Last updated: August 21, 2025
In December, Kusatsu, Japan experiences a striking contrast in temperatures, with maximums reaching up to 18°C (65°F) and chilly minimums plummeting to -8°C (17°F). The city sees an average temperature of around 1°C (35°F), setting the stage for a crisp winter ambiance. With 76 mm (3.0 in) of precipitation spread over 15 days, residents and visitors alike can expect a mix of snow and rain, contributing to the area's high humidity of 86%. This unique weather blend makes Kusatsu a captivating winter destination, perfect for soaking in its famous hot springs amidst the enchanting snowy landscape.
In Kusatsu, Japan, December ushers in the heart of winter, with temperatures showcasing a distinct chill. The average temperature hovers around 1°C (35°F), marking a significant drop from the milder fall months. As the month progresses, nighttime lows can plunge to a brisk -8°C (17°F), while daytime highs reach a comfortable 18°C (65°F), creating a refreshing contrast that beckons outdoor enthusiasts. This blend of frosty nights and relatively warmer days offers perfect conditions for winter activities, making Kusatsu a cozy retreat for those looking to embrace the season’s beauty. As we transition from November’s lingering coolness, December firmly establishes the winter chill, setting the stage for a picturesque snowy landscape that defines this Japanese hot spring town.
In December, Kusatsu experiences a shift in its precipitation patterns, with 76 mm (3.0 in) of rainfall spread over 15 days. As the year draws to a close, this represents a moderate increase compared to November's 50 mm (2.0 in), suggesting a gradual return to the wetter conditions characteristic of earlier months. December's precipitation is consistent with the preceding months, particularly January and February, which both see an equal 74 mm (2.9 in). This trend highlights a typical winter pattern for Kusatsu, where precipitation persists but generally remains lighter than the summer peak in July, which boasts a remarkable 278 mm (10.9 in). Overall, December sets the stage for a cozy winter ambiance, balancing between chill and moisture, making it an intriguing month in the local climatic cycle.
In Kusatsu, Japan, December brings a moderate humidity level of 86%, marking a slight decrease from the heavier humidity experienced in the summer months of July and August (both at 92%). As the year progresses from January's 88% and February's 86%, humidity tends to gradually decline through the spring months, reaching a low of 78% in April. However, this decline levels off as temperatures drop in the late fall, stabilizing around the mid-80s for the final month of the year. This pattern illustrates how Kusatsu’s climate transitions, providing a refreshing yet lingering sense of moisture even as winter approaches.
In December, Kusatsu, Japan, experiences a significant shift in its UV Index, offering a respite from the intense sunlight of the previous months. With a UV Index of 3, categorized as moderate, the burn time is a generous 30 minutes, allowing residents and visitors to enjoy outdoor activities with a lesser risk of sunburn. This marks a notable decrease from the extreme levels recorded in the summer months, where the index peaked at 11. As winter sets in, it's essential to stay mindful of UV exposure, even in cooler weather, making this moderate level a welcome change. For more detailed information, explore the Kusatsu UV Index.
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Nestled in the scenic beauty of Japan, Kusatsu shines particularly bright in the winter months, with December offering a pleasant 219 hours of sunshine. While days grow shorter and the cold sets in, this sunny gem still showcases a remarkable glow compared to the earlier months, hinting at a gradual decline from November's 227 hours. This brief dip in sunlight is followed by a promising upward trend as the year unfolds: from January's 183 hours to a flourishing 287 hours in May. The sunshine in Kusatsu paints a captivating portrait of seasonal transitions, where winter's crisp air is softened by the gentle warmth of sunlight, embracing both locals and visitors alike.
In Kusatsu, Japan, December offers a 41% chance of sunny weather, a figure that sits comfortably between the higher likelihoods of November’s 46% and the declining rates of the subsequent winter months. As the year winds down, this typical winter month sees an interesting fluctuation; while both November and December maintain a relatively favorable chance for sunshine, the subsequent months—particularly the deep winter ones—show a noticeable drop in sunny opportunities. Overall, December balances between clear skies and the cold, making it a captivating time for both locals and visitors who are eager to enjoy the crisp, sunny days amid the winter scenery.
