Last updated: August 21, 2025
In December, Shimonoseki, Japan, experiences a temperate climate with maximum temperatures reaching 20°C (68°F) and average temperatures hovering around 10°C (50°F). The minimum can dip to a chilly 1°C (34°F), reminding residents of the approaching winter. With an overall precipitation of 89 mm (3.5 in) spread over 12 days, December often brings a mix of rainy and clear spells. The humidity levels, averaging around 75%, contribute to a crisp, cool atmosphere perfect for enjoying the tranquil beauty of this coastal city.
In Shimonoseki, Japan, December heralds the transition into winter, bringing with it a noticeable drop in temperatures. The month ushers in a minimum of 1°C (34°F), while the average temperature settles around 10°C (50°F), peaking at a maximum of 20°C (68°F). This shift can be seen as a continuation of the cooling trend that begins in November, but December still offers a mild respite compared to the frigid conditions of January and February. As the year draws to a close, the city enjoys a blend of crisp air and mild afternoons, making it an ideal time for cozy gatherings and festive celebrations. The contrast between the cool mornings and warmer afternoons highlights the city's transitional climate, reminding visitors of the charm that winter brings to this picturesque location.
In December, Shimonoseki experiences an average precipitation of 89 mm (3.5 in), with approximately 12 rainy days marking the end of the year. This amount is slightly lower than the preceding months, yet it remains a significant contributor to the region's overall annual rainfall. Notably, December's figures stand in contrast to November’s considerable drop in precipitation, which fell to 54 mm (2.1 in) over just 8 days. This suggests that while the city welcomes the holiday season with milder rains, it still prepares for a wet winter, aligning with the wetter trend seen throughout the summer months. As the year closes, Shimonoseki’s precipitation paints a picture of a region that balances seasonal shifts, maintaining a rhythm of rains that supports its lush landscapes.
As the year draws to a close, December humidity in Shimonoseki, Japan, hovers at a comfortable 75%, marking a slight decline from the high levels seen in the summer months. From June to August, the city experiences its peak humidity with readings exceeding 90%, creating a notably muggy atmosphere. As autumn approaches, humidity begins to wane, dropping to 76% in November before stabilizing in December. This seasonal trend showcases a gradual transition from the sweltering, moisture-laden air of summer to a more moderate climate, making December a refreshing pause before the humidity peaks of the following year.
In December, Shimonoseki experiences a moderate UV Index of 3, indicative of a significant seasonal shift as winter approaches. The burn time stretches to 30 minutes, allowing residents and visitors to enjoy outdoor activities with a bit more time under the sun compared to the preceding months of high and extreme UV levels. This decline from the summer's intense exposure highlights the importance of adjusting sun safety measures as the new year approaches. To stay informed and prepare for potential sun exposure, you can check the detailed forecast at Shimonoseki UV Index.
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In Shimonoseki, Japan, December marks the end of a year brimming with sunlight, as the city basks in an average of 215 hours of bright days. This month, while slightly less sunny than its vibrant summer peak of 305 hours in August, still offers a comforting glow during the winter months. As the seasons transition from the lush brightness of spring and early summer, which boast the highest averages of above 300 hours, December’s daylight feels like a warm embrace in the cooling air. Following November, which reveals a gradual tapering with 235 hours, December shows a trend of diminishing light leading into winter, yet it remains a cherished time to enjoy the softer, golden rays that grace the end of the year.
In December, Shimonoseki, Japan experiences a 38% chance of sunny weather, marking a slight dip compared to the autumn months. Interestingly, the likelihood of sunshine tends to fluctuate throughout the year, with October boasting a generous 59% chance, followed closely by November at 46%. As temperatures begin to cool, December's opportunity for clear skies falls below that of both the previous months, hinting at the seasonal transition. While December might not be the sunniest month, it still offers a reasonable chance for some pleasant weather amidst the winter chill. Overall, as we analyze the trends, it becomes clear that the later months of the year exhibit more sun, creating a cozy backdrop for the holiday season.
