January Weather in Urayasu, Japan

Last updated: August 21, 2025

In Urayasu, Japan, January presents a chilly yet dynamic climate characterized by a maximum temperature of 17°C (63°F) and an average of 5°C (41°F), dipping to a minimum of -7°C (20°F). Residents and visitors can expect about 49 mm (1.9 in) of precipitation spread over 5 days, contributing to an overall humidity level of 76%. This blend of cool temperatures and occasional rainfall creates a brisk atmosphere, perfect for exploring the city's winter charm.

January Temperature in Urayasu

In Urayasu, Japan, January experiences a notable chill as winter fully settles in. The temperatures fluctuate from a brisk -7°C (20°F) at night, climbing to a relatively mild 17°C (63°F) during the day. On average, the month brings a cool 5°C (41°F), setting the stage for the transition to slightly warmer conditions in February. As winter softly yields to spring, February showcases a slight warming trend, with temperatures swinging between -3°C (27°F) and 19°C (66°F). This gradual increase in warmth serves as a precursor to the more pronounced temperature rise that begins in March, highlighting the shift from the cold winter months toward the pleasant blooms of spring.

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

The chart illustrates January temperature patterns in Urayasu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Urayasu, 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).
JanFebMarAprMayJunJulAugSepOctNovDec414350576772788275655646
Data source: Temperature data for Urayasu generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Urayasu

In January, Urayasu experiences relatively low precipitation, receiving 49 mm (1.9 in) of rain over just 5 days. This marks a distinct contrast to the heavier rainfall of the months that follow. As winter gives way to spring, precipitation steadily increases—March sees a significant jump to 134 mm (5.3 in) over 12 days, heralding the arrival of the wetter season. April and May continue this trend, with rainfall values around 116 mm (4.6 in) and 125 mm (4.9 in), respectively. The peak arrives in July, where the city can expect an impressive 224 mm (8.8 in) of rain over 18 days, leading to a transition into the hot and humid summer months. As the year progresses, January's drier conditions are quickly overshadowed by the more frequent and intense precipitation of subsequent months, demonstrating a clear seasonal shift in Urayasu’s climate.

January Precipitation Trends in Urayasu

The chart displays monthly precipitation patterns in Urayasu, 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 Urayasu, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec49431341161251602241051922619064
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Urayasu

In Urayasu, Japan, January's humidity sits at a noteworthy 76%, marking the start of a trend that shows fluctuating moisture levels throughout the year. As we transition into the following months, humidity generally declines, reaching a low of 70% in March before creeping back up in April. A significant increase begins in the warmer months, with May spiking to 81% and June soaring to a steamy 88%. Peak humidity is observed in the sweltering July at an impressive 93%, followed closely by August. As summer fades, humidity gradually decreases, ending the year on a relatively moderate note in December at 78%. This rhythmic dance of humidity not only shapes the climate but also influences the vibrant seasons in Urayasu.

January Average Humidity in Urayasu

This chart illustrates the average monthly humidity levels in Urayasu, 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 Urayasu 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 Urayasu

In Urayasu, Japan, January ushers in a UV Index of 3, categorizing exposure as moderate with a burn time of 30 minutes. As the months progress, there's a noticeable upward trend in UV levels, sharply peaking to 11 during the summer months of June, July, and August, when the exposure shifts to extreme and burn time plunges to just 10 minutes. The spring and fall months experience varying degrees of UV intensity, with April and May reaching very high levels of 9 and 10 respectively. This gradual escalation emphasizes the importance of sun safety as winter fades and summer approaches, reminding residents to stay vigilant about skin protection. For a more detailed look at UV trends throughout the year, explore Urayasu UV Index.

Maximum UV Index Levels in Urayasu for January

The chart shows the monthly maximum UV Index (UVI) for Urayasu 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 Urayasu typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111119753
Data source: Urayasu 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 Urayasu

In Urayasu, Japan, the sun shines its brightest in August, with an impressive 288 hours of glorious daylight, setting the tone for the season. As winter recedes in the preceding months, January starts modestly with 189 hours, gradually warming up to 230 hours in February. The trend continues to rise as spring approaches, peaking at 270 hours in April before blooming into the lushness of May, which captures 281 hours of sunlight. The warmth begins to wane in the summer months, reflecting a vibrant yet slightly tapering sunshine as July and June yield 238 and 257 hours, respectively. As the year winds down, the daylight gently decreases again, landing at 224 hours in December, ensuring that Urayasu enjoys a well-rounded annual cycle of sunshine, from the soft glow of winter to the vibrant rays of summer.

