Last updated: August 21, 2025
In January, Aizu-Wakamatsu experiences chilly temperatures with a maximum of 8°C (47°F) and an average low of -1°C (31°F), dipping down to a frosty -11°C (12°F) on the coldest nights. This winter month is also characterized by significant precipitation, totaling 96 mm (3.8 in) across 18 days, contributing to the region's high humidity levels of 88%. Visitors can expect a mix of cold air and moisture, creating a crisp, wintry atmosphere perfect for exploring the historic sites of this charming Japanese city.
In Aizu-Wakamatsu, Japan, January brings a winter chill with temperatures ranging from a biting -11°C (12°F) at night to a maximum of 8°C (47°F) during the day, averaging around -1°C (31°F). This stark cold sets the stage for a gradual warming trend as the season progresses. By February, temperatures show a slight rise, and March continues this trend, with daytime highs reaching 19°C (67°F), marking the transition towards spring. The resilient heart of winter, however, still holds sway in January, creating a picturesque landscape that contrasts sharply with the mild and blossoming temperatures of April that can peak at 26°C (79°F). As the season marches on, Aizu-Wakamatsu sheds its winter coat, leading to increasingly comfortable days, showcasing nature's magnificent transition from the icy grips of January to the vibrant warmth of spring.
In Aizu-Wakamatsu, January brings an average precipitation of 96 mm (3.8 in), with rain falling on about 18 days throughout the month. This sets the stage for a wet winter season, as the amount of precipitation begins to peak in the following months. Compared to February's slightly lower total of 90 mm (3.5 in) and 19 rainy days, January's conditions hint at the lingering effects of winter, leading into the wetter spring months. As the year progresses into March, precipitation increases significantly to 120 mm (4.7 in), emphasizing a trend toward a more humid climate. The rainfall pattern in Aizu-Wakamatsu showcases a gradual rise, particularly in the summer, culminating in July’s high of 239 mm (9.4 in), suggesting a transition from the snowy depths of winter to the vibrant wetness of summer.
In Aizu-Wakamatsu, Japan, January ushers in the new year with a notable humidity level of 88%, setting the stage for a winter that feels both crisp and damp. As the months progress into February and March, humidity experiences a slight decline, dropping to 86% and 81%, respectively, hinting at a shift as early spring approaches. However, this trend of decreasing moisture is short-lived; by April, humidity stabilizes at 78%, only to resume its ascent as warmer months approach. The summer months of July and August bring peak humidity levels of 92%, creating a muggy atmosphere that persists into the early fall. Interestingly, as autumn unfolds, humidity begins to gently taper off, settling at 85% in November and 86% in December. Throughout the year, it's clear that Aizu-Wakamatsu's humidity exhibits a dynamic ebb and flow, heavily influenced by seasonal transitions.
In January, Aizu-Wakamatsu experiences a moderate UV Index of 4, with a burn time of just 30 minutes, indicating that while the sun can be enjoyable, caution is advised if you're outdoors. This trend of moderate exposure continues into February, rising slightly to a UV Index of 5. However, as spring approaches, the UV levels begin to escalate rapidly: by March, the index jumps to 8, shifting to very high risk with a much shorter burn time of only 15 minutes. The intensity peaks in the following months, reaching a critical stage of 11 in June through August, where every minute counts under the extreme sun. As the seasons transition into autumn, UV levels steadily decrease, dropping to 9 in September and further diminishing to 3 by December. This clear fluctuation emphasizes the importance of monitoring UV exposure throughout the year. For more details on UV trends, visit Aizu-Wakamatsu UV Index.
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In Aizu-Wakamatsu, Japan, the sunlight begins its gradual ascent in January, with 145 hours illuminating the winter landscape. As the year unfolds, February sees a noticeable increase to 195 hours, hinting at the promise of spring. By March, the days grow longer with 242 hours of sunshine, paving the way for the vibrant blooms of April, which welcomes 263 hours of radiant light. May shines even brighter, boasting 281 hours, as the region basks in the warmth of early summer. The trend continues into June with 266 hours, though it slightly dips in July to 246 hours. August brings a resurgence at 271 hours, before the sun gradually retreats in September to 228 hours. As autumn sets in, October and November witness a gentle decline to 193 hours and 205 hours, respectively, leading into the cooler winter months of December with 173 hours. This yearly cycle of sunlight not only influences the region's beauty but also enhances the cultural richness of Aizu-Wakamatsu, making each season uniquely captivating.
In Aizu-Wakamatsu, Japan, the month of January sees a modest 16% chance of sunny weather, marking it as one of the cloudier times of the year. This trend continues into February, where the likelihood of sunshine climbs to 29%, hinting at a gradual shift towards brighter days. As spring approaches, the chances further increase, with March holding a 27% probability of sunshine and April leaping to an impressive 41%. Interestingly, while May dips slightly to 25%, the overall progression indicates a clear seasonal trend: the likelihood of sunny weather steadily improves as the year unfolds, creating an inviting anticipation for the sunnier months ahead.
