Last updated: August 21, 2025
In January, Tsukuba, Japan experiences a diverse range of weather, with temperatures fluctuating between a maximum of 17°C (63°F) and a minimum of -10°C (14°F), yielding an average of 4°C (39°F). Visitors can expect a humid atmosphere, with humidity levels around 88%. This month also sees approximately 38 mm (1.5 in) of precipitation over about 4 days, making it a unique blend of chilly and damp conditions. The weather presents both challenges and beauty, encouraging exploration of Tsukuba’s winter landscapes.
In January, Tsukuba, Japan, experiences a dramatic temperature range, with minimums plummeting to -10°C (14°F). This month witnesses an average temperature of 4°C (39°F), suggestive of chilly days, yet it can peak at a surprisingly mild 17°C (63°F) on warmer occasions. As the winter season transitions into February, temperatures gradually rise, marking a notable shift with minimums hovering around -5°C (23°F) and average highs reaching 21°C (70°F) by the end of the month. This trend continues into March, where early signs of spring become apparent, with average temperatures climbing to 9°C (49°F). Overall, January serves as a striking contrast to the milder February and March, setting a sharp tone for the winter months ahead and ushering in the gradual warmth of spring.
In January, Tsukuba experiences a relatively dry start to the year with just 38 mm (1.5 in) of precipitation spread over a mere 4 days. This sets the stage for a gradual increase in rainfall as winter transitions into spring. February sees a slight dip in precipitation, while March marks a noticeable surge, with rainfall dramatically increasing to 124 mm (4.9 in) over 11 days. This upward trend continues through the months, peaking in July with a hefty 218 mm (8.6 in) over 20 days, illustrating the region's shift towards a wetter summer pattern. As the year progresses, precipitation remains substantial, particularly in the late summer and early autumn months, followed by a consistent decline into the winter, ultimately creating a dynamic weather cycle that defines Tsukuba's climate.
In January, Tsukuba, Japan experiences a notably high humidity level of 88%, setting the stage for the winter months. This trend continues into February, where humidity dips slightly to 86%, but remains comfortably elevated. As spring approaches in March and April, humidity begins to decline, reaching 81% and 78%, respectively, providing a pleasant respite. However, as the summer months set in, humidity makes a comeback, soaring to 88% in June and peaking at an impressive 92% in both July and August. Following this humid high, September sees a gentle decrease to 89%, while October and November stabilize around 87% and 85%. By December, humidity returns to 86%, completing the cycle. This pattern reveals a distinct seasonal rhythm in Tsukuba's humidity levels, embracing both lush summers and crisp winters.
In January, Tsukuba, Japan experiences a moderate UV Index of 3, indicating a burn time of around 30 minutes for unprotected skin. As the months progress, the UV Index steadily climbs, reaching 5 in February, before escalating sharply to 7 in March. By April and May, the index reaches very high levels of 9 and 10, respectively, significantly reducing burn time to just 15 minutes. The trend continues through the summer months, peaking at an extreme UV Index of 11 in July, where safe exposure drops to just 10 minutes. Interestingly, as autumn approaches, the UV Index gradually declines, returning to moderate levels in November and December. These fluctuations highlight the importance of being vigilant with sun protection year-round. For a detailed look at the UV Index throughout the year, visit Tsukuba UV Index.
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January ushers in 188 hours of sunshine in Tsukuba, Japan, marking the start of the year with a gentle glow that slowly brightens as the months progress. The sunshine gradually intensifies, peaking in May with an impressive 274 hours, inviting outdoor activities and vibrant blooms. As spring transitions to summer, the sun gilds Tsukuba in April and May, while June sees a slight decrease to 253 hours. Interestingly, the summer months experience a dip, with July at 224 hours and August at 265 hours, hinting at the seasonal shifts in weather patterns. As autumn arrives, the daylight starts to wane again, stabilizing around the 200-hour mark in October before recovering slightly in November and December. This annual dance of daylight not only highlights the beauty of Tsukuba’s changing seasons but also invigorates the spirit of its residents throughout the year.
In Tsukuba, Japan, January offers a moderate 55% chance of sunny weather, making it a promising start to the year. As winter transitions into early spring, the likelihood of sunshine increases significantly in February to 71%, before dipping again in March to 42%. This trend suggests a notable fluctuation in sunlight during the first quarter, with January providing a balance between brightness and overcast days. Interestingly, the days following January tend to offer more unpredictable weather patterns, with lower probabilities of sun peaking during the humid summer months. Overall, those hoping for a sunny January can expect a decent chance of enjoying clear skies amidst the winter chill.
