Last updated: August 21, 2025
January in Yokohama, Japan brings a chilly embrace as temperatures fluctuate between a maximum of 8°C (46°F) and a minimum of -7°C (19°F), leading to an average of 1°C (34°F). This month is characterized by a notable 79% humidity, making the air feel particularly brisk. With 97 mm (3.8 in) of precipitation spread across 19 days, residents and visitors alike should expect frequent showers that contribute to the city's vibrant winter scenery. Bundle up and enjoy the unique charm of Yokohama in January!
January in Yokohama, Japan, marks the heart of winter, where temperatures can dip as low as -7°C (19°F), creating a crisp, chilly atmosphere. With an average temperature hovering around 1°C (34°F), residents and visitors alike experience a mix of cool days and occasional frosty nights. The month features daytime highs reaching up to 8°C (46°F), making it one of the colder months of the year. As January transitions into February, a slight downward trend in temperatures is noted, with averages dropping further, yet the overall character remains consistent with chilly air and bright winter skies. This month presents a unique blend of serene beauty and refreshing cold, ideal for those who appreciate a quieter, cooler season in one of Japan's vibrant cities.
In Yokohama, Japan, January typically ushers in a month of moderate precipitation, with an average of 97 mm (3.8 in) falling over 19 days. While not the rainiest month of the year, January sets the stage for a generally damp winter, preceding a rise in rainfall through February and March. Notably, February sees an increase to 108 mm (4.3 in) over 21 days, highlighting a trend of increasing precipitation that continues into the spring months. Comparatively, January's rainfall amount is slightly less than the robust totals that characterize the summer months, especially August, which can exceed 203 mm (8.0 in). This pattern illustrates a seasonal transition where winter's mild rainfall gives way to the heavier downpours of late summer, making January a pivotal start to Yokohama's hydrological year.
In January, Yokohama experiences a relatively high humidity level of 79%, marking the beginning of a gradual upward trend that peaks in the warmer months. As winter transitions into spring, humidity slightly decreases, reaching 77% in March, before rising again as spring blooms into summer. By May, the city encounters a notable jump to 86%, leading into the sweltering summer months characterized by increasingly high humidity; July and August see levels soaring to 95% and a staggering 97%, respectively. This peak in humidity starts to wane with the arrival of autumn, where September remains quite humid at 89%, followed by a gradual decline throughout the fall months, settling at 77% in December. Overall, Yokohama's humidity reflects a significant seasonal pattern, with wetter conditions dominating the warmer half of the year.
In Yokohama, Japan, January welcomes a moderate UV Index of 3, suggesting that while sun exposure can be enjoyed, caution is still advisable with a burn time of just 30 minutes. As the months progress into early spring, the UV Index gradually climbs, reaching 4 in February and 5 in March, maintaining that moderate risk. However, the landscape shifts dramatically in April, where the UV levels leap to 8, indicating very high exposure potential and a sharper burn time of 15 minutes. This trend continues into summer, peaking at an extreme UV Index of 11 in August, when even a brief exposure can result in sunburn. As autumn approaches, the UV Index begins to decline, illustrating the seasonal ebb and flow of sun intensity, ultimately leading to December's low UV conditions at 2. For a detailed view of monthly UV levels, visit Yokohama UV Index.
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In Yokohama, Japan, January welcomes the year with a cool embrace and 156 hours of sunshine, setting the stage for a gradual increase as winter fades into spring. As February arrives, daylight blooms to 201 hours, nudging residents towards the vibrant anticipation of spring. March continues this upward trend with 252 hours, painting the city in brighter hues as cherry blossoms prepare to unfold. By April and May, the sunshine peaks, offering 275 and 294 hours, respectively, providing ample opportunities for outdoor festivities amidst the fragrant blossoms. However, as summer rolls in, June's 276 hours and July's 273 hours suggest a slight dip, yet still promise plenty of sunny days. The warmth continues into August, though the hours drop to 257, and as autumn settles in, September and October each grant 256 and 226 hours of sunlight, casting a golden glow over falling leaves. Finally, November and December close the year with 193 and 187 hours, reminding inhabitants of the shorter days ahead while they savor the lingering warmth of the previous months. This cyclical dance of sunshine showcases not just the changing seasons but the unique rhythm of life in Yokohama throughout the year.
In January, Yokohama experiences a 30% chance of sunny weather, marking it as one of the cooler months of the year. This percentage is relatively low compared to the upcoming spring months; for instance, February sees a slight increase to 37%, while March holds steady at 36%. As the seasons transition to warmer weather, the likelihood of sunny days notably rises, peaking in April at 46%. Interestingly, throughout the year, the sunshine chances vary, with summer months tapering off to 25% in August before climbing again in the fall. Overall, January's modest sunshine offers a clear signal of seasonal change, paving the way for brighter and warmer days ahead.
