Last updated: August 21, 2025
December in Oarai, Japan, offers a brisk and invigorating climate, with temperatures ranging from a pleasant maximum of 20°C (68°F) to a cool minimum of 0°C (33°F), averaging around 8°C (47°F). Visitors can expect an atmosphere enriched by 77% humidity, creating a unique coastal experience. While the month sees 73 mm (2.9 in) of precipitation over approximately 8 days, this blend of mild temperatures and occasional rain invites outdoor exploration and cozy indoor retreats. Embrace the winter charm of Oarai as it transforms into a picturesque seaside destination during the holiday season.
As December settles in Oarai, Japan, temperatures gradually shift from the mild autumn chill to a crisp winter ambiance. The minimum temperature hovers around 0°C (33°F), ensuring that the mornings and evenings carry a refreshing bite. With an average temperature of 8°C (47°F), the days remain comfortable but cool, offering a pleasant respite compared to the colder months to come. The maximum temperature can reach up to 20°C (68°F), hinting at the last vestiges of warmth before winter fully establishes its hold. This steady transition marks December as a month where Oarai prepares for the chill, setting the stage for a serene winter landscape.
In December, Oarai, Japan, experiences a moderate level of precipitation, registering 73 mm (2.9 in) across 8 days. This amount is a slight increase from November's rainfall, yet significantly lower than the earlier months of spring and summer, where precipitation peaks at over 200 mm in July. December’s rain often acts as a gentle precursor to the winter season, providing a much-needed moisture balance before the colder months set in. As the year concludes, the weather reflects a gradual shift towards the drier conditions typical of the upcoming winter, even as it retains a rhythm of occasional damp days that punctuate the chill.
In Oarai, Japan, December's humidity sits at a comfortable 77%, mirroring the levels experienced in November. As the year transitions into winter, humidity tends to stabilize after the more extreme highs of summer, where July and August peak at a steamy 92% and 90%, respectively. The months leading up to December, especially June through September, showcase a significant rise in moisture content, with June recording a notable 87%. However, as the year closes, the humidity begins to dip, signaling a shift towards drier winter conditions. This trend highlights Oarai's coastal climate, where humidity remains relatively high throughout the year yet fluctuates seasonally, offering a unique blend of comfort and crispness in the final month of the year.
In December, Oarai, Japan experiences a moderate UV Index of 3, allowing residents and visitors to enjoy the outdoors with a relatively low risk of harm from sun exposure. This month marks a notable drop in UV levels compared to the intensely high values seen during the summer months, particularly in June and July, where the UV Index peaked at 11, indicating an extreme exposure risk. As we transition into winter, the burn time increases back to 30 minutes, similar to the beginning of the year, emphasizing the importance of protective measures while still enjoying the crisp winter air. For more detailed information, visit Oarai UV Index.
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In Oarai, Japan, December brings a delightful embrace of sunshine, with the month averaging around 226 hours of daylight. This marks a subtle decline from the sunniest summer months, where August peaks at 288 hours, yet remains vibrant compared to the dreary winter days found in January, which sees only 187 hours. The trend throughout the year reveals a gradual increase in sunshine from the chilled beginnings of winter in January, peaking in late spring and summer, before tapering off in the fall. As the year closes, December’s sunny days offer a warm respite, reminding residents of the beauty in the winter season's quiet charm.
In Oarai, Japan, December marks a notable shift in the likelihood of sunny weather, with a 65% chance of sun illuminating the crisp winter days. As the year draws to a close, this figure stands out as a continuation of the upward trend observed since November, which had a solid 61% chance. Considering the fluctuating rates of the earlier months, where the chance of sunshine often dips below 50%, December brings a refreshing brightness, making it a perfect time for outdoor explorations and festive activities. This month not only offers longer glimpses of sunlight compared to the chilly winter months ahead but also suggests that December is a promising time to soak up the sun’s rays before the deep winter sets in.
In Oarai, Japan, the daylight duration experiences a captivating ebb and flow throughout the year, painting a picture of seasonal transformation. December, with its 9 hours of daylight, mirrors the early months of January and November, signaling winter's arrival as the days grow shorter. The year begins with similar brevity, but as spring approaches in March, daylight extends to 11 hours, ushering in longer, brighter days. The pinnacle of summer in June and July sees an impressive 14 hours, fostering a vibrant atmosphere perfect for outdoor exploration. This abundance of light gradually recedes into late summer and autumn, culminating in the returning cycle of shorter days. Thus, Oarai's daylight patterns not only highlight seasonal shifts but also invite residents and visitors alike to embrace the varying rhythms of nature throughout the year.