In Kusatsu, Japan, the daylight duration exhibits a rhythmic pattern throughout the year, reflecting the changing seasons. Starting with 9 hours in January, the daylight gradually increases to a peak of 14 hours from May to July, showcasing the long and bright summer days. As the year progresses into autumn, daylight begins to decrease, with 12 hours in September, slowly tapering to 10 hours in November. December sees daylight return to the wintry minimal of 9 hours, echoing the shorter days of the early year. This annual cycle not only underscores the beauty of nature's transitions but also accentuates the contrast between the sunny summers and the duskier winters experienced in Kusatsu.
In Kusatsu, Japan, the December winds pick up slightly, averaging 2.2 m/s (5 mph), a refreshing contrast to the calm of summer months. As the year winds down, this gentle breeze invigorates the landscape, nudging away the lingering warmth of autumn. Observing the trend throughout the year reveals a gradual increase in wind speeds leading into winter, with December showcasing a modest rebound from July's low of 1.3 m/s (3 mph). This end-of-year gustiness not only signals the approach of colder temperatures but also invites travelers to embrace the crisp air and stunning winter scenery that Kusatsu is renowned for.
Weather in Kusatsu varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Kusatsu, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January present a notable contrast in weather patterns. In December, temperatures range from a minimum of -8°C (17°F) to a maximum of 18°C (65°F) with an average of 1°C (35°F), while January sees lower temperatures, with a minimum of -12°C (11°F) and an average of -2°C (29°F), peaking at 9°C (49°F). Precipitation levels in both months are quite similar, with December recording 76 mm (3.0 in) over 15 days and January slightly less at 74 mm (2.9 in) over 16 days. Additionally, January tends to be a bit more humid, with humidity levels at 88% compared to December's 86%. For more details, you can check Kusatsu weather in January.
December and February present a cold, wintry landscape, but there are some notable differences in their weather patterns. In December, temperatures range from a minimum of -8°C (17°F) to an average of 1°C (35°F), reaching a maximum of 18°C (65°F). The month sees about 76 mm (3.0 in) of precipitation over 15 days, combined with a high humidity of 86%. On the other hand, February tends to be slightly colder, with a minimum temperature of -11°C (12°F) and an average of -1°C (31°F), while the maximum reaches 17°C (63°F). Precipitation is slightly lower at 74 mm (2.9 in) over 14 days, maintaining the same humidity level of 86%. For a more detailed look at the weather specific to February, you can explore Kusatsu weather in February.
December and March have some notable differences in weather conditions. In December, temperatures range from a chilly -8°C (17°F) at their lowest to a maximum of 18°C (65°F), with an average of around 1°C (35°F). The month experiences around 76 mm (3.0 in) of precipitation spread across 15 days and boasts a high humidity level of 86%.
In contrast, March sees a slight increase in average temperatures, with lows still reaching -8°C (19°F) and highs climbing to 21°C (70°F), resulting in an average of 4°C (39°F). Precipitation is slightly higher in March at 111 mm (4.4 in) over the course of 14 days, though humidity is lower at 81%. For more detailed insights, you can visit Kusatsu weather in March.
In December, temperatures range from a chilly -8°C (17°F) to a mild 18°C (65°F), with an average of around 1°C (35°F). The month sees 76 mm (3.0 in) of precipitation over about 15 days, accompanied by a high humidity level of 86%. In contrast, April brings warmer temperatures, ranging from a low of -5°C (24°F) to a high of 27°C (81°F), with an average temperature of 9°C (48°F). Although April receives more precipitation at 112 mm (4.4 in) over the same number of rainy days, the humidity drops to 78%. For more details on the April weather in this region, you can visit Kusatsu weather in April.
In Kusatsu, December weather starkly contrasts with that of May. December experiences a chillier climate, with average temperatures hovering around 1°C (35°F) and occasional lows plunging to -8°C (17°F). The humidity is high at 86%, often resulting in notable snowfall, with around 76 mm of precipitation over 15 days. In contrast, May warms up significantly, featuring a much milder average temperature of 15°C (59°F) and a maximum of 30°C (87°F). Though May sees more total precipitation at 139 mm over 16 days, the humidity is slightly lower at 81%. For more insights into the weather during this vibrant spring month, you can visit Kusatsu weather in May.