In Yokohama, Japan, January ushers in a modest 9 hours of daylight, marking the start of a gradual transition towards longer days. As February rolls in, daylight expands to 10 hours, setting the stage for the spring to flourish. By March, this increase continues, with daylight reaching 11 hours, and by April, the sun generously gifts 13 hours of light, encouraging outdoor activities and blooming flowers. The longest days arrive in June at 15 hours, epitomizing the exuberance of summer. However, as the seasons shift, daylight begins to wane, descending to 14 hours in July, and then tapering off through August and September until it hits 12 hours in October. The months of November and December herald a return to 9 hours of daylight, reminiscent of January's quiet embrace, completing a natural cycle that highlights the beauty of changing seasons in this vibrant coastal city.
In Yokohama, January brings a brisk average wind speed of 8.1 m/s (18 mph), slightly lower than February's peak of 8.4 m/s (19 mph). This month marks the transition into a less blustery season, as wind speeds take a noticeable dip throughout the spring. By March and April, the winds soften to 6.2 m/s (14 mph) and 6.0 m/s (13 mph), respectively, ushering in the gentler breezes of early spring. The trend continues as the year progresses, with speeds falling further to 5.3 m/s (12 mph) in May and hovering around 5.6 m/s (13 mph) during the summer months. Interestingly, the wind starts to pick up again in November, culminating in a 7.9 m/s (18 mph) breeze by December, signaling a return to the winter's invigorating gusts. Thus, January stands as a pivotal month, bridging the gap between winter's winds and the milder conditions of the approaching spring.
Weather in Yokohama varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Yokohama, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February exhibit quite similar weather conditions, but with some notable differences. In January, temperatures range from a minimum of -7°C (19°F) to a maximum of 8°C (46°F), with an average of 1°C (34°F). The month sees 97 mm (3.8 in) of precipitation over 19 days, and humidity levels hover around 79%. In contrast, February maintains a similar temperature range with a minimum of -7°C (20°F) and a maximum still at 8°C, but the average dips slightly to 0°C (33°F). Precipitation increases to 108 mm (4.3 in) over 21 days, with humidity slightly lower at 78%. For more details, you can visit Yokohama weather in February.
Comparing the weather in January and March reveals a noticeable shift in temperatures and conditions. In January, temperatures range from a minimum of -7°C (19°F) to a maximum of just 8°C (46°F), with an average of 1°C (34°F). The month experiences 97 mm (3.8 in) of precipitation over 19 days, coupled with high humidity levels at 79%. In contrast, March sees a milder climate, with temperatures ranging from a minimum of -4°C (26°F) to a maximum of 14°C (58°F) and an average of 4°C (40°F). Although precipitation decreases slightly to 89 mm (3.5 in) over 14 days, humidity also drops to 77%. This transition indicates the onset of spring and a gradual warming trend. For a detailed overview, you can visit Yokohama weather in March.
In January, the weather is considerably colder, with temperatures ranging from a minimum of -7°C (19°F) to a maximum of 8°C (46°F) and an average of 1°C (34°F). The month experiences significant precipitation, totaling 97 mm (3.8 in) over 19 days, coupled with a high humidity level of 79%. In contrast, April sees a notable warming, with temperatures starting at a minimum of 1°C (34°F) and reaching up to 18°C (64°F), averaging 8°C (46°F). Despite slightly higher precipitation at 99 mm (3.9 in) over fewer days (13), the humidity remains fairly constant at 78%. For a closer look at the pleasant conditions typical of this spring month, check out Yokohama weather in April.
In January, the weather is quite cold with temperatures ranging from a minimum of -7°C (19°F) to a maximum of 8°C (46°F) and an average temperature of around 1°C (34°F). The month experiences substantial precipitation, averaging 97 mm (3.8 in) over 19 days, accompanied by a humidity level of 79%.
In contrast, May brings a noticeable warmth, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 23°C (74°F) and an average temperature of 12°C (55°F). Although May sees slightly higher precipitation at 101 mm (4.0 in), it only occurs over 12 days, and the humidity rises to 86%. For a detailed look at weather patterns in this month, you can refer to Yokohama weather in May.
