December Weather in Fujisawa, Japan

Last updated: August 21, 2025

In Fujisawa, Japan, December welcomes a blend of crisp and mild temperatures, with a maximum of 21°C (69°F) and an average of 11°C (52°F), dipping as low as 3°C (37°F) during the coldest nights. The month brings about 82 mm (3.2 in) of precipitation across 11 days, creating a humid atmosphere sitting at 78%, which can feel quite chilly. This transitional weather not only sets the stage for stunning seasonal changes but also invites visitors to explore the scenic landscapes adorned with winter hues. Embrace the charm of December in Fujisawa, where every day is a new experience amidst the cool coastal breezes.

December Temperature in Fujisawa

In Fujisawa, Japan, December ushers in a noticeable drop in temperatures, marking the transition into winter. The average temperature hovers around 11°C (52°F), with a minimum dipping to 3°C (37°F) and a comfortable maximum reaching 21°C (69°F). This month's temperatures reflect a gentle shift from the autumn months, where November’s average was higher at 15°C (60°F). With the cold crispness in the air, December invites residents and visitors alike to embrace cozy indoor activities or enjoy the enchanting seasonal scenery, as Fujisawa transitions into a winter wonderland while still offering mild days.

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

The chart illustrates December temperature patterns in Fujisawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fujisawa, 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).
JanFebMarAprMayJunJulAugSepOctNovDec464752576570768075676051
Data source: Temperature data for Fujisawa 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 Fujisawa

In Fujisawa, Japan, December marks the transition into winter with a notable decrease in precipitation compared to the wetter months earlier in the year. The city receives an average of 82 mm (3.2 in) of rainfall, spread over approximately 11 days, offering a brief respite from the heavy downpours that typically peak in October and July. While December's rainfall is less than that of the preceding months, it is still significant enough to maintain the lush landscapes that characterize the region. This trend continues from November, which saw 111 mm (4.4 in), indicating a gradual tapering off as Fujisawa heads toward the drier winter season. As winter progresses, residents can expect a mix of milder days and occasional rain, providing a unique charm to the coastal city during this time of year.

December Precipitation Trends in Fujisawa

The chart displays monthly precipitation patterns in Fujisawa, 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 Fujisawa, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec646217214114819722612920830311182
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Fujisawa

In Fujisawa, Japan, December marks a transition into the winter season, reflected in the city's humidity levels which sit at a comfortable 78%. This figure shows a decline from the summer peaks seen in July and August, where humidity soared to 93% and 90%, respectively. The fluctuations throughout the year reveal a trend: humidity tends to rise during the warmer months, typically reaching its highest in June and July. As autumn approaches, the levels gradually decrease, culminating in the crisp December air. Interestingly, December's humidity is slightly lower than the previous month, November's 80%, suggesting a shift towards drier conditions as the year wraps up. As residents of Fujisawa embrace the winter chill, the balanced humidity provides a refreshing yet comfortable atmosphere.

December Average Humidity in Fujisawa

This chart illustrates the average monthly humidity levels in Fujisawa, 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 Fujisawa is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Fujisawa

As December rolls in, Fujisawa, Japan experiences a notable retreat in UV intensity, with the UV Index dropping to a moderate level of 4. This shift marks a continuation of the trend observed since the peak summer months, where the UV Index reached an extreme level of 11 from May to August. The colder December weather results in a safer burn time of 30 minutes, similar to the earlier winter months of January and February. As the year concludes, residents and visitors can enjoy outdoor activities while remaining mindful of their sun exposure. For more detailed UV forecasts, check out the Fujisawa UV Index.

Maximum UV Index Levels in Fujisawa for December

The chart shows the monthly maximum UV Index (UVI) for Fujisawa 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 Fujisawa typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101111111110754
Data source: Fujisawa 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 Fujisawa

In Fujisawa, Japan, December enjoys a robust average of 226 sunshine hours, mirroring November's brightness while providing a glimmering farewell to the year. This consistent sunshine follows a gradual rise from January's 187 hours to a summer peak in August with 297 hours. As winter approaches, the daylight hours notably decrease but remain relatively stable compared to earlier months, illustrating the region's transition into a cooler season without sacrificing too much light. The trend showcases a vibrant cycle of seasons, with December’s sunshine offering a warm touch amidst the chill, perfect for those looking to embrace the beauty of winter in this picturesque coastal city.

