maximum temperature reaches 21°C (70°F), but in April, it slightly increases to 23°C (74°F).
Precipitation is also more pronounced in April, with 116 mm (4.6 in) falling over 10 days, compared to December's 64 mm (2.5 in) over just 7 days. Interestingly, humidity levels remain relatively similar, slightly declining from 78% in December to 74% in April. For more detailed information, check out Yokohama weather in April.
In December, the weather is cooler with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 21°C (70°F), averaging around 9°C (49°F). The month sees about 64 mm (2.5 in) of precipitation over approximately 7 days, with a humidity level of 78%. In contrast, May brings warmer temperatures, with a minimum of 11°C (52°F) and a maximum of 27°C (80°F), averaging 19°C (67°F). However, it also experiences higher precipitation at 118 mm (4.6 in) across 11 days, accompanied by a slightly increased humidity of 81%. For more details, check out Yokohama weather in May.
In December, the weather is cooler with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 21°C (70°F), averaging around 9°C (49°F). The month sees about 64 mm (2.5 in) of precipitation over 7 days, accompanied by a humidity level of 78%. In contrast, June experiences significantly warmer conditions, where temperatures start at a minimum of 16°C (61°F) and can rise to a maximum of 29°C (85°F), averaging 22°C (72°F). Additionally, June is a wetter month, receiving 161 mm (6.3 in) of rain spread across 13 days, with humidity levels increasing to 88%. This stark contrast highlights the transition from the chill of winter to the warmth and humidity of early summer. For more detailed insights, check out Yokohama weather in June.
In December, the weather is considerably cooler with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 21°C (70°F), making for a refreshing winter month. Precipitation is moderate, averaging 64 mm (2.5 in) over about 7 days, and the humidity is at 78%, creating a crisp atmosphere. In contrast, July brings a stark change with higher temperatures, ranging from a minimum of 19°C (66°F) to a maximum of 35°C (95°F), resulting in warm and humid conditions. This month sees much more rainfall, with an average of 209 mm (8.2 in) spread over 16 days and humidity levels rising to 93%. For a more detailed look at the July weather, visit Yokohama weather in July.
The weather in December is characterized by cooler temperatures, with a minimum of 0°C (33°F) and an average of 9°C (49°F), while August brings warmth, featuring a minimum of 20°C (68°F) and an average of 28°C (82°F). December experiences less precipitation, totaling 64 mm (2.5 in) over about 7 days, compared to August, which sees 104 mm (4.1 in) spread across 12 days. Additionally, humidity levels are higher in August at 90%, compared to December's 78%, making the summer month feel more humid and sticky. For more details on August weather, you can check Yokohama weather in August.
Comparing the weather in December and September reveals distinct seasonal differences. In December, temperatures range from a chilly minimum of 0°C (33°F) to a comfortable maximum of 21°C (70°F), with an average of 9°C (49°F). The month experiences about 64 mm (2.5 in) of precipitation over 7 rainy days, accompanied by a humidity level of 78%. In contrast, September boasts notably warmer temperatures, with a minimum of 16°C (60°F) and a maximum of 32°C (90°F), leading to a higher average of 24°C (76°F). However, it also sees significantly more rainfall, totaling 187 mm (7.4 in) over 16 days and a higher humidity level of 86%. For more details about the weather during this month, you can check Yokohama weather in September.
In comparing the weather between October and December, October tends to be warmer and wetter. The average temperature in October is 19°C (67°F), with maximums reaching up to 28°C (83°F), whereas December sees cooler temperatures, averaging around 9°C (49°F) with maximums of 21°C (70°F). Additionally, October experiences significantly higher precipitation, totaling 266 mm (10.5 in) over 16 days, compared to December's 64 mm (2.5 in) over just 7 days. Humidity levels remain relatively high in both months, with October at 83% and December at 78%. For more details, check out the Yokohama weather in October.
In comparing the weather patterns of December and November, December experiences a cooler climate, with average temperatures ranging from a minimum of 0°C (33°F) to a maximum of 21°C (70°F), while November boasts warmer averages from a minimum of 4°C (40°F) to a maximum of 23°C (73°F). Precipitation is slightly lower in December, accumulating 64 mm (2.5 in) over 7 days, compared to November's 87 mm (3.4 in) over 11 days. The humidity levels in both months are quite similar, with December at 78% and November at 80%. For more detailed insights, you can check Yokohama weather in November.
December in Yokohama marks a distinct shift in weather patterns, transitioning from the milder, more humid conditions of autumn to cooler and drier days. The month experiences a comfortable range of temperatures, with a notable decrease as the city prepares for winter. While daytime highs can still reach a pleasant warmth, the evenings often bring a chill that requires a cozy layer. Precipitation is relatively low compared to the summer months, reducing the frequency of rainy days and allowing clearer skies to dominate. With an average humidity of 78%, there's a crispness in the air that refreshes and invigorates. For a deeper dive into how Yokohama's weather evolves throughout the year, explore Yokohama Climate.