As winter sets in, December in Shimonoseki, Japan, marks a transition into shorter days, with just 9 hours of daylight. This reduction continues the trend observed throughout the colder months, where daylight dwindles from 11 hours in October to a low of 10 hours in November. The daylight duration remains consistent at 10 hours in January and February, before gradually increasing with the arrival of spring. From March onward, the days gradually lengthen again, reaching their peak around the lush June and July, where daylight stretches to 14 hours. This cyclical pattern underscores the seasonal rhythm of Shimonoseki, inviting both residents and visitors to embrace the beauty of each phase, even as daylight ebbs in December.
As December arrives in Shimonoseki, Japan, the winds begin to pick up slightly, with an average speed of 6.4 m/s (14 mph). This marks a notable increase from the calmer breezes of the summer months, where winds dipped to around 4.0 m/s (9 mph) in July. Gradually, the wind speeds rose through the autumn, peaking in December just shy of the wintery January highs of 6.5 m/s (15 mph). The shift from the gentler winds of previous months to the more spirited gusts of December encapsulates the transition into winter, bringing a brisk yet invigorating feel to the air as the year comes to a close.
Weather in Shimonoseki varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Shimonoseki, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather is characterized by milder temperatures, with a minimum of 1°C and an average of 10°C, reaching a maximum of 20°C. The month sees about 89 mm of precipitation over 12 days, accompanied by a humidity level of 75%. In contrast, January experiences cooler temperatures, as the minimum drops to -1°C, with an average of 8°C and a maximum of 17°C. Precipitation is slightly lower at 84 mm, also spread over 12 days, while humidity increases slightly to 76%. For more detailed information about the weather in January, you can visit Shimonoseki weather in January.
In December, temperatures typically range from a minimum of 1°C (34°F) to a maximum of 20°C (68°F), with an average of 10°C (50°F). The month experiences about 89 mm (3.5 in) of precipitation over 12 days and maintains a humidity level of 75%. In contrast, February sees slightly cooler temperatures, with a minimum of -1°C (31°F) and an average of 8°C (46°F), peaking at 18°C (65°F). Precipitation increases slightly to 93 mm (3.6 in) over 11 days, while humidity drops to 72%. For a comprehensive look at February weather specifically, you can explore Shimonoseki weather in February.
In December, temperatures range from a minimum of 1°C (34°F) to a maximum of 20°C (68°F), with an average around 10°C (50°F). The month experiences about 89 mm (3.5 in) of precipitation over approximately 12 days, and humidity is relatively high at 75%. In contrast, March sees slightly warmer temperatures, with a minimum of 4°C (39°F) and a maximum of 18°C (64°F), averaging at 11°C (52°F). However, it is considerably wetter, receiving 165 mm (6.5 in) of precipitation across the same number of days, but with a lower humidity level of 69%. For more detailed information on March weather, you can visit Shimonoseki weather in March.
Comparing the weather in December and April reveals a notable shift in temperature and precipitation patterns. In December, temperatures range from a minimum of 1°C (34°F) to a maximum of 20°C (68°F), with an average of 10°C (50°F). The month is characterized by 89 mm (3.5 in) of precipitation over 12 days, while humidity levels hover around 75%. In contrast, April brings a milder climate, with temperatures starting at a minimum of 7°C (45°F) and reaching up to 22°C (71°F), averaging 14°C (58°F). Although April sees an increase in total precipitation to 129 mm (5.1 in), it occurs over just 10 days, maintaining the same humidity level of 75%. For more detailed information, you can check Shimonoseki weather in April.
In December, temperatures in Shimonoseki can range from a chilly 1°C (34°F) to a milder 20°C (68°F), with an average around 10°C (50°F). The month sees approximately 89 mm (3.5 in) of precipitation over 12 days, coupled with a humidity level of 75%. In contrast, May brings significantly warmer weather, with minimum temperatures starting at 12°C (54°F) and reaching a maximum of 25°C (77°F), averaging 18°C (65°F). Although May experiences a higher total precipitation of 141 mm (5.5 in) spread over 10 days, the humidity increases to 84%, creating a more humid atmosphere. For more detailed insights, you can refer to Shimonoseki weather in May.
