Last updated: August 21, 2025
December in Tsukuba, Japan presents a unique blend of seasonal beauty and crisp air. With maximum temperatures reaching up to 20°C (68°F) and an average of 6°C (43°F), winter begins to settle in, bringing a refreshing chill. Nighttime temperatures can dip as low as -4°C (26°F), reminding residents and visitors alike of the season’s bite. Humidity levels soar at 86%, contributing to a palpable sense of coolness in the air. Over the month, 50 mm (1.9 in) of precipitation falls across 6 days, potentially adorning the landscape with a delicate touch of frost or light snowfall. Whether you're exploring the serene surroundings or enjoying indoor activities, December in Tsukuba offers a captivating winter experience.
In December, Tsukuba experiences a transitional chill as it approaches winter, with temperatures ranging from a minimum of -4°C (26°F) to a comfortable maximum of 20°C (68°F). The average temperature hovers around 6°C (43°F), marking a noteworthy drop from the milder months preceding it. As autumn gives way to winter, the city sees a clear shift with temperatures noticeably cooler than November, which had a minimum of -2°C (30°F) and an average of 12°C (54°F). This trend reflects the typical seasonal progression in Tsukuba, where December serves as a reminder of the cold months ahead, while still offering occasional glimpses of warmth that linger from autumn. The gradual decline in temperatures is not just a signal of winter's onset but also sets the stage for cozy festivities and urban landscapes adorned with seasonal charm.
In December, Tsukuba, Japan experiences a notable shift in precipitation patterns as the year draws to a close. Receiving approximately 50 mm (1.9 in) of rain over 6 days, the city sees a decline in moisture compared to the wetter summer months. This decrease follows a trend observed since the more precipitation-heavy periods of July and October, which recorded 218 mm (8.6 in) and 225 mm (8.8 in) respectively. Interestingly, December's rainfall aligns more closely with the drier months of January and February, which also feature relatively few precipitation days. As the winter chill settles in, Tsukuba transitions into a quieter season, characterized by intermittent, light showers that gently nurture the landscape, while still leaving space for clear, crisp winter days.
In December, Tsukuba, Japan experiences a humidity level of 86%, marking a slight decrease from the more oppressive figures seen during the summer months. This month sits comfortably between the high humidity of 92% in July and August and the lower levels recorded in the spring, such as 78% in April. As the year progresses, humidity in Tsukuba remains relatively consistent, with winter months bringing a marginal drop compared to the highs of earlier seasons. The return to the cooler temperatures often leads to a more comfortable atmosphere, appealing to those who enjoy milder and less muggy conditions. Overall, December serves as a gentle transition into the drier months ahead, while still maintaining a noticeable presence of moisture in the air.
As December rolls into Tsukuba, Japan, the UV Index drops to 3, signaling a return to the moderate exposure category. This marks the end of a sun-intensive year where the UV levels peaked at an extreme 11 in July. Generally, winter months tend to see lower UV ratings, as observed with the 30 minutes burn time in both December and the preceding January and November, indicating a consistent need for sun protection during peak hours. The substantial fluctuations throughout the year highlight the importance of staying vigilant and adapting sun safety practices accordingly. For more detailed insights, visit the Tsukuba UV Index page.
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In December, Tsukuba, Japan, basks in an impressive 228 hours of sunshine, marking a delightful end to the year. As the seasons transition from the vibrant golden hues of autumn to the serene chill of winter, sunlight remains a cherished companion, contributing to a warm glow during the colder months. Following a peak in May with 274 hours, December's sunshine is a reminder of the comparatively shorter days, yet still abundant enough to evoke a sense of brightness amidst the winter atmosphere. Notably, the hours of sunlight gradually decline from the spring peak, with a subtle recovery in the autumn months before settling at this moderate winter figure, illustrating Tsukuba's unique seasonal rhythm where even the darkest month offers moments of warmth and light.
In Tsukuba, Japan, December presents a notable 68% chance of sunny weather, making it one of the brighter months of the year. As autumn gives way to winter, the likelihood of sunshine remains relatively high, building on November's already robust 63%. This shift marks a contrast to the preceding summer months, where the sun's presence diminishes significantly, with percentages dropping into the low twenties. Overall, as December approaches, the trend suggests a welcome return of clearer skies, offering residents and visitors alike an enjoyable start to winter in this vibrant city.
