January Weather in Tateyama, Japan

Last updated: August 21, 2025

Experience the enchanting January weather of Tateyama, Japan, where temperatures range from a brisk 2°C (36°F) to a pleasant 19°C (66°F), with an average of 10°C (50°F). Visitors can expect a moist atmosphere, with 75 mm (3.0 in) of precipitation spread over 7 days, resulting in a humidity level of 76%. This combination of cool temperatures and occasional rainfall creates a unique opportunity to explore the stunning winter scenery while enjoying the cozy charm of Tateyama.

January Temperature in Tateyama

In January, Tateyama experiences a cool yet inviting winter climate, with temperatures ranging from a chilly 2°C (36°F) at night to a comfortable 19°C (66°F) during the day, averaging around 10°C (50°F). This trend of moderate daytime warmth and crisp night air sets the stage for an enchanting winter landscape. Interestingly, the following months maintain a fairly steady average temperature of 10°C (50°F), with February mirroring January's warmth before gradually shifting into the more temperate spring. As the seasons transition into March and April, temperatures begin to rise, peaking at 21°C (71°F) by late spring—an indication of the vibrant changes on the horizon. Overall, January invites visitors to enjoy a blend of refreshing cold and pleasant sunshine, making it an ideal time to explore Tateyama's stunning winter scenery.

January Weather in Tateyama: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Tateyama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tateyama, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec495055596671778076706354
Data source: Temperature data for Tateyama generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Tateyama

In January, Tateyama experiences modest precipitation, with a total of 75 mm (3.0 in) falling over approximately 7 days. While this marks a relatively dry start to the year compared to the heavier downpours in later months, it sets the stage for a significant increase in rainfall as winter transitions to spring. The subsequent months reveal a clear upward trend, culminating in March's 174 mm (6.8 in), as an average of 14 days of precipitation becomes the norm. This pattern not only highlights Tateyama's changing climate but also exemplifies the region's shift from winter dryness to a lush, rain-soaked spring, laying the groundwork for the vibrant and dynamic seasons that follow.

January Precipitation Trends in Tateyama

The chart displays monthly precipitation patterns in Tateyama, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Tateyama, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec756417413215520622711919730813480
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Tateyama

In January, Tateyama, Japan experiences a relatively high humidity level of 76%, setting the tone for the winter months ahead. As the season transitions into February and March, humidity slightly declines to 74% and 70% respectively, offering a brief respite before the spring. However, as the weather warms up in April and May, the humidity spikes again, reaching 74% in April and peaking at 81% in May. The summer months bring even more humidity, hitting its highest point in July with a staggering 93%, followed closely by August at 90%. This trend of elevated humidity continues into the fall, gradually tapering off to 80% in November and settling at 78% in December. Overall, Tateyama's humidity showcases a clear seasonal pattern, with winter and early spring enjoying lower levels, while summer brings a muggy embrace that lingers into early autumn.

January Average Humidity in Tateyama

This chart illustrates the average monthly humidity levels in Tateyama, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Tateyama is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Tateyama

In Tateyama, Japan, January sees a moderate UV Index of 4, suggesting that while sun exposure is relatively safe, it's still wise to be mindful of the sun, especially with a burn time of just 30 minutes. As winter transitions to spring, February maintains a similar UV level at 5, keeping the exposure category moderate. However, the arrival of March marks a significant shift, with the UV Index skyrocketing to 8, categorized as very high and slashing the burn time to just 15 minutes. The trend continues into April and May, where the UV Index reaches its peak at 10 and 11 respectively, falling under the extreme exposure category and requiring minimal time outside to avoid skin damage. As the summer months roll in, July and August sustain this extreme level, emphasizing the need for sun protection. Interestingly, as autumn approaches, the UV Index declines to 10 in September, then to 5 and 4 in November and December, respectively, illustrating a return to more moderate sun exposure. For more detailed information on UV levels throughout the year, visit Tateyama UV Index.

Maximum UV Index Levels in Tateyama for January

The chart shows the monthly maximum UV Index (UVI) for Tateyama in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Tateyama typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101111111110754
Data source: Tateyama January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Tateyama

In Tateyama, Japan, the transition from January to August unveils a captivating increase in sunshine hours, beginning with a modest 187 hours in January and blossoming to an impressive 297 hours by August. This ascent reflects the early whispers of spring and the full embrace of summer, where each month carries more daylight than the last. Following this peak, sunshine hours gently decline into the autumn months, yet remain comfortably above 200 hours through October and November. December mirrors January's lows, closing the year with 226 hours of sunlight, creating a rhythmic dance of light and shadow throughout Tateyama's seasons.

