December Weather in Minamiawaji, Japan

Last updated: August 21, 2025

December in Minamiawaji, Japan, is characterized by a mild yet damp climate. With maximum temperatures reaching 20°C (69°F) and an average of 11°C (52°F), the month maintains a chilly ambiance, particularly at night when it can drop to a minimum of 4°C (39°F). Rainfall plays a significant role, with 66 mm (2.6 in) of precipitation over about 9 days, contributing to the region's high humidity level of 82%. This combination creates a brisk atmosphere perfect for enjoying the lush, scenic beauty of the area during the winter season.

December Temperature in Minamiawaji

In December, Minamiawaji experiences a gentle transition into winter, with temperatures settling between 4°C (39°F) at night and peaking around 20°C (69°F) during the day. The average temperature of 11°C (52°F) suggests a cool but pleasant month, especially when compared to the chilly depths of January and February that follow. Interestingly, December marks a shift towards colder nights, contrasting with the warmer evenings of the preceding months. As the year draws to a close, the coastal city begins to embrace a winter atmosphere, while still enjoying mild daytime warmth, making it a unique and inviting time to visit.

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

The chart illustrates December temperature patterns in Minamiawaji, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Minamiawaji, 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).
JanFebMarAprMayJunJulAugSepOctNovDec474651576470778177696152
Data source: Temperature data for Minamiawaji 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 Minamiawaji

December in Minamiawaji, Japan, marks a gentle transition into winter, characterized by a moderate precipitation total of 66 mm (2.6 in) spread over 9 days. This marks a slight increase from the previous month, November, which saw 57 mm of rain. As the year winds down, December's rainfall paves the way for the drier months ahead, yet it retains a noticeable contrast to the heavy downpours typical of the summer season. With December's precipitation remaining significantly lower than the peaks observed in October and July, the overall trend illustrates a gradual tapering of rainfall as the region prepares for the cooler, more stable weather of winter. This shift not only reflects seasonal changes but also supports the area's agriculture with timely moisture before the landscape settles into a winter slumber.

December Precipitation Trends in Minamiawaji

The chart displays monthly precipitation patterns in Minamiawaji, 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 Minamiawaji, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec52621121221601772751281983105766
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Minamiawaji

In December, Minamiawaji experiences a humidity level of 82%, which reflects a slight dip compared to the peak summer months of July and August, both at 92%. This seasonal transition highlights a gradual decrease in humidity from the steamy highs of summer, bringing a refreshing, crisp atmosphere to the island. Additionally, December's humidity is relatively close to the levels in January and November, suggesting a persistent moisture presence typical for this region during winter. Overall, while the winter months offer a reprieve from the intense humidity of midsummer, December maintains a certain humidity that underscores the area's tropical influences, ensuring that the air remains soft and embracing as the year draws to a close.

December Average Humidity in Minamiawaji

This chart illustrates the average monthly humidity levels in Minamiawaji, 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 Minamiawaji is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%73%74%84%86%92%92%87%85%84%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Minamiawaji

In December, Minamiawaji experiences a UV Index of 4, indicating a moderate level of solar radiation with a recommended burn time of 30 minutes. This mirrors the conditions seen in January and November, suggesting a slight seasonal dip in UV exposure as winter sets in. Throughout the year, UV levels escalate dramatically from the moderate levels in the colder months to an alarming peak in April and May, where they reach an extreme UV Index of 11 or higher. As summer unfolds, July sees the highest exposure, with a UV Index of 12, drastically reducing burn time to just 10 minutes. This trend underscores the importance of sun safety, especially during the peak months. For more detailed information, visit Minamiawaji UV Index.

Maximum UV Index Levels in Minamiawaji for December

The chart shows the monthly maximum UV Index (UVI) for Minamiawaji 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 Minamiawaji typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458111111121110754
Data source: Minamiawaji 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 Minamiawaji

In Minamiawaji, Japan, December ushers in a cozy atmosphere with 216 hours of sunshine, marking a gentle decline from the vibrant glow of August, which boasts a remarkable 316 hours. As the year unfolds, it's evident that spring and early summer bring the most radiant days, peaking in May with 297 hours. However, as autumn sets in, the daylight gradually diminishes, with November showing 237 hours before tapering off in December. This trend highlights a seasonal rhythm where the warmth of summer contrasts sharply with the more serene and subdued light of winter, inviting residents and visitors alike to embrace the tranquil beauty of the shorter days.

