December Weather in Daisen, Japan

Last updated: August 21, 2025

In December, Daisen, Japan experiences a distinctive winter climate, characterized by maximum temperatures peaking around 14°C (58°F), an average of 1°C (35°F), and dipping to a minimum of -9°C (17°F). This month is also marked by considerable precipitation, totaling 157 mm (6.2 in) spread across 25 days, contributing to the landscape's wintry charm. With humidity levels averaging 80%, the air carries a crispness that encapsulates the essence of the season, making Daisen a captivating destination for winter enthusiasts.

December Temperature in Daisen

In Daisen, Japan, December ushers in the heart of winter, presenting a sharp decline in temperatures as the year draws to a close. With minimums around -9°C (17°F) and averages hovering at 1°C (35°F), residents experience a notable chill compared to the milder autumn months. While daytime highs can reach a modest 14°C (58°F), the shift from November's milder 8°C (46°F) average anticipates the deeper winter that January will bring. This plunging trend in temperatures is coupled with a serene beauty, as the landscape transforms into a winter wonderland, inviting locals and travelers alike to embrace the cozy warmth of traditional Japanese hospitality amidst the frosty air.

December Weather in Daisen: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Daisen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Daisen, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec303140485966747668574635
Data source: Temperature data for Daisen generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Daisen

In Daisen, Japan, December marks a significant peak in precipitation, registering 157 mm (6.2 in) over the course of the month. This total comes alongside an impressive 25 rainy days, making it one of the wettest months of the year. The trend of increasing rainfall is evident as December's precipitation amount surpasses many months prior, reflecting a gradual uptick in wet weather as winter approaches. This rise in both the volume of rainfall and the number of rainy days complements the preceding months, particularly October and November, which also experienced heightened precipitation, but with fewer rainy days. The shift to more frequent rainfall as the year draws to a close suggests a transition into winter's chillier, wetter climate, offering a contrast to the drier spring and summer months earlier in the year.

December Precipitation Trends in Daisen

The chart displays monthly precipitation patterns in Daisen, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Daisen, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec108127125141135147191210133159128157
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Daisen

In Daisen, Japan, December experiences a humidity level of 80%, marking a slight increase from the preceding months' averages. The trend throughout the year reveals a fascinating oscillation in moisture levels; starting from 80% in January, humidity gently decreases to a low of 75% in April before beginning its ascent as the warmer months approach. Notably, the summer peaks at a sultry 92% in July and August, creating an enveloping atmosphere. As autumn arrives, humidity levels begin to taper off, settling at 79% in November. December, mirroring January's levels, indicates a consistent return to the winter moisture typical of the season, promising a comfortable yet crisp climate as the year winds down.

December Average Humidity in Daisen

This chart illustrates the average monthly humidity levels in Daisen, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Daisen is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%77%75%80%87%92%92%86%82%79%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Daisen

As December arrives in Daisen, Japan, the UV Index retreats to a moderate level of 3, marking a notable shift from the extreme highs of summer. With a burn time of 30 minutes, this month provides a comfortable reminder to enjoy the outdoors while still being mindful of sun exposure. Throughout the year, Daisen experiences a significant fluctuation in UV levels, peaking at 11 during the intense summer months, which calls for heightened sun protection. Conversely, the winter months of January and February also reflect moderate UV exposure, making December an ideal time for outdoor activities without the intense risks of sunburn common in the height of summer. For more detailed information, check out the Daisen UV Index.

Maximum UV Index Levels in Daisen for December

The chart shows the monthly maximum UV Index (UVI) for Daisen in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Daisen typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891010119643
Data source: Daisen December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Daisen

In December, Daisen, Japan, enjoys 180 hours of sunshine, marking a gentle decline as the year winds down. This month's sun exposure reflects a cozy transition from autumn to winter, following the peak of 295 hours in May and a gradual dip through the summer months. Despite the decrease, December retains a fair share of daylight, outshining the early winter months of January and November, which feature significantly lower hours of sunshine at 150 and 196 hours respectively. As daylight dims, the beauty of Daisen takes on a serene quality, with the low sun casting enchanting shadows over the landscape, inviting residents and visitors alike to embrace the tranquil spirit of winter.

Monthly Sunshine Duration in Daisen: December Highlighted

The December sunshine duration represents the total number of hours Daisen experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec150h195h246h268h295h282h291h293h255h220h196h180h
Data source: Daisen December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Daisen During December

In Daisen, Japan, the likelihood of encountering sunny weather in December is relatively modest, sitting at 22%. This reflects a slight decline from the more favorable conditions seen in the earlier months, such as April, which boasts a sunny chance of 40%. This trend of fluctuating sunshine highlights the transition into winter, where December's weather begins to shift towards the colder, cloudier days typical of the season. Although the chances are lower than in some other months, the crisp winter air can still offer glimpses of clear skies, making those sunny days in December a refreshing surprise amidst the chill.