Monthly Sunshine Duration in Tateyama: January Highlighted

The January sunshine duration represents the total number of hours Tateyama experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec187h224h255h269h286h262h249h297h239h205h226h226h
Data source: Tateyama January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tateyama During January

In Tateyama, Japan, January presents a moderate 51% chance of sunny weather, making it one of the more favorable winter months for those seeking clear skies. As we transition into February, the likelihood of sunshine increases to a pleasant 63%, setting a brighter tone for the season. However, the sunny outlook begins to wane in March, dropping to 42%, and shifts into the spring months where April hovers around 50%. Notably, as the year progresses, the chances of sunshine exhibit a general decline, particularly during the summer months of June and July, where the figures dip to 26% and 38%, respectively. Ultimately, Tateyama's weather trends reflect a distinct seasonal variation, with January standing out as a promising time for sun seekers before the transition into a greyer, more humid landscape in the following months.

Percentage of Sunny Days in January in Tateyama

The chart illustrates the percentage of sunny days in Tateyama throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Tateyama experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec51%63%42%50%27%26%38%41%30%47%60%66%
Data source: Tateyama January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tateyama in January

In Tateyama, Japan, January marks the beginning of the year with a steady 10 hours of daylight, setting a tone that persists through February. However, as spring approaches in March, daylight gradually increases to 11 hours, hinting at the longer days ahead. By April and May, the daylight extends to 13 hours, welcoming the beauty of blooming flowers and warmer temperatures. The peak of summer arrives in June and July, boasting 14 hours of sunlight, providing ample time for outdoor adventures. As August turns to September, there’s a gentle decline to 12 hours, reminding residents that fall is near. The transition continues through October and into November, where daylight shrinks back to 10 hours and eventually to 9 hours by December, ushering in the winter months. This rhythm of daylight not only marks the passing of the seasons but also influences the vibrant lifestyle of Tateyama’s residents.

Average Daylight Hours in Tateyama for January

The chart illustrates the variation in daylight duration in Tateyama throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 4m10h 54m11h 58m13h 4m13h 59m14h 27m14h 13m13h 24m12h 22m11h 16m10h 19m9h 50m
Data source: Tateyama daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Tateyama

In Tateyama, Japan, January ushers in a brisk average wind speed of 7.6 m/s (17 mph), setting a strong tone for the winter months. Following this, February experiences a slight uptick to 8.4 m/s (19 mph), marking the windiest period of winter. As spring approaches, the winds begin to ease, with March and April averaging around 6.9 m/s (16 mph) and 7.0 m/s (16 mph) respectively. Notably, the transition into summer brings a marked drop, with wind speeds plummeting to 4.2 m/s (9 mph) in July, before gradually picking up again in August. The trend offers a fascinating perspective on Tateyama’s seasonal shifts, where the winds reflect the rhythm of nature—from the invigorating gusts of winter to the calmer breezes of summer.

Average January Wind Speed in Tateyama

The chart displays monthly wind speed patterns in Tateyama, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec7.6 m/s8.46.97.07.04.64.26.46.76.97.68.0
Data source: Tateyama January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Tateyama Compares to Other Months

Weather in Tateyama varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Tateyama, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing the weather between January and February, both months exhibit similar temperature ranges, with average highs reaching 19°C (66°F) and lows around 2-3°C (36-38°F). However, January experiences slightly more precipitation at 75 mm (3.0 in) over about 7 days, while February sees a decrease to 63 mm (2.5 in) across 9 days. Additionally, February has marginally lower humidity at 74%, compared to January's 76%. For more detailed weather insights, you can check Tateyama weather in February.

In January, the weather is characterized by cooler temperatures with a minimum of 2°C (36°F) and an average of 10°C (50°F), while March sees a slight increase with minimum temperatures of 5°C (42°F) and an average of 13°C (55°F). Both months reach a maximum of 19°C (66°F), but March experiences significantly more precipitation, recording 174 mm (6.8 in) over 14 days compared to January’s 75 mm (3.0 in) over 7 days. Additionally, humidity is slightly lower in March at 70%, compared to January’s 76%. For more detailed insights, you can visit Tateyama weather in March.

The weather in January is generally cooler, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 19°C (66°F), while April offers a milder climate with temperatures varying from 7°C (45°F) to 21°C (71°F). January experiences about 75 mm (3.0 in) of precipitation over approximately 7 days, while April sees an increase in rainfall, totaling 132 mm (5.2 in) across 10 days. Despite the higher humidity in January at 76%, April's humidity is relatively close at 74%. For those interested in a detailed look at April weather, you can explore the information here: Tateyama weather in April.

In January, the weather is relatively cool, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 19°C (66°F). The month sees about 75 mm (3.0 in) of precipitation spread over seven days, along with a humidity level of 76%. In contrast, May brings warmer conditions, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 23°C (73°F). The amount of precipitation increases significantly to 155 mm (6.1 in) over ten days, accompanied by slightly higher humidity at 81%. For more insights into weather variations, you can visit Tateyama weather in May.

