January Weather in Kawagoe, Japan

Last updated: August 21, 2025

January in Kawagoe, Japan presents a captivating blend of winter chill and occasional warmth, with temperatures ranging from a maximum of 18°C (65°F) to a minimum of -6°C (22°F). This month sees an average temperature of 5°C (40°F), making layered clothing essential for outdoor explorations. While the city experiences around 41 mm (1.6 in) of precipitation over just 4 days, a humidity level of 76% often accompanies the winter air. Whether you're wandering through historic streets or indulging in seasonal delights, January in Kawagoe promises a unique experience of Japan's winter charm.

January Temperature in Kawagoe

January in Kawagoe, Japan is characterized by a noticeable chill, with temperatures ranging from a brisk -6°C (22°F) at night to a comfortable daytime high of 18°C (65°F). As winter settles in, the average temperature hovers around 5°C (40°F), marking one of the coldest months of the year. This contrast in temperatures hints at the seasonal transition, as February brings slightly milder conditions, with lows of -5°C (24°F) and highs reaching 21°C (71°F). The gradual warming trend continues into March, where the average climbs to 10°C (50°F), signaling a shift towards the spring months ahead. Overall, January serves as a reminder of winter's grasp before spring begins to emerge, offering a taste of the more temperate weather that follows.

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

The chart illustrates January temperature patterns in Kawagoe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kawagoe, 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).
JanFebMarAprMayJunJulAugSepOctNovDec404350586773798375655545
Data source: Temperature data for Kawagoe 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 Kawagoe

In January, Kawagoe experiences relatively low precipitation, with just 41 mm (1.6 in) evenly spread over 4 days. This sets the tone for the winter months, where precipitation remains modest as the region transitions to spring. Notably, February closely mirrors January with 40 mm (1.6 in) over 6 days, maintaining a steady pattern. As spring approaches in March, rainfall increases significantly to 120 mm (4.7 in), signaling the onset of the wetter season. From March to June, the trend continues upwards, peaking in July at a substantial 240 mm (9.5 in) during the summer months. This observed pattern indicates a shift from light winter precipitation to a much wetter and more dynamic weather landscape as the year progresses.

January Precipitation Trends in Kawagoe

The chart displays monthly precipitation patterns in Kawagoe, 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 Kawagoe, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec41401201101101492401191852585442
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Kawagoe

In January, Kawagoe experiences a moderate humidity level of 76%, setting the stage for a winter characterized by a crisp but slightly damp atmosphere. This humidity begins to decline in February to 74%, offering a brief respite before gradually rising again as the seasons transition. By March and April, humidity stabilizes around 70% and 74%, signaling the approach of spring. As we move into May, the humidity surges to 81%, heralding the onset of warmer weather. The summer months see a significant spike, with July and August reaching peak humidity levels of 93% and 90% respectively, creating a lush and vibrant environment. Following the summer peak, humidity gradually decreases through September (86%) and October (83%), settling at a cozy 80% in November before the cycle repeats with a return to 78% in December. Overall, the trend illustrates a dynamic fluctuation in humidity, marking each season with its unique characteristics and challenges.

January Average Humidity in Kawagoe

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

In Kawagoe, Japan, January sees a UV Index of 3, classified as moderate, which means you can safely enjoy outdoor activities for about 30 minutes without risk of skin damage. As winter transitions into spring, the UV levels begin to rise; by February, the index increases to 5 while maintaining the same exposure time. This upward trend becomes more pronounced in March through May, where the UV Index peaks at 10 in both May and June, indicating a very high risk of harm from unprotected sun exposure, with burn times dropping to just 15 minutes. As summer approaches in July, the risk escalates further to an extreme level of 11, necessitating even shorter exposure times of 10 minutes. After the peak, the index gently declines into the fall months, with November and December returning to moderate levels of 5 and 3, respectively. To stay informed about UV levels throughout the year, check the comprehensive insights at Kawagoe UV Index.

