Last updated: August 21, 2025
In January, Ashikaga, Japan, experiences a refreshing winter climate characterized by maximum temperatures reaching up to 17°C (63°F), while the average temperature hovers around 4°C (39°F). Nighttime can bring a sharp chill, with minimum temperatures plummeting to -9°C (16°F). Residents and visitors alike may anticipate approximately 40 mm (1.6 in) of precipitation over about 5 days, contributing to the region's lush winter landscapes. The humidity remains notably high at 88%, creating a crisp and invigorating atmosphere that captures the essence of a Japanese winter.
In January, Ashikaga, Japan, experiences a sharp cold snap, with temperatures dipping as low as -9°C (16°F), creating a winter wonderland atmosphere. The average temperature hovers around 4°C (39°F), while daytime highs can reach a mild 17°C (63°F), hinting at the gradual warming trend that follows in February and March. As winter wanes, the mercury begins to rise, showcasing a steady increase in average temperatures from January's chill through the spring months, ultimately leading to delightful warmth by May when highs can soar to 33°C (92°F). This transition from the brisk winter cold to the vibrant warmth of spring paints a picture of a climate that experiences striking contrasts, making Ashikaga’s seasonal shifts both dramatic and enchanting.
In January, Ashikaga experiences a modest precipitation level of 40 mm (1.6 in), typically spread over just 5 days. This is the beginning of the year, where the weather is often crisp and relatively dry compared to the heavier rainfall that follows in subsequent months. As winter transitions into spring, February sees a slight increase in precipitation to 42 mm (1.7 in), accompanied by a marginal rise in rainy days. By March, precipitation surges significantly to 129 mm (5.1 in), marking the onset of the wet season with 10 rainy days. This trend continues, culminating in July, where the rainfall peaks at 274 mm (10.8 in)—the wettest month of the year—in stark contrast to the dry winter months. As the seasons change, the shift from the relatively dry January to the mid-year deluge highlights a clear seasonal pattern in Ashikaga’s climate.
In January, Ashikaga, Japan experiences a high humidity level of 88%, setting the tone for a winter that remains quite moist. As the year progresses into February and March, humidity begins to decline, reaching 86% and 81% respectively, signaling a slight easing before spring. However, the trend shifts again with the onset of summer, as humidity levels soar to a peak of 92% in both July and August, enveloping the region in a muggy embrace. Following the summer months, humidity gradually recedes, hovering around 85% in November and settling at 86% by December. Overall, the year in Ashikaga reveals a rhythmic fluctuation in humidity, characterized by a distinct winter chill and a steamy summer that invites both comfort and challenge.
In January, Ashikaga experiences a moderate UV Index of 3, indicating that while sun exposure is manageable, it's wise to be cautious, as unprotected skin may burn after about 30 minutes. As the months progress towards spring, the UV Index begins to rise, with February maintaining a similar level at 5 but hinting at increasing intensity. By March, the index jumps to 7, marking a transition to high exposure, where burn time decreases to just 25 minutes. This upward trend peaks in April and May, reaching a very high 9 and a maximum of 10 respectively, which dramatically shortens burn times to just 15 minutes. The summer months of June and July present the most severe UV risks, with an extreme index of 11 and only 10 minutes of safe exposure, underscoring the importance of sun protection. As we head into early autumn, the index gradually decreases, settling back into moderate levels by November and December at 5 and 3 respectively, with a consistent burn time of 30 minutes. This seasonal pattern emphasizes the need for heightened sun safety from late spring through summer. For more detailed information, check out Ashikaga UV Index.
UV Risk Categories
January in Ashikaga, Japan, typically greets visitors with 190 hours of sunshine, laying a tranquil foundation for the year. As winter gives way to spring, the sunlight steadily rises, peaking in April with an impressive 277 hours. Following closely, May showcases similar warmth, maintaining 278 hours of brightness. However, as summer approaches in July, sunlight dips to 227 hours before rebounding in August with 269 hours. The rhythm continues into the autumn months, where hours gradually decline, concluding the year with 231 hours in December. This gentle ebb and flow of sunshine not only highlights Ashikaga’s changing seasons but also paints a picturesque backdrop for all who visit.
