Last updated: August 21, 2025
In January, Yamagata, Japan, experiences a diverse range of weather conditions marked by a maximum temperature reaching 16°C (60°F) and an average of 4°C (39°F). The month brings minimum temperatures as low as -8°C (18°F), creating a chill that underscores the beauty of winter. With 71 mm (2.8 in) of precipitation spread across 11 days, residents and visitors alike should expect frequent snowfall and rain. The humidity levels soar to 82%, adding to the wintry atmosphere. This combination of temperatures and moisture fosters a serene, snow-covered landscape that characterizes Yamagata during this enchanting month.
In Yamagata, Japan, January sees a chilly embrace with temperatures ranging from a brisk -8°C (18°F) to a comfortable 16°C (60°F), centering around an average of 4°C (39°F). This month typically marks the peak of winter, where the colder nights contrast sharply with the occasionally mild daytime warmth. As the days move into February, temperatures begin to rise slightly, with averages remaining stable yet hinting at the gradual approach of spring. Notably, the max temperature can reach 20°C (68°F) by the end of February. This slow transition showcases Yamagata's unique climate, as it balances the starkness of winter with the promise of warming days ahead, paving the way for a vibrant spring that follows in March.
In January, Yamagata, Japan experiences a relatively mild precipitation level, accumulating 71 mm (2.8 in) over 11 days. This marks the beginning of the year with a gradual increase in rainfall, setting the stage for the wetter months ahead. As February approaches, precipitation slightly rises to 79 mm, hinting at a transition into the spring season. The patterns become more pronounced by March and continue through to July, where rainfall peaks dramatically at 493 mm (19.4 in), with 22 days of precipitation, highlighting the region's transition into its rainiest period. Following this surge, the amounts begin to gradually decline in late summer and autumn, ultimately leading back to the more moderate levels seen in January. This cyclical trend underscores Yamagata's unique climate, marked by distinct wet and dry seasons that shape its landscape and lifestyle throughout the year.
In January, Yamagata, Japan, experiences a notable humidity level of 82%, setting the stage for a winter characterized by dampness. As the months progress, humidity gradually declines in February to 79%, followed by a steadier drop to 74% in March, suggesting a slight easing in atmospheric moisture. However, the trend shifts in April, where levels rebound to 76% and elevate again in May to 83%, heralding the arrival of the wetter season. The most striking spike occurs in the summer months, with July reaching an impressive 93%, making it the most humid month of the year. While August remains close behind at 91%, humidity gradually tapers off into the cooler fall months, settling at 87% in September and remaining relatively stable through October and November. By December, Yamagata's humidity returns to 83%, indicating a seasonal cycle where the winter months begin with substantial moisture, culminating in a highly humid summer, before once again transitioning into more comfortable conditions as the year concludes.
In January, Yamagata experiences a moderate UV Index of 4, indicating a burn time of about 30 minutes. As winter winds down, the UV exposure begins to rise steadily, with February seeing an increase to a high UV Index of 6 and a reduced burn time of 25 minutes. The trend continues as March ushers in a very high index of 8, and by April, it escalates to 10, maintaining that level into the sunny month of May, which peaks at an extreme UV Index of 11. This extreme level persists through the summer months of June, July, and August, all requiring vigilant sun protection strategies with a burn time of just 10 minutes. As autumn approaches, September's index drops to 10 before decreasing further to 7 in October, and eventually sinking to a moderate UV of 5 in November and 3 in December. This seasonal pattern emphasizes the importance of monitoring UV levels year-round. For more details, visit Yamagata UV Index.
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In Yamagata, Japan, January brings a modest 181 hours of sunshine, setting the stage for a gradual increase in brightness as the year progresses. As we move into February, the sun begins to grace the region with 228 hours, hinting at a welcoming change. This upward trend continues through March and into April, where daylight hours rise significantly to 265 and then 280 respectively, reaching a peak of 295 hours in May. The sunny days further flourish during the summer months, hitting an impressive 300 hours in August, before starting to taper off. By September and October, the hours gradually decline to 247 and 239 respectively, as winter approaches again. This seasonal ebb and flow showcases Yamagata's beautiful transformation from the crispness of January to the vibrant warmth of late spring, leading into the mellow glow of early autumn.
In Yamagata, Japan, the likelihood of sunny weather in January stands at 41%, offering a relatively modest chance for sunshine as winter sets in. This figure is slightly lower than February's 43% and mirrors the sunny potential of March, which also rests at 42%. As the seasons transition into spring, the likelihood of sunny days begins to rise, peaking in April with 47%. Post-spring, however, the chances take a downward turn in the summer months of June and July, dropping to 24% and 32%, respectively. Interestingly, the late autumn months of October and November mirror the brighter vibes of early spring, showcasing a dramatic increase to 58% and 59%. Thus, while January may present a chilly start with limited sunshine, it sets the stage for a seasonal pattern that embraces sunnier days ahead.