Maximum UV Index Levels in Kawagoe for January

The chart shows the monthly maximum UV Index (UVI) for Kawagoe 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 Kawagoe typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101011109753
Data source: Kawagoe 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 Kawagoe

In Kawagoe, Japan, January marks the beginning of the year with 193 hours of sunlight, a cozy prelude to the sunnier months ahead. As winter gives way to spring, February and March witness a steady increase, reaching 240 and 264 hours of sunshine respectively, as the promise of warmth lingers in the air. April continues this upward trend, peaking at 278 hours, while May embraces the full bloom of spring with an impressive 283 hours of sunshine. The summer months, though slightly less radiant, still offer ample sunlight, with June delivering 263 hours. As the year progresses into the softer light of autumn, sunshine hours gradually taper off, showcasing the cyclical nature of Kawagoe's climate, where the zenith of brightness in May gives way to the gentle embrace of fall, revealing 206 hours in October and settling at 235 hours in November, before concluding the year with 234 hours in December. This rhythmic dance of sunlight reflects the vibrant transitions of nature, highlighting the charm of each season in this picturesque locale.

Monthly Sunshine Duration in Kawagoe: January Highlighted

The January sunshine duration represents the total number of hours Kawagoe 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.
JanFebMarAprMayJunJulAugSepOctNovDec193h240h264h278h283h263h232h281h234h206h235h234h
Data source: Kawagoe January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kawagoe During January

In Kawagoe, Japan, the likelihood of sunny weather in January stands at a moderate 56%, making it a promising start to the year. This probability is notably lower than the sunnier months of February, which boasts a 72% chance, and November, with 62%. However, January's sunshine potential surpasses the cloudier spring months of March and April, which see a decline in sunny days with only 43% and 50%, respectively. Interestingly, the trend of increasing sunshine continues into February before tapering off in the summer months, suggesting that January serves as a transitional period from the cooler, brisk days of winter toward a sunnier spring. This balance of bright and overcast days can provide a delightful variety for both locals and visitors alike.

Percentage of Sunny Days in January in Kawagoe

The chart illustrates the percentage of sunny days in Kawagoe 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 Kawagoe experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec57%73%43%50%25%22%27%32%26%50%62%69%
Data source: Kawagoe January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kawagoe in January

In Kawagoe, Japan, the transition from winter to spring is marked by a gradual increase in daylight duration. In January, residents can enjoy about 9 hours of daylight, but as the month progresses into February, it extends to 10 hours. This upward trend continues into March, with daylight reaching 11 hours, heralding the arrival of warmer weather. By April, the days grow even longer, offering approximately 13 hours of light, while May sees a peak at 14 hours, coinciding with the vibrant blooms of spring. The daylight remains consistent through June and July, providing ample opportunity for outdoor activities. As summer transitions to autumn in August, the daylight begins to taper off to 13 hours, gradually decreasing through the fall months—12 hours in September, 11 hours in October, and back down to 10 hours in November. Finally, the cycle completes itself as December ushers in a return to 9 hours of daylight, preserving that familiar winter chill. This rhythmic pattern emphasizes the beautiful, cyclical nature of Kawagoe's seasons, with each month offering its own unique experience of light.

Average Daylight Hours in Kawagoe for January

The chart illustrates the variation in daylight duration in Kawagoe throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 59m10h 51m11h 57m13h 6m14h 4m14h 33m14h 18m13h 28m12h 22m11h 14m10h 15m9h 44m
Data source: Kawagoe daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Kawagoe

In January, Kawagoe experiences a gentle breeze with an average wind speed of 2.5 m/s (6 mph), setting a serene tone for the month. This softness in the wind contrasts with the slightly brisker gusts that follow in February and March, where wind speeds increase to 3.2 m/s (7 mph). As spring approaches, April sees a modest drop to 2.9 m/s (6 mph), while May maintains this calming trend at 2.8 m/s (6 mph). The summer months bring a notable reduction, with July experiencing the calmest winds at just 1.8 m/s (4 mph). As the seasons shift towards autumn, the winds gradually regain strength, with October and November averaging around 2.4 m/s (5 mph), before capping the year off in December with a refreshing 2.7 m/s (6 mph). Overall, the wind patterns in Kawagoe reflect a seasonal ebb and flow, inviting both tranquility in the winter months and a lively atmosphere as the year progresses.

