Last updated: August 21, 2025
In December, Chiba, Japan, experiences a cool and humid climate, with average temperatures hovering around 9°C (48°F). Daily highs can reach up to 20°C (68°F), while frosty nights can dip to a brisk 0°C (33°F). The month witnesses approximately 80 mm (3.2 in) of rainfall spread over 8 days, contributing to a relative humidity level of 78%. This blend of temperatures and moisture creates a fresh, invigorating atmosphere, making December an engaging time to explore the region's seasonal delights.
In Chiba, Japan, December brings a noticeable chill as temperatures begin to dip, marking the transition to winter. With minimum temperatures around 0°C (33°F) and daily averages hovering at 9°C (48°F), residents and visitors alike can expect a season characterized by brisk, refreshing air. Daytime highs still reach a comfortable 20°C (68°F), making it a pleasant time to explore the city's winter charm. As the year draws to a close, the temperature trend reveals a gradual decline from the milder autumn months, emphasizing the shift towards the colder weather typical of the region. With layers recommended for outings, December in Chiba offers a delightful balance of coolness and mild sunny days, perfect for enjoying seasonal activities and festivities.
In December, Chiba, Japan experiences a moderate level of rainfall, totaling 80 mm (3.2 in) over approximately 8 days. This marks a slight increase from the drier months of January and February, hinting at the region's transition into the wetter winter season. With precipitation typically peaking earlier in the year—especially in October with 313 mm—December's total reflects a seasonal tapering off yet still contributes significantly to the annual averages. The relatively condensed rain days suggest that winter in Chiba can be characterized by sporadic but noticeable downpours, allowing for brief sunny interludes amidst the chill. As the year closes, December serves as a reminder of the region's dynamic climate, bridging the gap between the heavy autumn rains and the lighter winter showers that follow.
In Chiba, Japan, December ushers in a noticeable shift in humidity, with levels settling at 78%. This marks a slight decrease from the more humid summer months, where July and August peak at a sweltering 93% and 90%, respectively. Following the summer, humidity gradually tapers off, descending from 88% in June to 80% in November. While December's figures signify a retreat from the summer's stifling embrace, they still reflect a higher average compared to the drier months of winter ahead, showing a consistent trend of elevated humidity throughout the fall and early winter months in Chiba. As the year draws to a close, residents can expect a relatively moist atmosphere, ideal for those who appreciate the softness of winter rain.
In December, Chiba, Japan, experiences a moderate UV Index of 3, with a burn time of 30 minutes. This marks a notable decrease from the peak extreme levels observed during the summer months of June through August, which consistently reached an UV Index of 11, necessitating a mere 10-minute exposure before risk of sunburn. As the year transitions towards winter, the UV levels begin to drop, starting from November's moderate index of 5 and continuing down to December's 3, making it a more forgiving time of year for outdoor activities under the sun. For those planning outings, it’s still wise to be cautious, particularly as spring approaches when the index surges again. Stay informed with the latest details on sunlight safety at Chiba UV Index.
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In Chiba, Japan, December may signal the onset of winter, but it still boasts a respectable 224 hours of sunshine. This marks a gentle decline from the vibrant 288 hours experienced in August, as the days shorten with each passing month. However, the sunshine in December is a comforting highlight during the colder season, only slightly lower than November’s 225 hours. As the year progresses, the sunshine hours peak in spring and early summer, with May basking in the most light at 281 hours, but December still offers a cheerful respite from the gray skies typical of winter. This steady availability of sunshine throughout the year enhances Chiba's charm, making it a delightful destination even in the quiet days of December.
In Chiba, Japan, December brings a 58% chance of sunny weather, marking a noticeable upswing as the year wraps up. This trend reflects a gradual increase in sunshine opportunities compared to earlier months, with November showing a 54% likelihood and October at 47%. After the often overcast summer months, where the chances dip to the mid-thirties, December manages to find a balanced allure. Although colder days lie ahead, the brighter skies offer a delightful contrast, hinting at a promising end to the year. Embrace the sunlight that December has to offer, as it shines a little brighter than many months preceding it!