Monthly Sunshine Duration in Fujisawa: December Highlighted

The December sunshine duration represents the total number of hours Fujisawa 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.
JanFebMarAprMayJunJulAugSepOctNovDec187h224h255h269h286h262h249h297h239h205h226h226h
Data source: Fujisawa December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Fujisawa During December

In Fujisawa, Japan, the likelihood of sunny weather in December stands out prominently at 67%, marking it as one of the brighter months of the year. This trend reflects a steady increase in sunshine from the preceding months, particularly November, which enjoys a 62% chance. As we transition through the year, the increasing probabilities of sunny days suggest that while the colder months typically see reduced sunlight, December offers a refreshing contrast. Notably, this month emerges as a beacon in the winter season, inviting residents and visitors alike to bask in the clear skies before the onset of the harsher winter weather.

Percentage of Sunny Days in December in Fujisawa

The chart illustrates the percentage of sunny days in Fujisawa 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 Fujisawa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%64%41%49%24%25%35%38%29%48%62%67%
Data source: Fujisawa December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Fujisawa in December

As the year draws to a close, Fujisawa, Japan, experiences a subtle decline in daylight hours, culminating in December with only 9 hours of sunlight. This trend reflects a gradual decrease that begins after the peak of 14 hours seen in May through July, suggesting a seasonal ebbing of light as winter approaches. The transition from the long, bright days of summer to the darker winter months is marked by a distinct shift, where each month contributes to a slow but steady reduction in daylight. January and February each maintain 10 hours of daylight, but as the days grow shorter, December stands out as a gentle reminder of the winter solstice, accentuating the cozy charm of the season in this picturesque coastal town.

Average Daylight Hours in Fujisawa for December

The chart illustrates the variation in daylight duration in Fujisawa throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 3m10h 53m11h 58m13h 4m14h 1m14h 29m14h 15m13h 26m12h 22m11h 16m10h 18m9h 48m
Data source: Fujisawa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Fujisawa

As December settles over Fujisawa, Japan, the wind whispers at a steady 5.4 m/s (12 mph), aligning with the calm yet crisp atmosphere of the season. This month maintains the average strength of the winds experienced in the preceding months, particularly mirroring the stable 5.3 m/s from November and showing a slight rise when compared to the summer's lighter breezes. While the summer months bring gentle winds below 4 m/s, the return to stronger gusts in December hints at a seasonal shift, balancing tranquility with a refreshing bite in the air. Overall, December’s winds encapsulate the harmonious blend of Fujisawa's winter charm, echoing the resilience of nature as it transitions into the new year.

Average December Wind Speed in Fujisawa

The chart displays monthly wind speed patterns in Fujisawa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.35.85.45.25.33.73.35.05.25.45.35.4 m/s
Data source: Fujisawa December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Fujisawa Compares to Other Months

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

In December, temperatures range from a minimum of 3°C (37°F) to a maximum of 21°C (69°F), with an average of 11°C (52°F). The month experiences considerable precipitation, totaling 82 mm (3.2 in) over 11 days, along with a humidity level of 78%. In contrast, January has slightly cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 18°C (64°F), resulting in an average of 8°C (47°F). Precipitation decreases to 64 mm (2.5 in) over just 6 days, while humidity stays relatively stable at 76%. For more details on January weather, you can visit Fujisawa weather in January.

December tends to be milder compared to February, with average temperatures ranging from a minimum of 3°C (37°F) to a maximum of 21°C (69°F), while February sees slightly cooler averages with a minimum of 2°C (36°F) and a maximum of 17°C (63°F). December experiences more rainfall, totaling 82 mm (3.2 in) over 11 days, whereas February has less precipitation at 62 mm (2.4 in) across just 8 days. Additionally, December's humidity is higher at 78%, while February exhibits a lower humidity level of 74%. For more details about February weather in Fujisawa, you can check out Fujisawa weather in February.

In December, the weather features a minimum temperature of 3°C (37°F) and an average of 11°C (52°F), with a maximum of 21°C (69°F). This month experiences about 82 mm (3.2 in) of precipitation over 11 days and maintains a humidity level of 78%.

In contrast, March sees similar minimum and average temperatures but has a slightly cooler maximum at 19°C (66°F). Precipitation is significantly higher in March, totaling 172 mm (6.8 in) over 12 days, while humidity drops to 70%. For a more detailed insight into March weather, you can check Fujisawa weather in March.

In December, the weather features temperatures ranging from a chilly minimum of 3°C (37°F) to a comfortable maximum of 21°C (69°F), with an average of 11°C (52°F). The month experiences precipitation of 82 mm (3.2 in) over 11 days, accompanied by a humidity level of 78%. In contrast, April sees slightly warmer temperatures, with a minimum of 6°C (43°F), an average of 14°C (58°F), and a maximum of 21°C (70°F). However, it also has increased rainfall, totaling 141 mm (5.5 in) across 12 days, while humidity drops slightly to 74%. For more detailed insights, you can explore Fujisawa weather in April.