In Aizu-Wakamatsu, Japan, January heralds the return of daylight with approximately 9 hours of sunshine, a stark contrast to the brighter months that follow. As winter fades, February offers a glimpse of improvement with 10 hours of daylight, setting the stage for a steady increase that continues through spring. By March, the days stretch to 11 hours, signaling the approaching warmth and beauty of nature's rebirth. The transition to April and May is particularly striking, as daylight swells to 13 and 14 hours, respectively, creating a lush environment filled with blooming flowers and lively outdoor activities. This peak of daylight extends through the early summer months of June and July, maintaining a generous 14 hours. However, as summer wanes, the gradual decline begins, with daylight reducing to 13 hours in August and steadily diminishing through fall, reaching 9 hours again by December. This rhythmic ebb and flow of daylight not only enhances the seasons but also enriches the cultural tapestry of Aizu-Wakamatsu throughout the year.
In Aizu-Wakamatsu, January greets residents and visitors with a gentle breeze, averaging 2.5 m/s (6 mph). While this wind speed is relatively calm, it sets the tone for a month still gripped by winter's chill. As the seasons transition, February sees a slight uptick to 3.3 m/s (7 mph), hinting at the approaching spring. However, the wind speed tends to fluctuate throughout the spring months, gradually easing back to 2.5 m/s by May, before dipping dramatically in the summer. From June to August, the winds whisper at their lowest, oscillating between 1.4 m/s (3 mph) and 1.9 m/s (4 mph). This subdued breeze returns to a more lively state in the fall, culminating in a noticeable rise as November approaches. Ultimately, January offers a seamless entry into the year, characterized by mild winds that hint at the changing seasons ahead.
Weather in Aizu-Wakamatsu varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Aizu-Wakamatsu, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February showcase notable differences in weather despite their proximity on the calendar. January experiences colder temperatures, with an average of -1°C (31°F) and a maximum of 8°C (47°F), while February sees a slight warming trend with an average of 0°C (32°F) and highs reaching 15°C (59°F). Precipitation levels are relatively similar, with January receiving 96 mm (3.8 in) over 18 days and February slightly lower at 90 mm (3.5 in) across 19 days. Both months maintain high humidity, with January at 88% and February at 86%. For further insights, be sure to check out Aizu-Wakamatsu weather in February.
January and March exhibit notable differences in weather patterns. In January, temperatures average around -1°C (31°F), with a minimum of -11°C (12°F) and a maximum of 8°C (47°F), while witnessing high humidity levels at 88%. Precipitation is also significant, totaling 96 mm (3.8 in) over 18 days. In contrast, March shows a marked warming trend, with average temperatures rising to 4°C (39°F), a minimum of -9°C (16°F), and a maximum of 19°C (67°F). Despite having slightly higher precipitation at 120 mm (4.7 in), it occurs over fewer days—15 in total—and the humidity decreases to 81%. For a detailed look at the weather in March, you can visit Aizu-Wakamatsu weather in March.
January and April present starkly contrasting weather patterns. In January, temperatures range from a frigid minimum of -11°C (12°F) to a maximum of 8°C (47°F), with an average of -1°C (31°F). The month is characterized by high humidity (88%) and considerable precipitation, totaling 96 mm (3.8 in) over 18 days. In contrast, April brings a notable warm-up, with temperatures soaring from a minimum of -3°C (26°F) to a pleasant maximum of 26°C (79°F), averaging around 9°C (48°F). While April experiences slightly more precipitation (105 mm or 4.1 in), it has fewer wet days (13 days) and lower humidity (78%). For more details, check out Aizu-Wakamatsu weather in April.
In January, the weather is notably cold, with temperatures ranging from a chilling -11°C (12°F) to a maximum of 8°C (47°F) and an average around -1°C (31°F). The month sees substantial precipitation of 96 mm (3.8 in) over 18 days, accompanied by high humidity levels at 88%. In contrast, May brings a significant shift as temperatures rise dramatically, with a minimum of 2°C (36°F) and a maximum of 31°C (89°F), averaging 15°C (59°F). While the precipitation in May is slightly higher at 99 mm (3.9 in) over just 12 days, the humidity is lower at 81%. For more details on the weather in May, you can visit Aizu-Wakamatsu weather in May.