In Ashikaga, Japan, January offers a 55% chance of sunny weather, marking it as a promising start to the year. Unlike the cloudier depths of winter, this month shines brighter compared to the wetter months that follow, as sunlight becomes more likely in February with a 73% chance. However, the generally unpredictable nature of spring is revealed as March dips to 42%, making it one of the cloudier months in the season. The data indicates a fluctuating trend, where the likelihood of sunshine sees a gradual variation throughout the year. The late autumn months, notably November, with a 63% chance, and December at 70%, also offer a reprieve from gloomy skies, suggesting that Ashikaga enjoys a notable glimmer of sunshine as it transitions from winter to spring.
In Ashikaga, Japan, January ushers in a modest 9 hours of daylight, setting the stage for a gradual increase as the year unfolds. As winter transitions to spring, daylight expands steadily, reaching 11 hours by March and peaking at 14 hours from May to July. This rich burst of light during the summer months enhances outdoor activities and captures the vibrant life of the region. However, as August fades into autumn, daylight gradually recedes back to 9 hours by December, completing a rhythmic cycle of bright beginnings and tranquil endings. This pattern not only marks the shifting seasons but also reflects the harmonious balance of nature, inviting residents and visitors alike to relish the changing light throughout the year.
In January, Ashikaga, Japan experiences a gentle average wind speed of 2.1 m/s (5 mph), setting a tranquil tone for the winter month. As the seasons transition, February sees a noticeable increase to 2.8 m/s (6 mph), introducing a brisker breeze. However, this uptick is short-lived, as wind speeds dip again in March and April, stabilizing around 2.5 m/s (6 mph) and 2.4 m/s (5 mph), respectively. The spring months of May and June mirror January's calm, with wind speeds dropping steadily to 1.8 m/s (4 mph), suggesting a serene atmosphere as spring blossoms. This trend continues into the summer, where July and August see the lowest averages of 1.5 m/s (3 mph) and 1.9 m/s (4 mph), creating a stillness that invites leisurely outdoor activities. As autumn rolls in with September and October, winds pick up slightly, hovering around 1.6 m/s (4 mph) before a small resurgence in December at 2.3 m/s (5 mph). Thus, the January winds in Ashikaga encapsulate a broader seasonal pattern that shifts from briskness to tranquility and back again, reflecting the delicate interplay of climate throughout the year.
Weather in Ashikaga varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Ashikaga, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February present a gradual warming trend in weather conditions. January typically sees lower temperatures, with a minimum of -9°C (16°F) and an average of 4°C (39°F), while February offers slightly milder conditions, featuring a minimum of -5°C (23°F) and an average of 5°C (41°F). Notably, February can reach a higher maximum temperature of 21°C (70°F) compared to January's 17°C (63°F). Precipitation levels are quite similar, with January receiving 40 mm over 5 days and February slightly higher at 42 mm over 6 days; however, February's humidity is marginally lower at 86%, compared to January's 88%. For more detailed insights, see the link: Ashikaga weather in February.
In January, temperatures in Ashikaga typically range from a chilly -9°C (16°F) at night to a mild 17°C (63°F) during the day, with an average of 4°C (39°F). The month experiences about 40 mm (1.6 in) of precipitation spread across 5 days, accompanied by high humidity levels at 88%. In contrast, March brings a noticeable warming trend, with temperatures ranging from -4°C (26°F) to 24°C (75°F) and an average of 9°C (49°F). However, it sees significantly more rainfall, totaling 129 mm (5.1 in) over 10 days, and a slightly lower humidity of 81%. For more details on March weather, check out Ashikaga weather in March.
In January, the weather is noticeably cold, with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 17°C (63°F) and an average of 4°C (39°F). The month is also characterized by high humidity at 88% and comparatively light precipitation, totaling 40 mm (1.6 in) over about 5 days. In contrast, April brings a significant warming trend with temperatures ranging from -1°C (31°F) at night to a pleasant maximum of 29°C (84°F) during the day, averaging around 14°C (57°F). However, April is wetter, with precipitation reaching 127 mm (5.0 in) spread across 12 days and a lower humidity of 78%. For more detailed information, you can refer to Ashikaga weather in April.
January weather is notably colder, with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 17°C (63°F), and an average temperature of 4°C (39°F). The month experiences about 40 mm (1.6 in) of precipitation over five days, accompanied by high humidity at 88%. In stark contrast, May brings much warmer temperatures, with a minimum of 5°C (41°F) and an average of 19°C (66°F), reaching up to 33°C (92°F) at its peak. The precipitation increases significantly to 137 mm (5.4 in) spread over 13 days, though humidity remains relatively lower at 81%. For a detailed look at weather conditions during this vibrant month, check out Ashikaga weather in May.