January and June display stark contrasts in weather conditions. In January, temperatures range from a cool 2°C (36°F) to a mild 19°C (66°F), with an average of 10°C (50°F). The month sees about 75 mm (3.0 in) of precipitation over 7 days, accompanied by a humidity level of 76%. In comparison, June experiences much warmer temperatures, with minimums around 17°C (63°F) and maximums reaching 25°C (77°F), averaging 22°C (71°F). This month has significantly more rainfall, totaling 206 mm (8.1 in) across 13 days, and higher humidity at 88%. For further details on June weather, check out Tateyama weather in June.

January and July present stark contrasts in weather. In January, temperatures range from a chilly minimum of 2°C (36°F) to a comfortable maximum of 19°C (66°F), with an average of 10°C (50°F). The month sees moderate precipitation of 75 mm (3.0 in) over about 7 days, accompanied by a relative humidity of 76%. In comparison, July's weather is markedly warmer, with a minimum of 20°C (69°F) and average temperatures around 25°C (77°F), peaking at 28°C (83°F). This month experiences significantly heavier rainfall, totaling 227 mm (8.9 in) across approximately 14 days, and the humidity rises to 93%. For more details on July's climate, check the information here: Tateyama weather in July.

January and August present starkly contrasting weather conditions. In January, temperatures range from a chilly minimum of 2°C (36°F) to a mild maximum of 19°C (66°F), with an average of 10°C (50°F). The month is relatively humid at 76%, with about 75 mm (3.0 in) of precipitation spread over 7 days. In contrast, August boasts much warmer temperatures, with lows around 22°C (72°F) and highs peaking at 30°C (86°F), averaging 27°C (80°F). The humidity rises to 90%, and the month is wetter, receiving 119 mm (4.7 in) of rainfall over approximately 10 days. This substantial difference in temperature and humidity highlights the seasonal shift from the cool, damp winter of January to the warm, humid summer of August. For more detailed insights, check out Tateyama weather in August.

In comparison to January, September presents significantly warmer conditions, with average temperatures soaring from 10°C (50°F) in January to 25°C (77°F) in September. While January features a maximum temperature of 19°C (66°F), September peaks at a much higher 29°C (84°F). Precipitation also varies substantially; January receives 75 mm (3.0 in) over 7 days, while September sees nearly triple that amount at 197 mm (7.8 in) across 17 days, contributing to increased humidity levels of 86% compared to January's 76%. For a detailed look at September weather in the region, you can refer to Tateyama weather in September.

January and October present strikingly different weather conditions. In January, temperatures range from a chilly 2°C (36°F) to a mild 19°C (66°F), with an average temperature of 10°C (50°F). The month experiences about 75 mm (3.0 in) of precipitation over 7 days, accompanied by a humidity level of 76%. In contrast, October boasts significantly warmer temperatures, with a minimum of 15°C (59°F), an average of 21°C (70°F), and a maximum of 27°C (81°F). However, it also brings higher precipitation levels, totaling 308 mm (12.1 in) over 16 days, and slightly increased humidity at 83%. For a more detailed look at the October climate, view Tateyama weather in October.

In comparing January and November, January typically features cooler temperatures, with a minimum of 2°C (36°F) and an average of 10°C (50°F), while November enjoys milder conditions, with a minimum of 8°C (47°F) and an average temperature of 17°C (63°F). Additionally, November experiences significantly more precipitation, totaling 134 mm (5.3 in) over 13 days, compared to January's 75 mm (3.0 in) spread over just 7 days. The humidity levels are also slightly higher in November at 80%, compared to January's 76%. For more detailed information on November weather, you can refer to Tateyama weather in November.

January and December weather exhibit notable differences in temperature, precipitation, and humidity. In January, temperatures typically range from a minimum of 2°C (36°F) to a maximum of 19°C (66°F), with an average of 10°C (50°F). The month sees about 75 mm (3.0 in) of precipitation over 7 days, accompanied by a humidity level of 76%. Conversely, December boasts slightly warmer temperatures, with a minimum of 4°C (40°F) and a maximum of 22°C (71°F), averaging 12°C (54°F). Precipitation is a bit higher, totaling 80 mm (3.1 in) spread over 10 days, and humidity remains slightly elevated at 78%. For more specific details on December weather, you can refer to Tateyama weather in December.

Compare Tateyama's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Tateyama

As January unfolds in Tateyama, the atmosphere shifts noticeably, presenting a cooler and wetter phase compared to the rest of the year. With average temperatures hovering around 10°C (50°F), the month welcomes chilly breezes, contrasted by occasional warmer spells that can reach up to 19°C (66°F). This period also experiences a spike in precipitation, totaling 75 mm (3.0 in) over about seven days, leading to a damp and humid environment, with humidity levels averaging 76%. Unlike the drier summer months, January’s weather contributes to a lush, revitalized landscape, making it a unique time to explore the beauty of Tateyama. For more detailed insights, check out Tateyama Climate.