Monthly Sunshine Duration in Urayasu: January Highlighted

The January sunshine duration represents the total number of hours Urayasu 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.
JanFebMarAprMayJunJulAugSepOctNovDec189h230h256h270h281h257h238h288h234h201h225h224h
Data source: Urayasu January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Urayasu During January

In Urayasu, Japan, January enjoys a 53% chance of sunny weather, making it a promising start to the year. This figure sits comfortably between the sunnier months of February (67%) and the more overcast conditions found in March (41%). As the seasons transition, it's clear that January, while not the sunniest month, still offers a decent likelihood of clear skies compared to the approaching gloom of late winter and early spring. With February leading the chart for sunny days, January paves the way for a brighter outlook, making it a delightful time to explore the vibrant surroundings before the spring blooms.

Percentage of Sunny Days in January in Urayasu

The chart illustrates the percentage of sunny days in Urayasu 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 Urayasu experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%67%41%49%23%23%33%36%27%49%59%63%
Data source: Urayasu January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Urayasu in January

In Urayasu, Japan, January marks the beginning of the year with about 10 hours of daylight, echoing the same duration seen in February. As winter gives way to spring, daylight gradually increases to 11 hours in March and reaches 13 hours by April, creating a palpable sense of optimism. This continues into May and June, where residents enjoy the longest days of the year, basking in 14 hours of sunlight. As summer wanes, the decline in daylight becomes evident, shifting to 13 hours in August and tapering down to 12 hours in September. October sees another dip to 11 hours, while November and December close the year with 10 and 9 hours of daylight, respectively, reminding us of the cyclical nature of the seasons and the rhythmic dance of light and darkness.

Average Daylight Hours in Urayasu for January

The chart illustrates the variation in daylight duration in Urayasu throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 1m10h 52m11h 57m13h 5m14h 2m14h 31m14h 17m13h 27m12h 22m11h 15m10h 16m9h 46m
Data source: Urayasu daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Urayasu

In Urayasu, Japan, January ushers in a gentle breeze with an average wind speed of 3.3 m/s (7 mph), setting the tone for a relatively calm month. This mild wind tends to elevate slightly as the year progresses, with February and March showing a gradual increase to 3.9 m/s (9 mph) and 4.0 m/s (9 mph), respectively. As spring approaches in April, the winds pick up even more, reaching 4.1 m/s (9 mph), before peaking in May at 4.6 m/s (10 mph), marking the most vigorous gusts before the summer months arrive. Following the transition into summer, wind speeds dip again to 2.8 m/s (6 mph) in July, suggesting a more tranquil atmosphere. However, the winds regain strength in late summer and early autumn, stabilizing around 3.6 m/s (8 mph) by September. As the year winds down, the trend returns to more consistent, calmer conditions, with January’s starting winds serving as a reminder of the gentle breezes that characterize this time of year in Urayasu.

Average January Wind Speed in Urayasu

The chart displays monthly wind speed patterns in Urayasu, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.3 m/s3.94.04.14.63.22.84.13.63.73.03.5
Data source: Urayasu January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Urayasu Compares to Other Months

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

In January, the weather typically features a minimum temperature of -7°C (20°F) and an average of 5°C (41°F), with a maximum reaching 17°C (63°F). The month sees about 49 mm (1.9 in) of precipitation over five days, paired with a humidity level of 76%. In contrast, February offers slightly milder conditions, with a minimum of -3°C (27°F), an average of 6°C (44°F), and a maximum of 19°C (66°F). Precipitation drops to 43 mm (1.7 in) across seven days, while humidity remains relatively stable at 74%. For more detailed information, you can check Urayasu weather in February.

January weather tends to be quite chilly, with temperatures ranging from a minimum of -7°C (20°F) to an average of 5°C (41°F) and a maximum of 17°C (63°F). This month typically sees around 49 mm (1.9 in) of precipitation over approximately 5 days, accompanied by a humidity level of 76%. In contrast, March experiences a milder climate, with temperatures rising to a minimum of -2°C (29°F), an average of 10°C (51°F), and a maximum of 22°C (72°F). However, it is also wetter, receiving 134 mm (5.3 in) of precipitation on about 12 days, while the humidity slightly decreases to 70%. For a closer look at March weather in the area, visit Urayasu weather in March.

In January, the weather is generally colder, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 17°C (63°F) and an average of 5°C (41°F). The month sees about 49 mm (1.9 in) of precipitation over 5 days, with a humidity level of 76%. In contrast, April brings much warmer temperatures, with a minimum of 2°C (37°F), an average of 14°C (58°F), and a maximum of 26°C (79°F). April is also wetter, receiving 116 mm (4.6 in) of precipitation spread over 10 days, while humidity remains slightly lower at 74%. For more details on April weather, you can check Urayasu weather in April.

