Last updated: August 21, 2025
December in Toyama, Japan offers a unique blend of chilly temperatures and significant precipitation. With a maximum of 21°C (71°F) during the warmer days and an average hovering around 5°C (42°F), winter sets in firmly, bringing minimums that can drop to -4°C (24°F). The month witnesses a substantial precipitation amount of 231 mm (9.1 in) spread over 23 days, making it crucial for residents and visitors alike to prepare for wet weather. Adding to the ambiance, the humidity stands at a notable 79%, contributing to the crisp and refreshing air that characterizes this picturesque time of year.
In Toyama, Japan, December ushers in a distinct chill, with temperatures ranging from a brisk -4°C (24°F) at night to a more moderate 21°C (71°F) during the day. As winter sets in, the average temperature hovers around 5°C (42°F), signaling a shift from the milder autumn months. This pattern reflects a gradual drop in temperatures as the city transitions from November's 11°C (52°F) average, reinforcing the region's characteristic coldness during winter. The notable highs in December also hint at the potential for sporadic warmth amidst the season's chill, showcasing Toyama’s varying climate as it approaches the peak of winter’s embrace. As the year draws to a close, residents and visitors alike can expect a blend of cool air and radiant winter sunshine in December's crisp days.
In December, Toyama, Japan experiences significant precipitation, with a notable 231 mm (9.1 in) of rainfall spread over 23 days. This marks a slight increase from November's 135 mm, indicating a shift toward wetter conditions as winter sets in. The trend of increased precipitation is mirrored in the number of rainy days, which ties with the heavy downpours typically seen during the summer months. As the year wraps up, December’s precipitation levels reflect the region's characteristic heavy rainfall, positioning it as one of the wetter months of the year and contributing to Toyama's lush, green landscapes that carry into the following year.
In Toyama, Japan, December brings a shift in humidity levels, settling at 79%—a slight dip from the preceding months. Throughout the year, humidity peaks during the summer, reaching a high of 93% in July, and remains elevated in August at 92%. As autumn approaches, the moisture levels gradually decrease, with November experiencing a lower 77%. This trend continues into December, suggesting a transitional phase as winter draws near. Interestingly, while December's humidity is lower than the summer highs, it still reflects the area's characteristic dampness, maintaining a range of 76% to 85% from early spring through late fall. Overall, the humidity in Toyama illustrates a clear seasonal rhythm, providing a unique backdrop to the region's climate.
In Toyama, Japan, the UV Index experiences notable fluctuations throughout the year, with December showing a decrease to a moderate level of 3. This is a welcome shift from the intense conditions earlier in the summer months, where levels peaked at 11, indicating extreme exposure levels from June to August. Following the transitional months of October and November, which saw UV Index values of 7 and 5 respectively, December allows for safer sun exposure with a burn time of 30 minutes. This trend highlights the importance of staying vigilant about UV radiation, even in cooler months. For more details, check the Toyama UV Index.
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In Toyama, Japan, the winter months bring a gentle decline in sunshine hours, with December offering around 187 hours of brilliant daylight. This marks a notable dip from the vibrant spring and summer months, where sunlight peaks in May at 302 hours and remains abundant through the warm summer. As the year winds down, the trend reveals a gradual decrease in sunlight, moving from 278 hours in April to 218 hours in November before easing into the dimmer days of December. Despite this reduction, the soft glow of winter sunlight still provides a comforting backdrop to Toyama’s scenic beauty, promising moments of warmth during the cold season.
December in Toyama, Japan, offers a 30% chance of sunny weather, transitioning into the winter season after a brief but pleasant autumn. As the year draws to a close, the likelihood of sunshine dips slightly from November's 48%, reflecting the increasing prevalence of cloud cover and precipitation typical of winter months. This fluctuating trend emphasizes that while December may not be the sunniest month, it still presents occasional clear skies, inviting residents and travelers alike to enjoy the serene beauty that envelops the region during this time.