Monthly Sunshine Duration in Minamiawaji: December Highlighted

The December sunshine duration represents the total number of hours Minamiawaji 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.
JanFebMarAprMayJunJulAugSepOctNovDec182h227h266h283h297h278h279h316h253h242h237h216h
Data source: Minamiawaji December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Minamiawaji During December

Minamiawaji, Japan, experiences a notable increase in sunny weather as December rolls in, boasting a 59% chance of sunshine. This uptick follows the generally cloudy months of summer and early autumn, where sunlight was less frequent, with chances dropping as low as 26% in June. Interestingly, the trend shows a positive trajectory leading into the winter, with October and November also enjoying respectable sun probabilities of 58% and 55% respectively. As residents and visitors alike prepare for the winter season, December's brightness offers a cheerful contrast to the dreariness often associated with colder months, making it a delightful time to soak up the sun before the new year.

Percentage of Sunny Days in December in Minamiawaji

The chart illustrates the percentage of sunny days in Minamiawaji 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 Minamiawaji experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec50%56%45%49%32%26%31%32%30%58%55%59%
Data source: Minamiawaji December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Minamiawaji in December

As the year unfolds in Minamiawaji, Japan, daylight duration experiences a rhythmic shift, mirroring the changing seasons. January and February each bask in 10 hours of daylight, heralding a gentle transition into spring. By March, the days stretch to 11 hours, and as April ushers in blooming life, daylight flourishes to 13 hours. This brightness peaks in June and July with an impressive 14 hours, the longest of the year, inviting locals to revel in outdoor pursuits. However, come August, daylight begins its gradual decline, returning to 13 hours, and by December, the days are noticeably shorter, shrinking to 9 hours. This consistent ebb and flow of daylight not only marks the passage of time but also paints the picturesque seasonal landscape of Minamiawaji.

Average Daylight Hours in Minamiawaji for December

The chart illustrates the variation in daylight duration in Minamiawaji throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 8m10h 56m11h 58m13h 2m13h 56m14h 23m14h 9m13h 22m12h 21m11h 17m10h 22m9h 53m
Data source: Minamiawaji daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Minamiawaji

As December arrives in Minamiawaji, Japan, residents feel the brisk embrace of the winter winds, with average gusts reaching 7.5 m/s (17 mph). This marks a notable uptick from the earlier months, where wind speeds gradually declined from January's 7.3 m/s down to a mellow 3.7 m/s in July. Following the summer calm, the winds pick up momentum again in the fall, peaking in December, bringing a refreshing chill that contrasts sharply with the lighter breezes of mid-year. This seasonal shift not only invigorates the landscape but also heralds the onset of a dynamic winter, beautifully showcasing nature's cyclical rhythm in this coastal gem.

Average December Wind Speed in Minamiawaji

The chart displays monthly wind speed patterns in Minamiawaji, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.36.76.26.15.44.73.75.94.85.86.27.5 m/s
Data source: Minamiawaji December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Minamiawaji Compares to Other Months

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

In December, temperatures in the region tend to be milder, with a minimum of 4°C (39°F) and an average of 11°C (52°F), peaking at 20°C (69°F). The month sees a higher total precipitation of 66 mm (2.6 in) over 9 days, maintaining a consistent humidity level of 82%. By contrast, January brings cooler weather, with temperatures dropping to a minimum of 1°C (34°F) and an average of 8°C (47°F), while the maximum reaches 17°C (63°F). Precipitation decreases to 52 mm (2.1 in) over 7 days, yet humidity remains steady at 82%. For more detailed information on January weather, you can refer to Minamiawaji weather in January.

December and February exhibit distinct weather patterns, with December generally being a bit warmer. In December, temperatures range from a minimum of 4°C (39°F) to a maximum of 20°C (69°F), averaging around 11°C (52°F). The month also sees an average humidity of 82% and about 66 mm (2.6 in) of precipitation over nine days. In contrast, February features cooler conditions, with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 16°C (61°F), averaging 8°C (46°F). February brings slightly less precipitation at 62 mm (2.5 in) over seven days and a lower humidity level of 79%. For more detailed information, you can visit Minamiawaji weather in February.

In December, the weather tends to be milder, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 20°C (69°F) and an average temperature of 11°C (52°F). This month also experiences 66 mm (2.6 in) of precipitation over about 9 days, accompanied by a higher humidity level of 82%. In contrast, March sees slightly cooler temperatures, with a maximum of 17°C (62°F) and an average of 11°C (51°F). However, it is a wetter month, with 112 mm (4.4 in) of precipitation over approximately 10 days and a lower humidity of 73%. For more detailed information about the weather in March, you can check Minamiawaji weather in March.

In December, the weather is cooler with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 20°C (69°F) and an average of 11°C (52°F). The month sees moderate precipitation of 66 mm (2.6 in) over about 9 days, accompanied by relatively high humidity at 82%. In contrast, April offers a milder climate, starting with slightly warmer minimum temperatures of 7°C (45°F) and an average of 14°C (57°F), while still reaching a maximum of 20°C (68°F). However, precipitation is higher in April at 122 mm (4.8 in) over just 8 days, with a slight dip in humidity to 74%. For more specific details about April weather, you can check Minamiawaji weather in April.