As the year winds down, December in Tsukuba, Japan mirrors the earlier winter months with a daylight duration of just 9 hours. This marks a notable decline from the longer days of summer, particularly the peak of 14 hours experienced in June and July. The transition from 12 hours in September to the year’s shortest days encapsulates the gradual shift from vibrant spring and summer evenings to the crisp, cozy darkness of winter. This cyclical rhythm of light and shadow not only influences the region’s natural landscape but also sets a unique tone for daily life in December, inviting residents to embrace indoor activities and the warmth of community gatherings.
As December settles in Tsukuba, Japan, the average wind speed hovers at 2.4 m/s (5 mph), marking a subtle increase from the light breezes of November. This month sees a slight resurgence, reminiscent of the gentle winds that typically accompany early autumn. Observing the trend throughout the year, wind speeds are generally at their lowest during the peak summer months of July, where they dip to 1.9 m/s (4 mph), before gradually picking up again by December. Interestingly, the transition into winter does not prompt a dramatic shift in winds, as the speeds remain relatively mild compared to the more blustery spring months, particularly April and May. This pattern highlights a distinctive calmness that blankets Tsukuba during the colder months, making December's winds a gentle reminder of the peaceful winter ahead.
Weather in Tsukuba varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Tsukuba, focusing on differences in temperature, rainfall, humidity, and UV levels.
December in Tsukuba typically experiences a wider temperature range, with minimums around -4°C (26°F) and maximums reaching up to 20°C (68°F), while January sees colder lows of -10°C (14°F) and slightly lower highs of 17°C (63°F). Precipitation is slightly more frequent in December, averaging 50 mm (1.9 in) over six days compared to January's 38 mm (1.5 in) over just four days. Additionally, both months exhibit high humidity levels, with December at 86% and January at 88%, contributing to a crisp winter atmosphere. For more detailed seasonal insights, you can refer to Tsukuba weather in January.
December and February in Tsukuba exhibit similar weather patterns, though with slight variations. December typically ranges from a minimum of -4°C (26°F) to a maximum of 20°C (68°F), with an average temperature of 6°C (43°F) and experiencing about 50 mm (1.9 in) of precipitation over 6 days. In contrast, February sees slightly cooler temperatures, with a minimum of -5°C (23°F) and a maximum of 21°C (70°F), averaging 5°C (42°F). Precipitation is lower in February, totaling 37 mm (1.5 in) over the same number of days. Both months share a consistent humidity level of 86%, creating a chilly, damp atmosphere typical of winter. For more details on February weather in Tsukuba, visit Tsukuba weather in February.
In December, temperatures typically range from a minimum of -4°C (26°F) to a maximum of 20°C (68°F), with an average temperature of around 6°C (43°F). The month sees about 50 mm (1.9 in) of precipitation over roughly 6 days, accompanied by high humidity levels of 86%. In contrast, March experiences slightly milder conditions, with temperatures ranging from -4°C (25°F) to a high of 24°C (76°F) and an average temperature of 9°C (49°F). However, March is considerably wetter, with 124 mm (4.9 in) of precipitation over approximately 11 days, and humidity remains lower at 81%. For more detailed insights, you can check Tsukuba weather in March.
December and April present quite contrasting weather conditions. In December, temperatures range from a chilly -4°C (26°F) at night to a pleasant 20°C (68°F) during the day, with an average of 6°C (43°F). The month sees about 50 mm (1.9 in) of precipitation across approximately 6 days, and humidity is high at 86%. In stark contrast, April experiences milder temperatures, with a minimum of -1°C (31°F), an average of 14°C (57°F), and a maximum reaching 29°C (84°F). This month is also wetter, receiving around 112 mm (4.4 in) of rainfall over 11 days, and exhibits lower humidity at 78%. For more detailed information, check out Tsukuba weather in April.
When comparing the weather in December and May, significant differences emerge. December experiences cooler temperatures, with a minimum of -4°C (26°F) and an average of 6°C (43°F), while May offers a much warmer climate, featuring a minimum of 6°C (43°F) and an average of 19°C (67°F). Additionally, December sees less precipitation, with 50 mm (1.9 in) over 6 days, whereas May has notably higher rainfall of 123 mm (4.8 in) across 12 days. Despite the increased rainfall in May, the humidity levels are slightly lower at 81%, compared to December’s 86%. For more detailed information about monthly weather patterns, visit Tsukuba weather in May.