In Toyama, Japan, December marks the return of shorter days, with daylight lasting only 9 hours. This reversion to limited sunlight echoes the trend seen in January, suggesting a cyclical rhythm as the year draws to a close. As the seasons change, daylight gradually increases from February's 10 hours to a peak of 14 hours in the middle of the year, before tapering off again in the fall and winter months. The graceful ebb and flow of daylight highlights the distinct shifts in Toyama's seasonal landscape, inviting residents and visitors alike to embrace the cozy charm of winter evenings.
In Toyama, Japan, December tends to bring a noticeable shift in wind patterns as the year draws to a close. With an average wind speed of 3.0 m/s (7 mph), December sits comfortably above the calmer summer months, which see speeds below 2.0 m/s. This uptick in wind strength follows a subtle upward trend from November, where speeds reached 2.8 m/s, hinting at the transitional nature of the seasons. As winter approaches, the winds pick up slightly, creating a refreshing ambiance that complements the city's picturesque winter landscapes. Interestingly, while January and February maintain similar wind speeds as December, it's clear that the last month of the year heralds a gentle but discernible increase in the wind's presence, setting the stage for the chilly, crisp months ahead.
Weather in Toyama varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Toyama, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather typically experiences a wider range of temperatures, with minimums dropping to -4°C (24°F) and maximums reaching up to 21°C (71°F). The average temperature sits at 5°C (42°F), accompanied by substantial rainfall of 231 mm (9.1 in) over 23 days. In contrast, January sees slightly colder conditions, with a minimum of -5°C (23°F) and a maximum of 15°C (59°F), resulting in an average temperature of 2°C (37°F). Although January has a reduced precipitation total of 197 mm (7.8 in) over 21 days, the humidity remains relatively constant at 80%. For more detailed weather information, you can check Toyama weather in January.
In December, the weather can be quite varied, with temperatures ranging from a chilly -4°C (24°F) to a milder 21°C (71°F), while the average sits at around 5°C (42°F). The month is quite rainy, with precipitation totaling 231 mm (9.1 in) over 23 days and humidity levels hovering around 79%. In contrast, February tends to be slightly colder, with a minimum temperature of -6°C (22°F) and an average of 3°C (37°F), peaking at 18°C (64°F). February also sees less rainfall, with 179 mm (7.0 in) over 20 days and humidity at a comparable 78%. For more details, you can check out Toyama weather in February.
December and March present contrasting weather patterns despite their proximity in the winter-spring transition. December typically experiences colder temperatures, with minimums dropping to -4°C (24°F) and an average of 5°C (42°F). In contrast, March shows a slight warming trend, averaging 7°C (45°F) and only dropping to a minimum of -3°C (27°F). Moreover, December is wetter, receiving 231 mm (9.1 in) of precipitation over 23 days, compared to March's 167 mm (6.6 in) over just 17 days. Humidity levels are also slightly higher in December at 79%, while March maintains a humidity of 76%. For a more detailed look at the climate conditions in March, visit Toyama weather in March.
In December, the weather is generally colder, with temperatures ranging from a minimum of -4°C (24°F) to a maximum of 21°C (71°F), and an average temperature of 5°C (42°F). It also experiences significant precipitation, with around 231 mm (9.1 in) falling over 23 days, contributing to high humidity levels of 79%. In contrast, April sees milder conditions, with temperatures from -3°C (27°F) to 27°C (81°F) and an average of 12°C (53°F). There is less rain, totaling 179 mm (7.0 in) over 15 days, and the humidity is slightly lower at 77%. This transition from December to April highlights the warming trend and reduction in precipitation as spring approaches. For more details, check out Toyama weather in April.
December and May present contrasting weather patterns. In December, temperatures can drop to a minimum of -4°C (24°F) and average around 5°C (42°F), while the month experiences considerable precipitation, totaling 231 mm (9.1 in) over 23 days with a humidity level of 79%. On the other hand, May welcomes milder conditions with minimums of 5°C (42°F) and an average temperature of 17°C (64°F), reaching a maximum of 30°C (85°F). Additionally, it sees less rainfall, with 158 mm (6.2 in) across 15 days and slightly higher humidity at 85%. For more detailed information, you can check out Toyama weather in May.