Percentage of Sunny Days in December in Daisen

The chart illustrates the percentage of sunny days in Daisen throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Daisen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec18%30%26%40%26%29%32%21%32%31%31%22%
Data source: Daisen December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Daisen in December

In Daisen, Japan, December marks the end of a gradual decline in daylight that begins after the summer months. With only 9 hours of daylight, the days shorten significantly compared to the brighter spring and summer seasons, where daylight reaches up to 14 hours in June and July. As autumn transitions to winter, this pattern reveals a rhythmic ebb and flow of light, peaking in May and slowly tapering off as the year draws to a close. The return to 10 hours in November also hints at the lingering warmth of fall, but as December arrives, it signals the onset of winter's embrace. This cyclical variation not only shapes the natural beauty of the landscape but also influences the daily lives of Daisen’s residents, creating a unique seasonal atmosphere.

Average Daylight Hours in Daisen for December

The chart illustrates the variation in daylight duration in Daisen throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 43m10h 41m11h 57m13h 14m14h 20m14h 53m14h 36m13h 39m12h 25m11h 8m10h9h 25m
Data source: Daisen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Daisen

As December settles over Daisen, Japan, the winds begin to stir with an average speed of 2.9 m/s (7 mph), echoing the breezy conditions felt earlier in the year. Following a gentle lull in the summer months, where July recorded the calmest winds at just 1.8 m/s (4 mph), the autumn transition brought a gradual resurgence in wind speed. This uptick leads into winter, where December's conditions mirror those of January and March, both featuring a reliable 2.9 m/s. This trend reflects a cycling pattern of wind that peaks in the colder months, providing a refreshing contrast to the serene summers, while whispering promises of winter landscapes yet to come.

Average December Wind Speed in Daisen

The chart displays monthly wind speed patterns in Daisen, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.93.62.93.02.82.01.82.22.32.12.42.9 m/s
Data source: Daisen December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Daisen Compares to Other Months

Weather in Daisen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Daisen, focusing on differences in temperature, rainfall, humidity, and UV levels.

December and January present quite a contrast in weather, despite both months experiencing high humidity levels of around 80%. In December, temperatures range from a chilly minimum of -9°C (17°F) to a more moderate maximum of 14°C (58°F), with an average temperature of 1°C (35°F). This month is also marked by significant precipitation, totaling 157 mm (6.2 in) over 25 days.

In contrast, January brings even colder conditions, with temperatures dipping to a minimum of -16°C (4°F) and averaging -1°C (30°F), while the maximum only reaches 7°C (44°F). Interestingly, January sees a decrease in total precipitation to 108 mm (4.2 in) spread over 19 days, making it somewhat less wet than December. For a deeper look at weather specifics during January, check out this link: Daisen weather in January.

December and February present distinctly different winter weather patterns. In December, temperatures range from a minimum of -9°C (17°F) to a maximum of 14°C (58°F), with an average of around 1°C (35°F). Precipitation is significant, totaling 157 mm (6.2 inches) over 25 days, contributing to a relatively high humidity of 80%. In contrast, February experiences colder temperatures, with a minimum of -16°C (3°F) and a maximum of 10°C (51°F), averaging -1°C (31°F). This month is slightly drier, with about 127 mm (5.0 inches) of precipitation spread over 21 days and humidity at 79%. For more detailed insights on February weather, you can visit Daisen weather in February.

In December, the weather typically features a minimum temperature of -9°C (17°F) and an average of 1°C (35°F), with a maximum reaching 14°C (58°F). This month also experiences significant precipitation, totaling 157 mm (6.2 in) over 25 days, coupled with a high humidity level of 80%. In contrast, March sees slightly colder nights, with a minimum of -10°C (14°F), but an average temperature of 4°C (40°F) and a maximum of 19°C (67°F) indicate a gradual warming trend. Precipitation decreases to 125 mm (4.9 in) across 17 days, and humidity drops a bit to 77%. For more details, you can check out Daisen weather in March.

December and April exhibit contrasting weather patterns, significantly influenced by seasonal changes. In December, temperatures range from a chilly -9°C (17°F) at their lowest to a milder 14°C (58°F) at their peak, with an average temperature of around 1°C (35°F). The month is characterized by substantial precipitation, measuring 157 mm (6.2 in) over 25 days, alongside high humidity levels of 80%.

In contrast, April brings more temperate conditions, with minimum temperatures of -5°C (24°F) and maximums reaching up to 24°C (75°F), resulting in a pleasant average of 9°C (48°F). Despite slightly lower precipitation levels of 141 mm (5.6 in) over 17 days, the humidity decreases to 75%, making the weather generally more comfortable. For more details, you can check Daisen weather in April.