When comparing December and June weather in Shimonoseki, a stark contrast in temperatures and precipitation becomes evident. December sees cooler temperatures, ranging from a minimum of 1°C (34°F) to a maximum of 20°C (68°F), with an average of 10°C (50°F). The month experiences 89 mm (3.5 in) of precipitation over approximately 12 days, while humidity sits at 75%. In contrast, June boasts warmer weather with a minimum temperature of 16°C (62°F) and a maximum of 27°C (81°F), averaging around 21°C (71°F). Although June is generally sunnier, it also receives higher rainfall, with 194 mm (7.7 in) of precipitation spread over 11 days and a humidity level of 88%. For more details about June weather in Shimonoseki, you can visit Shimonoseki weather in June.
December and July in Shimonoseki present contrasting weather conditions. December experiences cooler temperatures, with a minimum of 1°C (34°F) and an average of 10°C (50°F), while July is notably warmer, featuring a minimum of 20°C (69°F) and an average of 25°C (78°F). Precipitation is also more pronounced in July, totaling 295 mm (11.6 in) over 16 days, compared to December's 89 mm (3.5 in) across 12 days. Additionally, July's humidity is significantly higher at 95%, in stark contrast to December's 75%. For more details, check Shimonoseki weather in July.
December and August present contrasting weather patterns in Shimonoseki. December experiences cooler temperatures, with a minimum of 1°C (34°F) and an average of 10°C (50°F), while August boasts much warmer conditions, with temperatures ranging from a minimum of 21°C (69°F) to an average of 27°C (81°F). Precipitation is also significantly higher in August, totaling 251 mm (9.9 in) over 13 days, compared to December's 89 mm (3.5 in) across 12 days. Moreover, humidity levels peak in August at 93%, making it a much more humid month than December, which has a lower humidity of 75%. For more details about August weather, visit Shimonoseki weather in August.
December and September present significantly different weather conditions. In December, temperatures range from a chilly minimum of 1°C (34°F) to a comfortable maximum of 20°C (68°F), with an average of around 10°C (50°F). The month is relatively wet, receiving about 89 mm (3.5 in) of precipitation over 12 days, and the humidity hovers at 75%. In contrast, September is much warmer, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 32°C (89°F), an average of 24°C (76°F). This month experiences higher precipitation levels, totaling 226 mm (8.9 in) over the same number of rainy days, resulting in a humidity level of 84%. For more details on the weather during this time, you can check Shimonoseki weather in September.
In comparing the weather of December to that of October, it's clear that December is considerably cooler. While average temperatures in October typically range from a minimum of 14°C (57°F) to a maximum of 27°C (82°F), December sees a drop with averages between 1°C (34°F) and 20°C (68°F). Humidity levels also show slight differences, with December at 75% and October slightly higher at 79%. Additionally, October experiences more rainfall, accumulating 121 mm (4.7 in) over 11 days, compared to December’s 89 mm (3.5 in) over 12 days. For a more detailed look at October weather, you can check out Shimonoseki weather in October.
In comparing the weather of December and November, December tends to be cooler, with minimum temperatures dropping to 1°C (34°F) compared to November's milder low of 8°C (46°F). The average temperature also reflects this change, sitting at 10°C (50°F) in December, while November enjoys a warmer average of 15°C (59°F). Additionally, December experiences more precipitation with 89 mm (3.5 in) over 12 days, compared to November's 54 mm (2.1 in) across 8 days. Despite the slight increase in humidity from 76% in November to 75% in December, the overall weather in December feels much more brisk and damp. For a closer look at November's conditions, you can visit Shimonoseki weather in November.
As December settles in Shimonoseki, the city experiences a distinct shift in weather compared to other months. The temperatures begin to dip, bringing a cooler feel with averages settling around 10°C. While daytime highs can still reach a pleasant 20°C, it’s the crisp evenings that mark the change of season. With 12 days of precipitation and a humidity level hovering at 75%, December tends to be one of the wetter months, creating a refreshing atmosphere that contrasts with the drier periods of summer. For more insights into Shimonoseki’s unique weather patterns, visit Shimonoseki Climate.