In December, the weather is cooler, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 20°C (69°F) and an average of 11°C (52°F). This month experiences less precipitation, with around 66 mm (2.6 in) falling over 9 days, and the humidity sits at a relatively high 82%. In contrast, May brings warmer temperatures, with a minimum of 12°C (54°F) and a peak of 23°C (73°F), averaging around 18°C (64°F). However, it also sees increased rainfall, with about 160 mm (6.3 in) over the same number of days, resulting in a slightly higher humidity level of 84%. For more details, you can check Minamiawaji weather in May.

The weather in December is generally cooler compared to June, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 20°C (69°F) and an average of 11°C (52°F). In contrast, June sees much warmer temperatures, with a minimum of 17°C (63°F) and a maximum of 25°C (78°F), resulting in an average of 21°C (71°F). Additionally, June experiences higher overall precipitation, totaling 177 mm (7.0 in) over 11 days, compared to December's 66 mm (2.6 in) over 9 days. Humidity levels are slightly higher in June at 86% compared to 82% in December, adding to the warmth of the early summer month. For more detailed weather specifics, check out Minamiawaji weather in June.

December and July present contrasting weather patterns, highlighting the shift from winter to summer. In December, temperatures range from a cool minimum of 4°C (39°F) to a mild maximum of 20°C (69°F), with an average of 11°C (52°F). The month experiences moderate precipitation, with 66 mm (2.6 in) falling over 9 days, and humidity levels at 82%. Conversely, July boasts significantly warmer conditions, with minimum temperatures starting at 22°C (71°F) and reaching an average of 25°C (78°F), peaking at 29°C (84°F). This summer month is wetter, receiving 275 mm (10.8 in) of rain over 15 days, along with high humidity at 92%. The differences between these months are stark, illustrating the diverse climate of the region. For further details, you can check Minamiawaji weather in July.

In December, the weather is significantly cooler, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 20°C (69°F) and an average of 11°C (52°F). The month experiences moderate precipitation of 66 mm (2.6 in) over about 9 days, accompanied by a humidity level of 82%. In contrast, August brings much warmer conditions, with temperatures ranging from a minimum of 23°C (73°F) to a maximum of 30°C (87°F) and an average of 27°C (81°F). August also sees higher precipitation levels of 128 mm (5.0 in) across the same number of rainy days, but with slightly higher humidity at 92%. For more detailed information about the August climate, visit Minamiawaji weather in August.

In December, the weather features cooler temperatures, with a minimum of 4°C (39°F) and an average of 11°C (52°F), peaking at around 20°C (69°F). The month sees 66 mm (2.6 in) of precipitation over 9 days and maintains a humidity level of 82%. In contrast, September is characterized by much warmer conditions, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 29°C (85°F) and an average of 25°C (77°F). However, September also brings higher rainfall, accumulating 198 mm (7.8 in) over 15 days and a slightly higher humidity level of 87%. For more detailed insights, visit Minamiawaji weather in September.

In comparing the weather of December and October, December tends to be cooler, with minimum temperatures dropping to around 4°C (39°F) compared to October's higher minimum of 15°C (59°F). The average temperature in December is about 11°C (52°F), while October enjoys a warmer average of 21°C (70°F). Additionally, October experiences significantly more rainfall, with 310 mm (12.2 in) over 12 days, contrasting December's 66 mm (2.6 in) across 9 days. Humidity levels are relatively similar in both months, with December at 82% and October at 85%. For more information on October weather specifics, you can visit Minamiawaji weather in October.

In December, the weather becomes cooler with a minimum temperature of 4°C (39°F) compared to November's milder minimum of 9°C (49°F). The average temperature drops from 16°C (61°F) in November to 11°C (52°F) in December, while the maximum temperatures are slightly lower as well, with December reaching 20°C (69°F) compared to November's 22°C (72°F). Precipitation increases slightly in December, with 66 mm (2.6 in) over 9 days, compared to November's 57 mm (2.3 in) over 7 days. Humidity remains relatively high in both months, with December at 82% and November at 84%, creating a damp and chilly atmosphere. For more details on November's weather, you can visit Minamiawaji weather in November.

Compare Minamiawaji's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Minamiawaji

As December ushers in the chill of winter, Minamiawaji experiences a distinct transition from the milder weather of previous months. With average temperatures dipping significantly, the atmosphere becomes crisp, characterized by higher humidity levels and occasional precipitation. While the region sees a fair share of rainy days, the overall climate remains relatively temperate compared to the harsher conditions found in many other parts of Japan. This unique blend makes December a refreshing yet cozy time to explore the area’s beauty. For a deeper insight into the overall conditions throughout the year, visit Minamiawaji Climate.