December and June present markedly different weather conditions. In December, temperatures range from a chilly minimum of -4°C (24°F) to an average high of 21°C (71°F), with a notable 231 mm (9.1 in) of precipitation spread over 23 days. The humidity is relatively high at 79%, contributing to the cold and damp atmosphere. In contrast, June enjoys milder weather with minimum temperatures of 10°C (51°F) and an average high of 30°C (87°F). This month has less precipitation, totaling 190 mm (7.5 in) over just 15 days, while the humidity rises slightly to 89%. For more details, you can visit Toyama weather in June.
December and July present strikingly different weather patterns. In December, temperatures are cooler, with a minimum of -4°C (24°F) and an average of 5°C (42°F), while July offers a much warmer climate, with temperatures ranging from a minimum of 19°C (66°F) to an average of 25°C (78°F). Precipitation levels are also notable, with December receiving 231 mm (9.1 in) over 23 days compared to July's higher total of 357 mm (14.0 in) across the same number of days. Additionally, humidity peaks in July at 93%, compared to 79% in December, making July feel considerably more muggy. For those interested in the specifics of July weather in Toyama, you can find more details here: Toyama weather in July.
December and August present stark contrasts in weather. December typically sees much colder temperatures, with a minimum of -4°C (24°F) and an average of 5°C (42°F), while August boasts much warmer conditions, featuring a minimum of 16°C (61°F) and an average of 27°C (80°F). Precipitation is frequent in both months, though December has rain on around 23 days and totals 231 mm (9.1 in), while August experiences slightly higher precipitation levels at 264 mm (10.4 in) over 19 days. Additionally, humidity is notably higher in August at 92%, compared to December's 79%. For more specific details on weather patterns, you can check Toyama weather in August.
December and September present quite contrasting weather conditions. In December, temperatures range from a chilly minimum of -4°C (24°F) to a mild maximum of 21°C (71°F), with an average of 5°C (42°F). The month is quite wet, seeing 231 mm (9.1 in) of precipitation spread over 23 days, and humidity levels hover around 79%. In contrast, September features much warmer temperatures, with minimums of 12°C (54°F) and maximums reaching up to 34°C (94°F), averaging a comfortable 22°C (73°F). Although September has slightly less precipitation at 223 mm (8.8 in) over 17 days, it has a higher humidity level at 84%. For more details, you can check Toyama weather in September.
In December, temperatures take a significant dip compared to October, with a minimum of -4°C (24°F) and an average of 5°C (42°F), contrasting sharply with October's milder minimum of 8°C (46°F) and average of 17°C (62°F). While both months experience a decent amount of precipitation, December sees 231 mm (9.1 in) over 23 days, slightly more than October's 216 mm (8.5 in) spread over 17 days. Additionally, December has a humidity level of 79%, similar to October's 81%, but feels much colder due to the lower temperatures. For more information on October weather, you can check Toyama weather in October.
December's weather is generally colder and wetter compared to November. While November boasts a milder average temperature of 11°C (52°F), December's average dips to 5°C (42°F), with minimum temperatures reaching as low as -4°C (24°F). Precipitation also increases significantly in December, with 231 mm (9.1 in) over 23 days, compared to November's 135 mm (5.3 in) over just 14 days. Despite only a slight difference in humidity, with December at 79% and November at 77%, the overall climate shift from November to December is marked by a more pronounced chill and increased precipitation. For more details on November weather, you can visit Toyama weather in November.
As December settles in Toyama, the weather takes a noticeable turn, transitioning from the milder autumn days to a chillier winter climate. While temperatures can peak at a comfortable 21°C, the average drops to a brisk 5°C, and chilling lows can reach -4°C. This month is particularly wet, with rain falling on 23 days and a significant accumulation of precipitation. The humidity remains high at 79%, contributing to a damp atmosphere that contrasts sharply with the clearer, drier months preceding it. If you're curious about the overall climate and what to expect throughout the year, check out Toyama Climate for a comprehensive overview.