January and June showcase stark contrasts in weather. In January, temperatures are quite chilly, with a minimum of -7°C (19°F) and average highs reaching only 8°C (46°F). During this month, the region experiences significant precipitation over 19 days, amounting to 97 mm (3.8 in), coupled with a humidity level of 79%. In contrast, June welcomes warmer weather, characterized by minimum temperatures of 11°C (51°F) and pleasant averages around 16°C (61°F), peaking at 24°C (76°F). Although June sees slightly higher precipitation at 123 mm (4.9 in), it spreads over fewer days—just 12—while humidity rises to 91%. For more details on the weather specifics in June, you can check Yokohama weather in June.
January and July present starkly contrasting weather conditions. In January, temperatures range from a chilly -7°C (19°F) to a mild 8°C (46°F), with an average of 1°C (34°F), while July sees much warmer temperatures with a minimum of 14°C (57°F) and a maximum of 28°C (83°F), averaging around 20°C (69°F). January is characterized by significant precipitation, totaling 97 mm (3.8 in) over 19 days, while July experiences slightly more with 128 mm (5.0 in) across 13 days. Additionally, humidity levels are considerably higher in July at 95%, compared to 79% in January. For more details on July weather, visit Yokohama weather in July.
In January, the weather is quite cold, with temperatures ranging from a chilling -7°C (19°F) at night to a maximum of 8°C (46°F) during the day. The average temperature hovers around 1°C (34°F), accompanied by significant precipitation of 97 mm (3.8 in) over 19 days, resulting in a humidity level of 79%. In contrast, August brings much warmer temperatures, with minimums of 17°C (63°F) and highs reaching up to 29°C (85°F). The average temperature is a comfortable 22°C (72°F), though the month experiences higher rainfall at 203 mm (8.0 in) over 15 days, accompanied by elevated humidity at 97%. For more detailed information about Yokohama weather in August, visit Yokohama weather in August.
In January, the weather is notably colder, with temperatures ranging from a minimum of -7°C (19°F) to a maximum of 8°C (46°F), and an average temperature of around 1°C (34°F). The month sees significant precipitation at 97 mm (3.8 in) over 19 days, along with a humidity level of 79%. In contrast, September is much milder, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 28°C (82°F), giving it an average of 20°C (69°F). While September experiences slightly higher precipitation at 113 mm (4.5 in) over 12 days, it has a higher humidity level of 89%. For a more detailed look at September's weather, you can check Yokohama weather in September.
January and October exhibit stark contrasts in weather conditions. In January, temperatures can plunge to a minimum of -7°C (19°F), with an average temperature hovering around 1°C (34°F) and reaching a maximum of 8°C (46°F). The month sees considerable precipitation, totaling 97 mm (3.8 in) over 19 days, accompanied by a humidity level of 79%. In contrast, October enjoys a milder climate, with temperatures ranging from a minimum of 8°C (47°F) to a pleasant maximum of 25°C (77°F) and an average of 16°C (60°F). Rainfall is more plentiful in October, with 168 mm (6.6 in) of precipitation spread over 13 days, and humidity is slightly higher at 81%. For more details about October weather, visit Yokohama weather in October.
In January, the weather is significantly colder than in November, with average temperatures around 1°C (34°F) compared to November's milder 9°C (49°F). January experiences a minimum temperature as low as -7°C (19°F), while November seldom drops below 0°C (32°F). Both months see similar levels of precipitation, with January receiving 97 mm (3.8 in) over 19 days and November having 94 mm (3.7 in) over 17 days. Humidity levels remain fairly consistent, at 79% in January and slightly lower at 78% in November. For more details on the conditions during November, you can visit Yokohama weather in November.
In comparing the weather between January and December, January tends to be colder, with average temperatures ranging from a minimum of -7°C (19°F) to a maximum of 8°C (46°F), while December features milder temperatures with a minimum of -4°C (24°F) and a maximum reaching 14°C (58°F). Additionally, January experiences less precipitation, totaling 97 mm (3.8 in) over 19 days, in contrast to December's 151 mm (6.0 in) spread over 26 days. Interestingly, relative humidity levels are slightly higher in January at 79% compared to December's 77%. For a more detailed look at December's weather patterns, you can check Yokohama weather in December.
As winter deepens, Yokohama in January showcases a distinct shift in weather compared to the milder month before. Temperatures dip significantly, revealing chilly minimums that contrast sharply with the summer warmth, while average highs remain firmly below 10°C. The city experiences nearly 20 days of precipitation, contributing to a damp and humid atmosphere, making January one of the wetter months of the year. This combination of cold and moisture creates a unique climate that feels markedly different from the milder, more temperate conditions of spring and fall. For a deeper understanding of how Yokohama's climate varies throughout the year, explore Yokohama Climate.