December and May present notable contrasts in weather. In December, temperatures range from a chilly minimum of 3°C (37°F) to a comfortable maximum of 21°C (69°F), with an average of 11°C (52°F). The month experiences around 82 mm (3.2 in) of precipitation over 11 days, coupled with a humidity level of 78%. In comparison, May enjoys milder temperatures, with a minimum of 12°C (54°F), an average of 18°C (65°F), and a maximum of 23°C (74°F). However, it also sees more rainfall, totaling 148 mm (5.8 in) across the same number of days, and a slightly higher humidity of 81%. For more details, visit Fujisawa weather in May.

In December, temperatures are relatively mild, with a minimum of 3°C (37°F) and an average of 11°C (52°F), whereas June offers much warmer conditions, with minimum temperatures around 16°C (62°F) and an average temperature of 21°C (70°F). Precipitation levels in June significantly increase, totaling 197 mm (7.8 in) over 13 days compared to December’s 82 mm (3.2 in) over 11 days, suggesting a wetter climate during the summer month. Additionally, June exhibits a higher humidity level of 88%, compared to December's 78%, contributing to a more muggy feel in the early summer. For more detailed information, you can refer to Fujisawa weather in June.

In December, the weather is generally cooler, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 21°C (69°F), and an average of 11°C (52°F). The month also sees approximately 82 mm (3.2 in) of precipitation over 11 days, combined with a humidity level of 78%. In contrast, July experiences much warmer conditions, where temperatures typically range from a minimum of 19°C (66°F) to a maximum of 28°C (83°F), with an average temperature of 25°C (77°F). This month is also characterized by significantly higher precipitation, totaling around 226 mm (8.9 in) over 17 days, and a humidity level that rises to 93%. For more details on July weather, visit Fujisawa weather in July.

December and August present distinct contrasts in weather. In December, temperatures range from a minimum of 3°C (37°F) to a maximum of 21°C (69°F), with an average of 11°C (52°F). The month experiences about 82 mm (3.2 in) of precipitation over approximately 11 days, alongside a humidity level of 78%. In contrast, August boasts much warmer conditions, with temperatures varying from a minimum of 21°C (70°F) to a maximum of 31°C (87°F), averaging around 27°C (80°F). This month sees higher precipitation at 129 mm (5.1 in) spread across 12 days, coupled with increased humidity at 90%. For a detailed overview of August weather, you can explore Fujisawa weather in August.

In December, the weather is considerably cooler with average temperatures ranging from a minimum of 3°C (37°F) to a maximum of 21°C (69°F). The month experiences an average precipitation of 82 mm (3.2 in) over 11 days, and humidity levels are at 78%. In contrast, September boasts much warmer temperatures, with averages from a minimum of 18°C (65°F) to a maximum of 29°C (84°F). Additionally, September tends to be wetter, receiving 208 mm (8.2 in) of rainfall over 17 days and higher humidity at 86%. For more details about September weather in Fujisawa, you can visit Fujisawa weather in September.

When comparing the weather in December and October, a distinct shift in temperature and precipitation patterns becomes evident. December features milder temperatures with a minimum of 3°C (37°F) and an average of 11°C (52°F), while October enjoys warmer conditions with a minimum of 13°C (56°F) and an average of 20°C (68°F). Precipitation also varies significantly; December sees 82 mm (3.2 in) over 11 days, whereas October is wetter, with 303 mm (11.9 in) over 17 days. Additionally, humidity levels remain relatively close, with December at 78% and October slightly higher at 83%. For more details about October's weather, you can visit Fujisawa weather in October.

December brings cooler temperatures compared to November, with a minimum of 3°C (37°F) and an average of 11°C (52°F), while November has a milder minimum of 6°C (43°F) and an average temperature of 15°C (60°F). Both months experience similar maximum temperatures of around 21°C (69°F to 71°F), but December sees a decrease in precipitation to 82 mm (3.2 in) over 11 days, compared to November’s higher precipitation of 111 mm (4.4 in) over 12 days. Humidity levels remain fairly consistent, with December at 78% and November slightly higher at 80%. For more detailed information about conditions in November, check out Fujisawa weather in November.

Compare Fujisawa's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Fujisawa

December in Fujisawa marks a transition to cooler temperatures, bringing a refreshing change from the warmer months. With its average temperature sitting around 11°C (52°F), the month features crisp mornings and moderate afternoons, offering a stark contrast to the balmy days of summer. During this time, humidity levels remain relatively high, and the city sees a notable amount of rain spread across the month. 82 mm of precipitation falls over approximately 11 days, making it one of the wetter months. This blend of cooler temperatures and increased rainfall envelops Fujisawa in a serene winter atmosphere, perfect for cozy indoor activities or enjoying the city's festive spirit. For a deeper understanding of weather patterns throughout the year, visit Fujisawa Climate.