December and June present starkly contrasting weather conditions. In December, temperatures can drop as low as -8°C (17°F), with an average of 1°C (35°F) and highs reaching only 18°C (65°F). The month is characterized by significant humidity at 86%, along with 76 mm (3.0 in) of precipitation over about 15 days. In contrast, June experiences much milder temperatures, ranging from a minimum of 6°C (43°F) to an average of 18°C (65°F) and highs soaring to 30°C (87°F). It also sees increased rainfall, with 168 mm (6.6 in) of precipitation over 18 days, coupled with a slightly higher humidity level of 88%. This comparison highlights how winter in December differs dramatically from the warm, rainy days of June. For a closer look at June weather specifics, visit Kusatsu weather in June.
December and July showcase a stark contrast in weather patterns. In December, temperatures can plummet to a minimum of -8°C (17°F), with an average of just 1°C (35°F) and a maximum reaching 18°C (65°F). This month also experiences significant humidity at 86% and 76 mm (3.0 in) of precipitation over 15 days, creating a cold and damp environment. Conversely, July brings warmth, with temperatures ranging from a minimum of 14°C (58°F) to an average of 22°C (72°F) and a peak of 33°C (91°F). The month is even wetter, with 278 mm (10.9 in) of precipitation spread across 25 days and humidity rising to 92%. This shift from winter chill to summer heat highlights the dramatic seasonal changes experienced in this region. For more details about July weather, check out Kusatsu weather in July.
December and August present starkly contrasting weather conditions. In December, temperatures range from a frigid -8°C (17°F) at night to a mild average of 1°C (35°F) during the day, peaking at 18°C (65°F). This month also experiences significant humidity at 86% and about 76 mm (3.0 in) of precipitation over 15 days. In contrast, August brings much warmer temperatures, with nighttime lows of 11°C (52°F) and an average high of 23°C (74°F), reaching up to a sweltering 34°C (93°F). Furthermore, August sees increased rainfall, with 177 mm (7.0 in) falling over 22 days and humidity rising to 92%. For a more detailed look at weather patterns, you can visit Kusatsu weather in August.
When comparing the weather in December and September, we see a stark contrast in temperature and precipitation. December experiences colder temperatures, with an average of just 1°C (35°F) and lows dipping as low as -8°C (17°F), while September boasts a much warmer average of 19°C (66°F) and highs reaching up to 29°C (85°F). Additionally, September tends to be wetter, with 168 mm (6.6 in) of precipitation over 19 days compared to December’s 76 mm (3.0 in) over 15 days. Humidity levels are relatively high in both months, at 86% in December and slightly higher at 89% in September. For a more detailed look at September weather, you can visit Kusatsu weather in September.
In comparing the weather between December and October, December typically experiences colder temperatures with a minimum of -8°C (17°F) and an average of 1°C (35°F), while October features a milder range, with a minimum of 1°C (34°F) and an average of 13°C (55°F). October also boasts significantly higher temperatures, with maximums reaching 26°C (80°F), in stark contrast to December's maximum of 18°C (65°F). Precipitation levels are greater in October, totaling 217 mm (8.5 in) over 17 days, compared to December's 76 mm (3.0 in) over 15 days. The humidity remains fairly consistent, at 86% in December and 87% in October. For more details on October’s weather, check out Kusatsu weather in October.
In comparing the weather of December and November, December tends to be colder, with temperatures ranging from a minimum of -8°C (17°F) to a maximum of 18°C (65°F), averaging around 1°C (35°F). In contrast, November is milder, with temperatures having a minimum of -4°C (24°F) and a maximum of 20°C (68°F), averaging 7°C (44°F). Additionally, December experiences more precipitation, totaling 76 mm (3.0 in) over 15 days, compared to November's 50 mm (2.0 in) over 10 days. The humidity remains quite similar, with December at 86% and November slightly lower at 85%. For more detailed information on November's weather, you can check Kusatsu weather in November.
In December, Kusatsu experiences a distinct shift in weather compared to other months, with chilly temperatures that often dip below freezing at night. The average temperature hovers around freezing, making it a stark contrast to the milder fall months. As the humidity climbs to 86%, the atmosphere feels notably colder, particularly on the 15 days when precipitation is recorded, contributing to the overall winter ambiance. With a total of 76 mm of rainfall, December marks a moist and crisp finale to the year. For more insights into the seasonal transformations and climate patterns, be sure to check out Kusatsu Climate.