December and June exhibit distinctly different weather patterns. In December, temperatures range from a chilly minimum of -4°C (26°F) to a mild maximum of 20°C (68°F), with an average of around 6°C (43°F). This month experiences relatively low precipitation, totaling 50 mm (1.9 in) over just 6 days, accompanied by high humidity at 86%. In contrast, June sees a much warmer climate, with minimum temperatures starting at 12°C (55°F) and peaking at 33°C (92°F), averaging 22°C (72°F). The month is wetter, receiving 132 mm (5.2 in) of rain over 16 days, and maintains a similar humidity level of 88%. For a detailed overview of June weather, you can check Tsukuba weather in June.
December and July present strikingly different weather patterns. In December, temperatures range from a chilly -4°C (26°F) to a mild 20°C (68°F), with an average of 6°C (43°F) and relatively low precipitation at 50 mm (1.9 in) over six days, coupled with a high humidity of 86%. In contrast, July brings significantly warmer weather, with temperatures varying between a minimum of 17°C (63°F) and a scorching maximum of 37°C (98°F), leading to an average of 26°C (79°F). Rainfall in July is much higher, at 218 mm (8.6 in) across 20 days, and humidity remains elevated at 92%. For more details, check out Tsukuba weather in July.
December and August present starkly contrasting weather conditions. In December, temperatures range from a chilly -4°C (26°F) at night to a mild 20°C (68°F) during the day, averaging around 6°C (43°F). The month experiences about 50 mm (1.9 in) of precipitation over six days, with humidity levels at 86%. In contrast, August boasts much warmer temperatures, with nighttime lows of 17°C (62°F) and daytime highs reaching a sizzling 37°C (98°F), averaging 28°C (82°F). Precipitation is more frequent in August, totaling 114 mm (4.5 in) over 14 days, coupled with even higher humidity at 92%. For more specific details about the weather in August, you can visit Tsukuba weather in August.
When comparing the weather in December and September, it's clear that the two months offer vastly different climates. December experiences cooler temperatures, with a minimum of -4°C (26°F) and an average of 6°C (43°F), while September sees much warmer conditions, featuring a minimum of 12°C (54°F) and an average of 23°C (74°F). Precipitation levels also differ significantly; December has 50 mm (1.9 in) over just 6 days, whereas September is much wetter with 157 mm (6.2 in) spread across 17 days. Additionally, humidity remains fairly high in both months, at 86% in December and 89% in September. For a detailed overview of September weather, visit Tsukuba weather in September.
In comparing the weather between December and October, December tends to be colder with a minimum temperature of -4°C (26°F) and a milder average of 6°C (43°F), while October boasts a warmer minimum of 6°C (42°F) and a much higher average of 18°C (64°F). Additionally, October experiences significantly more precipitation, 225 mm (8.8 in), across 14 days compared to December's 50 mm (1.9 in) over just 6 days. Both months see high humidity levels, with December at 86% and October at 87%, which can make the cooler temperatures feel more pronounced in December. For those interested in the specifics of October weather, you can refer to Tsukuba weather in October.
In December, temperatures in Tsukuba show a slight drop compared to November, with average highs reaching 20°C (68°F) compared to 23°C (74°F) in November. The minimum temperatures also decrease, with December's lows at -4°C (26°F) versus -2°C (30°F) in November. While both months experience precipitation, December has a total of 50 mm (1.9 in) over 6 days, slightly less than November's 63 mm (2.5 in) over 7 days. Humidity levels remain relatively similar, with December at 86% and November at 85%. For more detailed weather information, you can check Tsukuba weather in November.
As December unfurls in Tsukuba, the city bids farewell to the warm embrace of autumn, welcoming a more chilly and moist climate. The temperature dips notably, with the average settling around a brisk 6°C (43°F), contrasting sharply with the mildness of earlier months. Rainfall, totaling 50 mm over a handful of days, adds to the 86% humidity, creating a damp atmosphere that underscores the deepening winter. While occasional sunny spells may offer a brief respite, the overall ambiance becomes increasingly crisp and invigorating. For those planning to explore Tsukuba during this time, it's a period of transition, inviting everyone to indulge in the festive spirit amidst cooler surroundings. For more detailed insights, check out Tsukuba Climate.