As December settles in Chiba, Japan, daylight begins to wane, with only 9 hours of light illuminating the winter days. This trend marks the culmination of a gradual decline that starts after the peak of 14 hours in June and July, reflecting the shifting seasons. From 10 hours in January and February, daylight progressively rises until it reaches its zenith in May. The dynamic shift through the year illustrates a vibrant transition from the abundance of light in the warmer months to the serene, quieter days of December, inviting reflection as the year draws to a close.
As December sweeps in Chiba, Japan, the wind takes on a gentle character, averaging 4.0 m/s (9 mph). This marks a slight uptick from the mostly calm November days, which experienced winds of 3.6 m/s (8 mph). The trend reveals a subtle increase in wind speeds as the year winds down, contrasting with the peak observations in May at 5.0 m/s (11 mph). The cool, brisk air of December carries the essence of winter while maintaining a pleasant, refreshing quality, reminiscent of the more robust breezes of spring and summer. Overall, winter’s arrival is heralded by these moderate winds, creating a seasonal transition that’s both invigorating and serene.
Weather in Chiba varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Chiba, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January exhibit notable differences in weather patterns. In December, temperatures range from a minimum of 0°C (33°F) to a maximum of 20°C (68°F), with an average of 9°C (48°F). During this month, the region experiences around 80 mm (3.2 in) of precipitation over approximately 8 days, along with a humidity level of 78%. In contrast, January sees cooler temperatures, with a minimum of -2°C (28°F), an average of 6°C (43°F), and a maximum of 16°C (61°F). Precipitation decreases to 63 mm (2.5 in) over just 5 days, while humidity remains relatively stable at 76%. For a more detailed outlook, you can check Chiba weather in January.
In December, the weather typically features a minimum temperature of 0°C (33°F) and an average high of 20°C (68°F), with the month experiencing about 80 mm (3.2 in) of precipitation over 8 days and an average humidity of 78%. In contrast, February sees a slight dip in temperatures, with minimums remaining at 0°C (32°F) and an average maximum of 16°C (62°F). Additionally, February is drier, with only 50 mm (2.0 in) of precipitation spread across 7 days, and slightly lower humidity at 74%. For a detailed overview of February's weather conditions, you can refer to Chiba weather in February.
When comparing the weather in December and March, both months experience similar maximum temperatures, peaking at around 20°C (68°F). However, December tends to be slightly cooler on average, with temperatures ranging from a minimum of 0°C (33°F) to an average of 9°C (48°F), while March offers a slightly warmer minimum of 1°C (34°F) and an average of 10°C (50°F). Precipitation levels are noticeably higher in March, with 162 mm (6.4 in) over 13 days compared to December's 80 mm (3.2 in) across 8 days, leading to a wetter atmosphere. Despite this increase in rain, March's humidity is lower at 70%, compared to December's 78%. For more specifics on March weather, you can visit Chiba weather in March.
In December, temperatures typically range from a minimum of 0°C (33°F) to a maximum of 20°C (68°F), with an average of 9°C (48°F), creating a cool atmosphere. The month sees about 80 mm (3.2 in) of precipitation over 8 days and a relatively high humidity level of 78%. Conversely, April offers a milder climate with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 24°C (76°F), averaging 14°C (57°F). This month experiences greater precipitation at 137 mm (5.4 in) over 11 days but has a slightly lower humidity at 74%. For more detailed insights, check out Chiba weather in April.
In December, the weather is cooler, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 20°C (68°F), averaging around 9°C (48°F). The month experiences approximately 80 mm (3.2 in) of precipitation over about 8 days, and humidity levels are relatively high at 78%. In contrast, May brings warmer conditions, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 27°C (81°F), averaging around 19°C (66°F). This month sees increased precipitation, totaling about 147 mm (5.8 in) over 12 days, while humidity rises slightly to 81%. For more detailed information, check out Chiba weather in May.