In January, the weather is quite chilly, with temperatures ranging from a minimum of -11°C (12°F) to a maximum of 8°C (47°F) and an average of -1°C (31°F). The month experiences significant precipitation, totaling 96 mm (3.8 in) over 18 days, coupled with a high humidity level of 88%. In contrast, June brings a much warmer climate, with temperatures varying from a minimum of 7°C (45°F) to a maximum of 32°C (90°F) and an average of 18°C (66°F). Although June has slightly higher precipitation at 101 mm (4.0 in) over just 12 days, the humidity remains constant at 88%. For more detailed information on the weather in June, check out Aizu-Wakamatsu weather in June.
The weather in January and July presents a stark contrast in Aizu-Wakamatsu. January boasts a chilly climate with temperatures ranging from a minimum of -11°C (12°F) to a maximum of 8°C (47°F), accompanied by high humidity levels of 88% and average precipitation of 96 mm (3.8 in) over 18 days. In sharp contrast, July features milder temperatures, with a minimum of 14°C (58°F) and soaring up to a maximum of 34°C (93°F), while experiencing even higher precipitation at 239 mm (9.4 in) across 19 days, and maintaining a humidity level of 92%. For more detailed information on the weather during this warm summer month, visit Aizu-Wakamatsu weather in July.
January and August present stark contrasts in weather conditions. In January, temperatures can plunge to a minimum of -11°C (12°F), with an average temperature around -1°C (31°F) and a maximum of 8°C (47°F). The month experiences significant precipitation at 96 mm (3.8 in) over 18 days, coupled with high humidity levels of 88%. In contrast, August welcomes warmer weather, with temperatures ranging from a minimum of 14°C (57°F) to a scorching maximum of 34°C (94°F), averaging 24°C (76°F). Precipitation is slightly higher at 136 mm (5.3 in) over 16 days, with humidity also elevated at 92%. For a more detailed look at the summer weather, you can check Aizu-Wakamatsu weather in August.
In January, the weather is characterized by biting cold, with temperatures ranging from a minimum of -11°C (12°F) to a maximum of 8°C (47°F). The month is quite damp, receiving about 96 mm (3.8 inches) of precipitation over 18 days, coupled with high humidity at 88%. In contrast, September experiences a much milder climate, with temperatures soaring from a low of 9°C (48°F) to highs of 31°C (89°F) and an average temperature of 20°C (67°F). Although it sees slightly more precipitation at 120 mm (4.7 inches) over 14 days, the humidity remains high at 89%. For a closer look at the September weather in Aizu-Wakamatsu, you can refer to Aizu-Wakamatsu weather in September.
January weather is characterized by much colder temperatures, with minimums reaching -11°C (12°F) and highs only reaching 8°C (47°F), while October enjoys milder conditions, featuring minimums of 2°C (37°F) and peak temperatures soaring up to 27°C (80°F). Precipitation in January is less frequent, occurring over 18 days and totaling 96 mm (3.8 in), whereas October sees a greater amount of rainfall at 168 mm (6.6 in) but over fewer days, just 12 days. Despite January's chill, it has a higher humidity level at 88%, closely followed by October's 87%. For more detailed information on October weather patterns, visit Aizu-Wakamatsu weather in October.
When comparing the weather in January and November, we see significant differences in temperature and precipitation. January experiences colder conditions, with minimum temperatures dropping to -11°C (12°F) and an average of -1°C (31°F), while November enjoys milder temperatures, ranging from a minimum of -3°C (26°F) to a pleasant average of 8°C (46°F). The maximum temperature in November can even reach up to 20°C (68°F), making it substantially warmer than January's peak of 8°C (47°F). Additionally, January sees more precipitation, with 96 mm (3.8 in) over 18 days, compared to November's 60 mm (2.3 in) over just 11 days. Humidity levels are also slightly higher in January at 88% versus November's 85%. For a more detailed view of November weather, check out Aizu-Wakamatsu weather in November.
In comparing the weather between January and December, January tends to be slightly colder, with average temperatures hovering around -1°C (31°F) compared to December's average of 2°C (36°F). January also experiences lower maximum temperatures, peaking at 8°C (47°F), while December can reach up to 17°C (62°F). Despite both months having significant precipitation, January records about 96 mm (3.8 in) over 18 days, while December has slightly higher precipitation at 110 mm (4.3 in) over 20 days. The humidity levels are similar, with January at 88% and December at 86%. For a more detailed look at the weather specifics, check out Aizu-Wakamatsu weather in December.
January in Aizu-Wakamatsu presents a stark contrast to other months, marked by chilly temperatures that often dip below freezing and are accompanied by frequent precipitation. With an average high of just 8°C, this month is one of the coldest, making it an ideal time to embrace indoor activities or enjoy the beauty of winter landscapes. The high humidity and notable number of rainy days add to the season's distinct character, creating a unique atmosphere that sets January apart from more temperate periods of the year. For more detailed insights into the climate of Aizu-Wakamatsu, check out Aizu-Wakamatsu Climate.