In January, the weather is significantly colder, with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 17°C (63°F) and an average of 4°C (39°F). The month sees about 40 mm (1.6 in) of precipitation over approximately 5 days, and the humidity remains high at 88%. In contrast, June offers a much warmer climate, with temperatures soaring from a minimum of 12°C (54°F) to a peak of 33°C (92°F), averaging at 22°C (72°F). Precipitation increases substantially to 175 mm (6.9 in) across 17 days, while humidity remains consistent at 88%. For more details on the weather in June, you can visit Ashikaga weather in June.
In January, the weather is notably cold, with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 17°C (63°F), and an average temperature around 4°C (39°F). The month experiences relatively low precipitation, totaling 40 mm (1.6 in) across about 5 days, and the humidity is quite high at 88%.
In contrast, July presents a stark difference, showcasing warm conditions with temperatures that fluctuate from a minimum of 17°C (63°F) to a scorching maximum of 37°C (98°F), averaging around 25°C (78°F). July is much wetter as well, with precipitation reaching 274 mm (10.8 in) over 21 days, and the humidity remains high at 92%. For more details, check out Ashikaga weather in July.
In January, the weather is notably cold with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 17°C (63°F) and an average of 4°C (39°F). The month sees around 40 mm (1.6 in) of precipitation over approximately 5 days, accompanied by high humidity levels of 88%.
In contrast, August features a significantly warmer climate, with temperatures varying from a minimum of 16°C (61°F) to a sweltering maximum of 37°C (98°F), giving an average of 27°C (82°F). This summer month experiences much more rainfall, totaling 163 mm (6.4 in) across about 17 days, and maintains a humidity level of 92%. For more details on typical August conditions, you can check Ashikaga weather in August.
In January, the weather is considerably colder, with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 17°C (63°F), and an average temperature of 4°C (39°F). Precipitation is relatively low at 40 mm (1.6 in) over about 5 days, accompanied by high humidity at 88%. In contrast, September experiences much warmer temperatures, with a minimum of 13°C (55°F), an average of 23°C (74°F), and a maximum of 35°C (95°F). However, it is notably wetter in September, with precipitation reaching 213 mm (8.4 in) over 21 days, while humidity remains similar at 89%. For more specific insights into the weather conditions in September, you can check Ashikaga weather in September.
The weather in January is characterized by cold temperatures, with a minimum of -9°C (16°F) and an average of 4°C (39°F). In contrast, October brings significantly milder conditions, boasting a minimum of 5°C (41°F) and an average of 18°C (64°F). While January experiences relatively low precipitation of 40 mm (1.6 in) over just 5 days, October sees a notable increase in rainfall, totaling 267 mm (10.5 in) across 16 days. Both months have high humidity, but January's 88% is slightly higher than October's 87%. For more details on October weather, check out Ashikaga weather in October.
January and November present stark contrasts in weather. January typically sees colder temperatures, with a minimum of -9°C (16°F) and an average of 4°C (39°F), whereas November enjoys milder conditions, featuring a minimum of -2°C (29°F) and an average of 12°C (53°F). Precipitation is also notable, with January receiving 40 mm (1.6 in) over 5 days and November experiencing 57 mm (2.3 in) over 7 days. Additionally, humidity levels are slightly higher in January at 88%, compared to November's 85%. For more detailed insights into November's climate, check out Ashikaga weather in November.
In comparing January and December weather, January tends to be colder with average temperatures ranging from -9°C (16°F) at its lowest to a maximum of 17°C (63°F), while December features slightly milder temperatures, with a minimum of -3°C (27°F) and a maximum of 19°C (66°F). Additionally, January experiences lower humidity at 88% compared to December's 86%, and both months see similar levels of precipitation, although January has slightly less with 40 mm (1.6 in) over 5 days compared to December's 45 mm (1.8 in) over 6 days. For more detailed information, you can visit Ashikaga weather in December.
January in Ashikaga brings a crisp chill that contrasts sharply with the milder months of late spring and summer. With temperatures often dipping to frigid lows, this month emphasizes the region's seasonal diversity, showcasing its stark beauty enveloped in frost. The increased humidity combined with limited rainfall creates a unique atmosphere that can feel both refreshing and brisk. While other months may boast warmer temperatures and more consistent precipitation, January is distinctly defined by its serene cold, inviting visitors to experience Ashikaga's winter charm. For a deeper dive into the seasonal shifts and overall climate patterns, explore Ashikaga Climate.