Average January Wind Speed in Kawagoe

The chart displays monthly wind speed patterns in Kawagoe, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.5 m/s3.23.22.92.82.31.82.52.12.42.12.7
Data source: Kawagoe January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Kawagoe Compares to Other Months

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

In comparing the weather between January and February, both months exhibit a similar range in temperature with February being slightly warmer on average. January sees minimum temperatures plunge to -6°C (22°F) and an average high of 18°C (65°F), while February registers minimums of -5°C (24°F) and an average high that peaks at 21°C (71°F). Precipitation levels are comparable, with January experiencing 41 mm (1.6 in) over 4 days, whereas February sees a marginally lower amount of 40 mm (1.6 in) spread over 6 days. Additionally, humidity remains fairly consistent with January at 76% and February slightly lower at 74%. For more detailed information, you can visit Kawagoe weather in February.

January tends to be colder and drier compared to March, with average temperatures ranging from a chilly -6°C (22°F) to a more comfortable 5°C (40°F), peaking at 18°C (65°F). It experiences only four days of precipitation, totaling 41 mm (1.6 in) and maintaining a humidity level of 76%. In contrast, March brings a noticeable warming trend, with minimum temperatures around -3°C (26°F) and an average of 10°C (50°F), reaching highs of 25°C (78°F). However, it is wetter, with precipitation occurring on ten days and accumulating to 120 mm (4.7 in), while humidity slightly decreases to 70%. For a detailed look at March weather, you can visit Kawagoe weather in March.

In comparing the weather between January and April, there is a notable shift in temperature and precipitation patterns. January experiences colder temperatures, with a minimum of -6°C (22°F) and an average of 5°C (40°F), peaking at 18°C (65°F). Additionally, it has relatively low precipitation, totaling 41 mm (1.6 in) over 4 days, and a higher humidity level at 76%. In contrast, April brings milder conditions, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 29°C (84°F), and an average of 14°C (58°F). This month also sees increased precipitation, reaching 110 mm (4.3 in) over 10 days, while humidity remains slightly lower at 74%. For more detailed information about April conditions, you can visit Kawagoe weather in April.

When comparing the weather in January and May, there is a noticeable shift in temperature and precipitation patterns. In January, temperatures range from a chilly -6°C (22°F) at their lowest to a mild maximum of 18°C (65°F), with an average of 5°C (40°F). The month sees a total precipitation of 41 mm (1.6 in) spread over just 4 days and maintains a humidity level of 76%. In contrast, May brings much warmer weather, with temperatures starting at a minimum of 6°C (42°F) and rising to a hot maximum of 33°C (92°F), averaging at 20°C (68°F). Precipitation increases significantly to 110 mm (4.3 in) across 12 days, along with a slight rise in humidity to 81%. For more details on May's climate, you can check Kawagoe weather in May.

In January, the weather is quite brisk, with temperatures ranging from a chilly -6°C (22°F) to a mild 18°C (65°F) and an average of around 5°C (40°F). The month experiences relatively low precipitation, totaling 41 mm (1.6 in) over just four days, and the humidity sits at a moderate 76%. In contrast, June brings a dramatic shift, characterized by much warmer temperatures that range from a minimum of 13°C (56°F) to a maximum of 34°C (93°F), with an average of 23°C (73°F). This month sees heavier rainfall, accumulating 149 mm (5.9 in) over 15 days, and higher humidity levels at 88%. For more details on the unique weather patterns, visit Kawagoe weather in June.