In Tsukuba, Japan, January marks the beginning of a gradual increase in daylight, with the city basking in approximately 9 hours of sunlight. As the months progress into February and March, residents enjoy an additional hour each month, leading to a 11-hour daylight stretch by the time spring arrives. This upward trend continues into the warmer months, peaking in May and June at a generous 14 hours of daylight. However, as summer fades, daylight begins to wane, transitioning from 13 hours in August to 12 hours in September. The descent continues as autumn takes hold, with daylight dwindling to 10 hours in November and retreating back to 9 hours by December, creating a beautiful rhythm that characterizes Tsukuba's year-round natural light cycle.
In January, Tsukuba, Japan experiences a gentle breeze with an average wind speed of 2.3 m/s (5 mph), setting the tone for a calm winter month. As the seasons transition, there’s a noticeable uptick in wind speeds through February and April, peaking at 2.9 m/s (6 mph) in April, suggesting a refreshing shift as spring approaches. Following this peak, the winds begin to mellow again during the summer months, reaching their lowest in July at 1.9 m/s (4 mph), emphasizing the tranquil, sweltering heat of the season. Interestingly, wind speeds pick up slightly again in August, hinting at the upcoming autumn. As the year winds down, November brings a dip to 2.0 m/s (4 mph), while December stabilizes at 2.4 m/s (5 mph), encapsulating a year of fluctuating yet moderate winds that evoke the serene beauty of Tsukuba's climate.
Weather in Tsukuba varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Tsukuba, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures in Tsukuba are typically cooler, with a minimum of -10°C (14°F) and an average of 4°C (39°F), reaching up to 17°C (63°F). The precipitation is about 38 mm (1.5 in) over four days, accompanied by high humidity levels at 88%. In contrast, February sees slightly milder conditions, with minimum temperatures around -5°C (23°F) and an average of 5°C (42°F), peaking at 21°C (70°F). While precipitation remains similar at 37 mm (1.5 in), it occurs on six days, with humidity slightly lower at 86%. For more detailed information, you can check Tsukuba weather in February.
In January, the weather in Tsukuba is quite cold, with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 17°C (63°F), resulting in an average of 4°C (39°F). The month experiences relatively low precipitation, totaling 38 mm (1.5 in) over just 4 days, alongside high humidity at 88%.
By March, the weather begins to warm significantly, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 24°C (76°F) and an average temperature of 9°C (49°F). However, March sees a notable increase in precipitation, with 124 mm (4.9 in) spread across 11 days, and humidity slightly decreases to 81%. For a more detailed look at March weather, visit Tsukuba weather in March.
January weather in Tsukuba can be quite cold, with minimum temperatures dropping to -10°C (14°F) and an average high of just 17°C (63°F). The month sees relatively low precipitation, totaling 38 mm (1.5 in) over only 4 days, combined with high humidity levels averaging 88%. In stark contrast, April marks the arrival of spring with much milder temperatures; minimums hover around -1°C (31°F), while average highs can reach 29°C (84°F). However, it also brings significantly more rainfall, with 112 mm (4.4 in) expected over 11 days, and slightly lower humidity levels of 78%. For more detailed insights on April weather, you can check Tsukuba weather in April.
In January, the weather is characterized by cold temperatures, with a minimum of -10°C (14°F) and an average of 4°C (39°F), reaching a maximum of 17°C (63°F). The month experiences limited precipitation, totaling 38 mm (1.5 in) over just 4 days, while humidity remains high at 88%. In contrast, May brings a significant warm-up, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 34°C (93°F), averaging 19°C (67°F). However, May is also wetter, receiving 123 mm (4.8 in) of rain over 12 days, and humidity drops slightly to 81%. For more details on the weather in this month, check Tsukuba weather in May.
January and June present striking contrasts in weather patterns. In January, temperatures can be quite frigid, ranging from a minimum of -10°C (14°F) to a maximum of 17°C (63°F), with an average of 4°C (39°F). The month experiences relatively low rainfall, totaling 38 mm (1.5 in) across only 4 days, while humidity remains high at 88%. Conversely, June brings significantly warmer weather with temperatures varying from a minimum of 12°C (55°F) to a maximum of 33°C (92°F), averaging around 22°C (72°F). This month sees a considerable increase in precipitation, totaling 132 mm (5.2 in) over 16 days, while humidity remains consistent at 88%. For a detailed look at what to expect, you can visit Tsukuba weather in June.