December and June present contrasting weather experiences. In December, temperatures range from a chilly minimum of 0°C (33°F) to a maximum of 20°C (68°F), with an average of 9°C (48°F). The month sees about 80 mm (3.2 in) of precipitation over 8 days, accompanied by a relative humidity of 78%. In stark contrast, June boasts warmer temperatures, with a minimum of 16°C (61°F), an average of 22°C (71°F), and a maximum of 31°C (88°F). This month experiences significantly higher rainfall, totaling 190 mm (7.5 in) over 14 days, and heightened humidity at 88%. For those looking to explore the summer climate, check out Chiba weather in June.
December and July present stark contrasts in weather conditions. In December, temperatures range from a chilly minimum of 0°C (33°F) to a comfortable maximum of 20°C (68°F), with an average of 9°C (48°F). The month experiences 80 mm (3.2 in) of precipitation over about 8 days, accompanied by a humidity level of 78%. In contrast, July is significantly warmer, with temperatures soaring from a minimum of 19°C (66°F) to a scorching maximum of 36°C (97°F), averaging 25°C (78°F). This month sees much more rainfall, totaling 226 mm (8.9 in) across 16 days, and higher humidity levels at 93%. For a more detailed look at July weather patterns, check out Chiba weather in July.
December and August present contrasting weather patterns. December typically experiences cooler temperatures, with a minimum of 0°C (33°F) and a maximum of 20°C (68°F), while the average hovers around 9°C (48°F). In contrast, August boasts much warmer conditions, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 33°C (92°F), and an average temperature of 27°C (81°F). Precipitation is also more prominent in August, totaling 118 mm (4.7 in) over 13 days compared to December's 80 mm (3.2 in) across only 8 days. Furthermore, humidity levels are higher in August at 90%, compared to December's 78%. For more details about the weather in August, you can check Chiba weather in August.
December and September present markedly different weather conditions. In December, temperatures range from a chilly minimum of 0°C (33°F) to a mild maximum of 20°C (68°F), with an average of 9°C (48°F). Precipitation is relatively moderate, totaling 80 mm (3.2 in) over about 8 days, and humidity levels sit at 78%. In contrast, September boasts much warmer temperatures, with a minimum of 16°C (60°F) and a peak of 32°C (89°F), averaging 24°C (75°F). However, the month is also much wetter, receiving 232 mm (9.1 in) of rain over 18 days, alongside a higher humidity of 86%. For more details, check out Chiba weather in September.
In comparison to October, December features significantly cooler temperatures, with a minimum temperature dropping to 0°C (33°F) and an average of 9°C (48°F), while October sees milder conditions with a minimum of 11°C (53°F) and an average of 19°C (66°F). Additionally, December experiences much less precipitation at 80 mm (3.2 in) over 8 days, compared to October's heavier rainfall of 313 mm (12.3 in) over 17 days. Humidity levels are also slightly lower in December at 78%, contrasting with October’s higher humidity of 83%. For more detailed insights, visit Chiba weather in October.
In comparing the weather between November and December, December shows a cooler trend with average temperatures dropping to around 9°C (48°F) compared to November's milder average of 14°C (58°F). The minimum temperature in December is notably lower, reaching 0°C (33°F), while November starts at a minimum of 5°C (41°F). Additionally, December experiences less precipitation, totaling 80 mm (3.2 in) over 8 days, in contrast to November's 119 mm (4.7 in) spread across 12 days. Humidity remains relatively similar, with December at 78% and November slightly higher at 80%. For more detailed information, check Chiba weather in November.
As December unfolds in Chiba, the city experiences a notable shift in weather compared to the milder months. While temperatures can peak at a pleasant 20°C, the average cools down significantly to 9°C, introducing a crispness that invites cozy layers. This month also sees increased precipitation, with about 80 mm* falling over 8 days, contributing to the enhanced humidity level of 78%. As the year wraps up, December brings an invigorating chill and a touch of moisture, making it a unique transition into winter. For a deeper understanding of what to expect throughout the year, explore Chiba Climate.