In Yamagata, Japan, January welcomes 10 hours of daylight, setting the tone for the month where the chill of winter still lingers. As the year progresses into February, daylight remains consistent at 10 hours, but by March, the promise of spring begins to emerge with an increase to 11 hours. This trend continues through April, where daylight expands dramatically to 13 hours, peaking at 14 hours in May and June. The summer months of July and August maintain this bright offering, providing ample sunlight for outdoor activities. However, as autumn approaches in September, daylight gradually diminishes to 12 hours before tapering off to 11 hours in October, and finally, to 10 hours in November. The year concludes in December with a mere 9 hours of daylight, inviting reflections on the rhythmic dance of light and dark throughout the seasons.
In Yamagata, Japan, the January winds blow with an average speed of 2.5 m/s (6 mph), setting a brisk tone for the winter month. As February approaches, these winds pick up slightly to 2.8 m/s, before peaking in March at 2.9 m/s. The patterns reveal a flirtation with higher gusts during the early spring, which then taper off as the warmer months arrive. Interestingly, from April to July, wind speeds gradually decline, reaching a low of 1.5 m/s (3 mph) in July, suggesting a calmness that accompanies the summer heat. However, as autumn descends, the winds begin to regain some momentum, hovering around 2.2 to 2.5 m/s from October to December, encroaching on the bustling winter winds once more. Overall, Yamagata's wind dynamics reflect a gentle ebb and flow, mirroring the shifting seasons and offering a unique charm to this Japanese locale.
Weather in Yamagata varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Yamagata, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February both experience chilly temperatures, but February shows a slight warming trend. In January, temperatures range from a minimum of -8°C (18°F) to a maximum of 16°C (60°F) with an average of 4°C (39°F), while February sees temperatures from -7°C (20°F) to a warmer maximum of 20°C (68°F) and an average of 4°C (40°F). Additionally, February has slightly more precipitation at 79 mm (3.1 in) over 9 days compared to January's 71 mm (2.8 in) across 11 days. Humidity levels are also a bit lower in February at 79%, compared to January's 82%. For more detailed insights, check out Yamagata weather in February.
In January, the weather in Yamagata is quite cold, with temperatures ranging from a minimum of -8°C (18°F) to a maximum of 16°C (60°F), averaging around 4°C (39°F). This month also sees relatively high humidity at 82% and experiences about 71 mm (2.8 in) of precipitation over 11 days. In contrast, March brings a significant warming trend, with temperatures varying from -1°C (31°F) to a pleasant maximum of 23°C (74°F) and an average of 9°C (48°F). However, March also experiences increased precipitation, totaling 179 mm (7.1 in) over 13 days, while humidity slightly decreases to 74%. For more detailed insights into March weather specifically, you can check out Yamagata weather in March.
In January, the weather in Yamagata is characterized by chilly temperatures, with a minimum of -8°C (18°F) and an average of 4°C (39°F), while the maximum can reach 16°C (60°F). With 71 mm (2.8 in) of precipitation over 11 days and high humidity at 82%, the month often feels damp and cold. In contrast, April brings a significant warming trend, with temperatures ranging from a minimum of 0°C (32°F) to a comfortable maximum of 27°C (82°F) and an average of 13°C (56°F). However, April sees increased rainfall, with 223 mm (8.8 in) over 12 days, accompanied by slightly lower humidity at 76%. For more detailed insights, check out Yamagata weather in April.
January and May showcase stark contrasts in weather. January experiences chilling temperatures, with averages around 4°C (39°F) and nighttime lows plummeting to -8°C (18°F), while May enjoys a much warmer climate, boasting average temperatures of 18°C (65°F) and highs reaching up to 30°C (87°F). Precipitation also varies significantly; January sees 71 mm (2.8 in) over 11 days, whereas May is much wetter with 229 mm (9.0 in) of rain spread across 12 days. Despite this increase in precipitation, humidity levels remain similar, hovering around 82% in January and increasing slightly to 83% in May. For a comprehensive overview of May's weather in Yamagata, visit Yamagata weather in May.
January and June present contrasting weather conditions. In January, temperatures range from a chilly minimum of -8°C (18°F) to a mild maximum of 16°C (60°F), with an average of 4°C (39°F). This month experiences moderate precipitation of 71 mm (2.8 in) over roughly 11 days, along with high humidity levels of 82%. In stark contrast, June boasts warmer temperatures, with a minimum of 12°C (53°F), an average of 22°C (71°F), and a peak reaching 31°C (89°F). June sees significantly higher precipitation at 245 mm (9.7 in) across 13 days and a slightly elevated humidity of 87%. For more details on June weather, check out Yamagata weather in June.