December and May present strikingly different weather characteristics. In December, temperatures range from a frigid -9°C (17°F) at their lowest to a mild 14°C (58°F) at their peak, with an average of around 1°C (35°F). The month is marked by significant precipitation, totaling 157 mm (6.2 inches) over 25 days, while humidity remains high at 80%. In contrast, May experiences much warmer temperatures, with a minimum of 3°C (37°F) and a maximum of 30°C (86°F), averaging 15°C (59°F). Precipitation decreases slightly to 135 mm (5.3 inches) over 15 days, but humidity stays consistent at 80%. For a more detailed look at conditions in May, you can visit Daisen weather in May.

December and June present stark contrasts in weather. December typically experiences colder temperatures, with lows dropping to -9°C (17°F) and a maximum reaching only 14°C (58°F), while June boasts milder averages of 6°C (43°F) at night and highs of 30°C (86°F) during the day. Precipitation levels are relatively similar, with December seeing 157 mm (6.2 in) of rain over 25 days compared to June's 147 mm (5.8 in) across just 13 days. Moreover, humidity is slightly higher in June at 87%, compared to December’s 80%. For a closer look at the weather conditions during this vibrant summer month, visit Daisen weather in June.

When comparing the weather in December and July, the differences are quite striking. December features much colder temperatures, with a minimum of -9°C (17°F) and an average of 1°C (35°F), while July boasts a much warmer climate, with a minimum of 15°C (58°F) and an average of 23°C (74°F). Precipitation is more frequent in December, occurring on 25 days with a total of 157 mm (6.2 in), compared to July’s 17 days of rain and 191 mm (7.5 in). Furthermore, although both months have high humidity levels, July's humidity at 92% surpasses December's 80%. For more details on the warm conditions, see Daisen weather in July.

December and August present contrasting weather patterns. In December, temperatures typically range from a chilly -9°C (17°F) at night to a mild 14°C (58°F) during the day, with an average of 1°C (35°F). This month experiences significant precipitation, totaling 157 mm (6.2 in) over 25 days, and the humidity sits at a high 80%. In stark contrast, August boasts much warmer temperatures, with nighttime lows around 13°C (56°F) and daytime highs reaching up to 35°C (96°F), averaging 24°C (76°F). It also sees higher precipitation levels of 210 mm (8.2 in) over 16 days, coupled with a humidity of 92%. For a more detailed look at August weather, visit Daisen weather in August.

December and September present contrasting weather conditions. In December, temperatures drop significantly, with a minimum of -9°C (17°F) and an average of just 1°C (35°F), while the month can reach a maximum of 14°C (58°F). This cold weather is coupled with considerable precipitation, with around 157 mm (6.2 in) of rain over 25 days and a humidity level of 80%. In contrast, September enjoys much milder temperatures, ranging from a minimum of 6°C (43°F) to an average of 20°C (68°F) and peaks at a warm 33°C (92°F). The month has slightly lower precipitation at 133 mm (5.2 in) spread over just 14 days, with a higher humidity level of 86%. For a closer look at September weather, you can visit Daisen weather in September.

When comparing the weather in December and October, it's evident that October is generally milder and drier. In October, temperatures range from a minimum of 3°C (37°F) to a pleasant average of 14°C (57°F), peaking at a comfortable 27°C (81°F). In contrast, December sees significantly colder conditions, with temperatures dropping to a minimum of -9°C (17°F) and averaging just 1°C (35°F). Additionally, while both months receive a similar amount of precipitation—159 mm (6.3 in) in October and 157 mm (6.2 in) in December—October has fewer rainy days, with precipitation occurring on 13 days compared to December's 25 days. The humidity level is also slightly higher in December at 80% versus 82% in October, which can make the colder air feel even chillier. For more details on October's weather, you can check Daisen weather in October.

December weather contrasts notably with that of November. While November experiences milder temperatures with an average of 8°C (46°F), December sees a significant drop to an average of 1°C (35°F). Notably, the minimum temperature in December can plunge to -9°C (17°F), compared to November's -7°C (20°F). Precipitation increases in December, reaching 157 mm (6.2 in) over 25 days, while November has less rainfall at 127 mm (5.0 in) across 17 days. Humidity remains relatively constant, with December at 80% and November at 79%. For more details about November weather, you can visit Daisen weather in November.

Compare Daisen's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Daisen

As December arrives in Daisen, the weather takes a notable turn, transitioning from the milder conditions of autumn to the chill of winter. With an average temperature hovering around 1°C and occasional dips to -9°C, residents and visitors alike experience the stark contrast compared to preceding months. The increased precipitation, spanning nearly every day of the month, also contributes to a sense of winter's embrace, coupled with humidity levels around 80%. This combination creates a unique atmosphere that sets December apart from other months, inviting those who love the beauty of winter to explore the serene landscapes. For a deeper understanding of what to expect, check out the detailed information on Daisen Climate.