January and July present stark contrasts in weather. In January, temperatures range from a chilly minimum of -10°C (14°F) to a mild maximum of 17°C (63°F), with an average temperature of about 4°C (39°F). Precipitation is relatively low at 38 mm (1.5 in) spread over just 4 days, and humidity is high at 88%. In contrast, July experiences much warmer conditions, with minimum temperatures starting at 17°C (63°F) and soaring to a maximum of 37°C (98°F), averaging around 26°C (79°F). The month is significantly wetter, with 218 mm (8.6 in) of rain over 20 days and even higher humidity at 92%. For a more detailed look at July weather in this region, visit Tsukuba weather in July.
January and August present contrasting weather patterns. In January, temperatures range from a chilling minimum of -10°C (14°F) to a maximum of 17°C (63°F), with an average of 4°C (39°F). The month is characterized by lower precipitation at 38 mm (1.5 in) over just 4 days, but the humidity is quite high at 88%. In stark contrast, August experiences much warmer weather, with temperatures varying from a minimum of 17°C (62°F) to a scorching maximum of 37°C (98°F), averaging 28°C (82°F). Precipitation significantly increases to 114 mm (4.5 in) over 14 days, alongside a slight rise in humidity to 92%. For more detailed information, you can visit Tsukuba weather in August.
In January, the weather is much colder, with temperatures ranging from a chilly -10°C (14°F) at night to a mild maximum of 17°C (63°F) during the day. The month sees minimal precipitation, averaging only 38 mm (1.5 in) over 4 days, and the humidity hovers around 88%. In contrast, September experiences significantly warmer conditions, with temperatures starting at a minimum of 12°C (54°F) and reaching up to 35°C (95°F). However, this month is also wetter, accumulating 157 mm (6.2 in) of rainfall over 17 days, while humidity remains relatively high at 89%. For more detailed insights into September's climate, visit Tsukuba weather in September.
In January, temperatures in Tsukuba can drop as low as -10°C (14°F), with an average temperature of around 4°C (39°F) and a maximum of 17°C (63°F). The month typically experiences about 38 mm (1.5 in) of precipitation over four days, maintaining high humidity levels at 88%. In contrast, October brings much milder weather, with minimum temperatures around 6°C (42°F) and an average of 18°C (64°F), peaking at 32°C (90°F). However, October also sees significantly higher rainfall, with approximately 225 mm (8.8 in) spread across 14 days, and humidity levels remain comparable at 87%. For more details on October weather, check out Tsukuba weather in October.
In comparing the weather between January and November, notable differences emerge. January tends to be significantly colder, with temperatures ranging from a minimum of -10°C (14°F) to a maximum of 17°C (63°F), while November offers milder conditions, with temperatures fluctuating between -2°C (30°F) and 23°C (74°F). Additionally, November experiences higher precipitation, averaging 63 mm (2.5 in) over 7 days compared to January’s 38 mm (1.5 in) across just 4 days. However, both months maintain high humidity levels, with January at 88% and November slightly lower at 85%. For further details, check out Tsukuba weather in November.
In January, the weather is notably colder compared to December, with average temperatures ranging from a minimum of -10°C (14°F) to a maximum of 17°C (63°F). In contrast, December experiences milder conditions, with temperatures varying from -4°C (26°F) to a high of 20°C (68°F). While both months see some precipitation, January receives less at 38 mm (1.5 in) over four days, whereas December has a higher total of 50 mm (1.9 in) over six days. Humidity levels are quite similar, with January at 88% and December slightly lower at 86%. For more details, you can check Tsukuba weather in December.
As January wraps Tsukuba in a chill, it stands out from the rest of the year with its brisk temperatures that can drop to a frigid -10°C while averaging around 4°C. This month brings a blend of winter warmth and cold snaps, often accompanied by high humidity levels reaching 88%, making the air feel even cooler. Unlike other months that may experience more precipitation, January has its rainfall spread over just a few days, totaling about 38 mm. Embrace this unique winter experience in Tsukuba, and for a deeper understanding of the city's climate, visit Tsukuba Climate.