In January, Yamagata experiences cold temperatures, with minimums plummeting to -8°C (18°F) and an average of around 4°C (39°F), while maximum temperatures reach up to 16°C (60°F). The month sees precipitation of about 71 mm (2.8 in) spread over 11 days, accompanied by a relatively high humidity level of 82%. Conversely, in July, the weather transforms dramatically, with minimum temperatures rising to 18°C (65°F), an average of 26°C (78°F), and maximums soaring to a hot 37°C (100°F). The summer month is significantly wetter, with precipitation totaling 493 mm (19.4 in) across 22 rainy days and humidity levels peaking at 93%. For more detailed information, you can check Yamagata weather in July.
In January, the weather in Yamagata is characterized by cold temperatures, with a minimum of -8°C (18°F) and an average of 4°C (39°F), while the maximum can reach 16°C (60°F). The month experiences a moderate level of precipitation at 71 mm (2.8 in) over about 11 days, coupled with a high humidity level of 82%. In contrast, August presents a stark difference, with warm temperatures ranging from a minimum of 18°C (64°F) to an average of 27°C (82°F) and peaking at a scorching 38°C (100°F). Rainfall increases significantly, totaling 322 mm (12.7 in) across 18 days, and humidity rises to 91%. For more details on the August weather, visit Yamagata weather in August.
In January, the weather in Yamagata is quite chilly, with temperatures ranging from a minimum of -8°C (18°F) to a maximum of 16°C (60°F), resulting in an average of 4°C (39°F). The month experiences approximately 71 mm (2.8 in) of precipitation over about 11 days, coupled with a humidity level of 82%. In contrast, September brings much warmer weather, characterized by temperatures that fluctuate between a minimum of 12°C (54°F) and a maximum of 35°C (95°F), leading to an average of 23°C (74°F). However, this month sees significantly increased rainfall, totaling around 298 mm (11.7 in) over 16 days, with humidity slightly higher at 87%. For more detailed information, you can check this link: Yamagata weather in September.
January and October showcase striking contrasts in weather. January typically experiences much colder temperatures, with daily averages around 4°C (39°F) and a minimum plummeting to -8°C (18°F), while October enjoys a milder average of 18°C (64°F), peaking at a warm 31°C (88°F). Precipitation is also noteworthy; January records 71 mm (2.8 in) over 11 days, while October sees a significant increase to 234 mm (9.2 in) across 14 days, suggesting a wetter month. Despite the slightly higher humidity in October at 85%, January's humidity hovers closely at 82%, leading to a damp chill compared to the autumn warmth. For more details on October weather, check Yamagata weather in October.
In January, temperatures range from a chilly minimum of -8°C (18°F) to a maximum of 16°C (60°F), with an average of 4°C (39°F). The month experiences around 71 mm (2.8 in) of precipitation over 11 days, coupled with a high humidity level of 82%. In contrast, November sees milder weather, with temperatures ranging from a minimum of 1°C (33°F) up to a comfortable maximum of 22°C (72°F) and an average temperature of 12°C (53°F). Although November has slightly higher total precipitation at 74 mm (2.9 in), it benefits from fewer rainy days, averaging just 7. The humidity remains relatively steady at 83%. For more detailed information, check out Yamagata weather in November.
In comparing the weather patterns of January and December, January experiences slightly cooler temperatures, with minimums reaching -8°C (18°F) compared to December's minimum of -5°C (23°F). The average temperature in January hovers around 4°C (39°F), while December has a marginally higher average of 6°C (43°F). Both months see similar maximum temperatures, with January peaking at 16°C (60°F) and December at 18°C (65°F). Precipitation is higher in December, totaling 94 mm (3.7 in) over 12 days, while January sees 71 mm (2.8 in) across 11 days. Humidity levels are fairly consistent, standing at 82% in January and 83% in December. For more details on December weather, visit Yamagata weather in December.
As January rolls into Yamagata, it brings notable contrasts to the overall climate of the year. This month is characterized by chilly days and cool nights, making it the coldest period compared to the milder temperatures of spring and autumn. With an average temperature hovering around 4°C (39°F), January often feels brisk, especially alongside the high humidity levels that reach up to 82%. Occasional precipitation adds to the wintery ambiance, with about 11 days of rain or snow. While January may be cold and damp, it sets the stage for stunning winter scenery that draws visitors eager to embrace Yamagata's unique charm. For more on the seasonal weather patterns, check out Yamagata Climate.