The weather in January is characterized by cold temperatures, with minimums dropping to -6°C (22°F) and average highs around 5°C (40°F). This month experiences relatively low precipitation, totaling 41 mm (1.6 in) over about 4 days, and the humidity is a moderate 76%. In stark contrast, July brings warm temperatures, with minimums of 17°C (63°F) and average highs reaching 26°C (80°F), occasionally peaking at a sweltering 39°C (103°F). This summer month sees significant rainfall, accumulating 240 mm (9.5 in) across approximately 19 days, along with high humidity levels of 93%. For more details about weather conditions in Kawagoe during July, please visit Kawagoe weather in July.

The weather in January and August presents a striking contrast in terms of temperature and humidity. In January, temperatures can dip as low as -6°C (22°F), with an average of 5°C (40°F) and a maximum of 18°C (65°F). Precipitation is relatively low, with only 41 mm (1.6 in) over four days and humidity at a comfortable 76%. In stark contrast, August brings much warmer conditions, with minimum temperatures starting at 17°C (63°F) and averaging 28°C (83°F), peaking at a scorching 37°C (99°F). Precipitation also increases significantly to 119 mm (4.7 in) over 13 days, accompanied by higher humidity levels at 90%. This dramatic seasonal shift highlights the transition from winter's chill to summer’s warmth. For more details on August weather in the region, you can visit Kawagoe weather in August.

The comparison between January and September weather reveals a striking contrast. In January, temperatures are much colder, with minimums dropping to -6°C (22°F) and an average of just 5°C (40°F), while precipitation is relatively low at 41 mm (1.6 in) over 4 days. The humidity is moderate at 76%. In contrast, September boasts a much warmer climate, with minimum temperatures around 13°C (55°F) and an average of 24°C (75°F), peaking at a high of 36°C (97°F). However, this month also brings significant rainfall, totaling 185 mm (7.3 in) across 18 days, accompanied by higher humidity levels of 86%. For more detailed information, check out this link: Kawagoe weather in September.

In January, the weather is quite chilly, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of only 18°C (65°F), and an average of 5°C (40°F). Precipitation is relatively low at 41 mm (1.6 in), occurring over just four days, while humidity sits at 76%.

In contrast, October experiences significantly warmer temperatures, ranging from a minimum of 6°C (44°F) to a pleasant maximum of 31°C (88°F), with an average of 18°C (65°F). However, it is also much wetter, with precipitation reaching 258 mm (10.2 in) across 15 days, and humidity rises slightly to 83%. For more details on October weather in Kawagoe, visit Kawagoe weather in October.

When comparing the weather in January and November, notable differences emerge. January typically experiences colder temperatures, with a minimum of -6°C (22°F) and an average of 5°C (40°F), while November boasts milder conditions, with temperatures ranging from a minimum of -1°C (31°F) to an average of 13°C (55°F). Additionally, November sees more precipitation, totaling 54 mm (2.1 in) across about 7 days, compared to January's 41 mm (1.6 in) over just 4 days. Humidity is slightly higher in November at 80% compared to January's 76%. For more details on the November climate, you can check out Kawagoe weather in November.

In comparing the weather of January and December, January typically experiences a slightly colder range, with average temperatures around 5°C (40°F) compared to December's 7°C (45°F). The minimum temperature in January can drop to -6°C (22°F), making it chillier than December's minimum of -3°C (26°F). Despite both months receiving similar amounts of precipitation—41 mm (1.6 in) in January and 42 mm (1.6 in) in December—January sees precipitation on four days, while December experiences it on five days. Additionally, humidity levels are very comparable, with January at 76% and December at 78%. For a more detailed look at December's weather, check out Kawagoe weather in December.

Compare Kawagoe's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Kawagoe

As January settles over Kawagoe, cold temperatures dominate the landscape, contrasting sharply with the warmer months that follow. While daytime highs can reach a mild 18°C, the nights plunge to a chilling -6°C, creating a significant temperature variance that dictates a more subdued outdoor experience. The occasionally wet conditions, with about 41 mm of precipitation across just a few days, suggest that January is also one of the more damp months, although not excessively so. The high humidity level of 76% adds to the brisk atmosphere, making for an intriguing blend of chilly air and moisture. For those interested in deeper insights into the unique weather patterns of this historic town, explore Kawagoe Climate.