January weather is characterized by chilly temperatures, with a minimum of -7°C (20°F) and an average of 5°C (41°F), peaking at 17°C (63°F). The month experiences about 49 mm (1.9 in) of precipitation over five days, accompanied by a humidity level of 76%. In contrast, May brings much warmer conditions, featuring minimum temperatures of 8°C (47°F) and an average of 19°C (67°F), reaching highs of 30°C (87°F). Rainfall increases significantly to 125 mm (4.9 in) over twelve days, with humidity rising slightly to 81%. This shift in weather highlights the transition from the cold and drier winter months to the warmer and wetter spring season. For a more detailed look at May weather, check out Urayasu weather in May.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 17°C (63°F) and an average of 5°C (41°F). The month typically sees around 49 mm (1.9 in) of precipitation, falling on about 5 days, while humidity hovers around 76%. In stark contrast, June brings much warmer and more humid conditions, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 33°C (91°F) and an average of 22°C (72°F). Rainfall significantly increases to 160 mm (6.3 in) over about 14 days, with humidity rising to 88%. For a closer look at the weather in June, check out Urayasu weather in June.

In January, the weather is significantly cooler, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 17°C (63°F) and an average of 5°C (41°F). The month sees about 49 mm (1.9 in) of precipitation over 5 days, accompanied by a humidity level of 76%. In contrast, July experiences much warmer conditions, with temperatures ranging from a minimum of 18°C (65°F) to a scorching maximum of 37°C (99°F) and an average of 26°C (79°F). Precipitation increases dramatically to 224 mm (8.8 in) over 18 days, and humidity also rises, reaching 93%. This stark contrast illustrates the transition from the cold, dry winter to the hot, humid summer in Urayasu. For a detailed look at the weather in July, check out Urayasu weather in July.

January and August present stark contrasts in weather patterns. In January, temperatures are much cooler, with a minimum of -7°C (20°F) and an average of only 5°C (41°F), while August boasts much warmer conditions, showcasing a minimum of 18°C (65°F) and an average of 28°C (82°F). Precipitation also differs significantly; January sees about 49 mm (1.9 in) over 5 days, whereas August experiences a higher rainfall of 105 mm (4.1 in) across 13 days. The humidity peaks in August at 90%, compared to January's 76%, adding to the sweltering summer atmosphere. For more detailed information, you can check Urayasu weather in August.

January and September present stark contrasts in weather. In January, temperatures hover around a chilly average of 5°C (41°F), with lows dipping to -7°C (20°F) and highs reaching just 17°C (63°F). This month sees relatively low precipitation levels, with 49 mm (1.9 in) falling over five days, accompanied by a humidity of 76%. In contrast, September experiences significantly warmer conditions, showcasing an average temperature of 24°C (75°F) and highs soaring up to 34°C (93°F). This month is also much wetter, with 192 mm (7.6 in) of rain spread across 16 days and a higher humidity of 86%. For more specific details, you can check Urayasu weather in September.

January and October present a stark contrast in weather conditions. In January, temperatures typically range from a minimum of -7°C (20°F) to a maximum of 17°C (63°F), with an average of 5°C (41°F). The month receives about 49 mm (1.9 in) of precipitation over approximately five days, and humidity levels hover around 76%. In contrast, October boasts milder temperatures, with a minimum of 8°C (47°F) and a maximum of 30°C (87°F), leading to an average of 19°C (66°F). However, it is also a wetter month, receiving 261 mm (10.3 in) of rainfall over 15 days, accompanied by higher humidity at 83%. For a closer look at October weather patterns, visit Urayasu weather in October.

When comparing the weather in January and November, notable differences emerge. January is characterized by colder temperatures, with an average of 5°C (41°F) and a minimum reaching as low as -7°C (20°F). In contrast, November offers a milder climate, featuring an average temperature of 13°C (56°F) and a minimum of 2°C (35°F). In terms of precipitation, January sees about 49 mm (1.9 in) over 5 days, while November experiences significantly more rainfall, totaling 90 mm (3.5 in) across 10 days. Additionally, humidity levels are slightly higher in November at 80% compared to January's 76%. For more details on November weather, you can visit Urayasu weather in November.

January and December present distinct weather patterns, with January generally colder than December. In January, the minimum temperature can drop to -7°C (20°F), while December's worst is slightly warmer at -2°C (28°F). January has an average temperature of 5°C (41°F) compared to December's average of 8°C (46°F), and the maximum temperature reaches 17°C (63°F) in January, whereas December sees a maximum of 21°C (70°F). Precipitation is also noteworthy; January records 49 mm (1.9 in) over 5 days, while December experiences slightly more with 64 mm (2.5 in) over 7 days. Humidity levels in January average at 76%, which is just a touch lower than December’s 78%. For more details on December weather, you can visit Urayasu weather in December.

Compare Urayasu's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Urayasu

January in Urayasu presents a distinct chill compared to the milder months that precede it. With average temperatures hovering around 5°C (41°F) and occasional dips to as low as -7°C (20°F), it’s the coldest month of the year. While January sees about 49 mm of precipitation over just a handful of days, the overall humidity remains relatively high at 76%, adding to the crisp air. This contrasts sharply with the warmer, more temperate conditions of spring, making January a unique time to experience the serene beauty of Urayasu’s winter landscape. For a more comprehensive understanding of the weather patterns throughout the year, explore Urayasu Climate.