As December settles over Oarai, Japan, the winds pick up to a refreshing average speed of 4.3 m/s (10 mph), mirroring the gusty conditions typical of the early winter months. This increase in wind speed is part of an interesting trend, as the winds tend to stabilize around this brisk pace in late fall and early winter. After a gradual decline during the humid summer months, where August sees a gentle 3.7 m/s (8 mph), the winds strengthen once again in November before renewing their vigor in December. This consistent airflow not only defines the season's character but also enhances the coastal charm of Oarai, creating a crisp atmosphere that invites both residents and visitors to embrace the majestic winter landscape.
Weather in Oarai varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Oarai, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January present distinct weather patterns, with January typically being colder than December. In December, temperatures range from a minimum of 0°C (33°F) to a maximum of 20°C (68°F), while January sees a drop with minimums reaching -3°C (27°F) and maximums peaking at 15°C (60°F). Precipitation in December totals 73 mm (2.9 in) over 8 days, compared to January's lighter 53 mm (2.1 in) across just 6 days. Humidity remains quite similar, sitting at 77% in December and slightly decreasing to 76% in January. For more specifics on January conditions, you can check out Oarai weather in January.
In December, temperatures range from a minimum of 0°C (33°F) to a maximum of 20°C (68°F), with an average temperature of 8°C (47°F). The month experiences 73 mm (2.9 in) of precipitation over 8 days, accompanied by a humidity level of 77%. In contrast, February sees slightly cooler conditions, with temperatures dipping to a minimum of -1°C (30°F) and peaking at 18°C (65°F), averaging 6°C (44°F). Precipitation decreases to 50 mm (2.0 in) over the same number of days, with humidity remaining relatively constant at 75%. For more specific details on February weather, you can refer to Oarai weather in February.
In December, the weather features mild temperatures ranging from a minimum of 0°C (33°F) to a maximum of 20°C (68°F), with an average temperature of 8°C (47°F). The month experiences around 73 mm (2.9 in) of precipitation over 8 days, coupled with a humidity level of 77%.
Conversely, March sees a slightly warmer average temperature of 10°C (50°F), while still maintaining the same maximum of 20°C (69°F). However, it is notably wetter, with total precipitation reaching 150 mm (5.9 in) across 11 days, and humidity dropping to 72%. For more detailed information on the weather in March, you can visit Oarai weather in March.
In December, the weather is notably cooler, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 20°C (68°F) and an average of 8°C (47°F). This month experiences moderate humidity at 77% and receives about 73 mm (2.9 in) of precipitation over 8 days. In contrast, April showcases a more temperate climate, with minimum temperatures of 3°C (37°F), average highs of 13°C (56°F), and maximums reaching 23°C (74°F). Although it is slightly warmer, April is also wetter, accumulating 129 mm (5.1 in) of rainfall across 11 days, with humidity slightly lower at 73%. For a more detailed look at the weather during this month, you can check Oarai weather in April.
December and May present distinctly different weather experiences. December typically sees cooler temperatures, with averages around 8°C (47°F) and a maximum of 20°C (68°F). In contrast, May boasts milder conditions, with an average temperature of 18°C (65°F) and highs reaching up to 27°C (82°F). While December usually has about 73 mm (2.9 in) of precipitation over 8 days, May experiences a more significant rainfall of 143 mm (5.6 in) spread over 12 days. Additionally, humidity levels in May rise slightly to 80%, compared to December's 77%. For a closer look at the weather during this vibrant spring month, check out Oarai weather in May.
December and June present contrasting weather patterns, each with their own unique characteristics. In December, temperatures range from a chilly minimum of 0°C (33°F) to a pleasant maximum of 20°C (68°F), with an average of 8°C (47°F). The month sees about 73 mm (2.9 in) of precipitation spread over approximately 8 days, and the humidity hovers at 77%. In stark contrast, June experiences a milder climate with minimum temperatures starting at 15°C (58°F) and peaking at 30°C (86°F), averaging around 21°C (70°F). However, this month is rainier, with total precipitation reaching 155 mm (6.1 in) over 14 days and humidity levels rising to 87%. This significant difference in both temperature and precipitation showcases the shift from the cool, dampness of winter to the warm, humid conditions of summer. For more specifics on the June conditions, check out Oarai weather in June.
December and July present contrasting weather conditions. In December, temperatures range from a chilly 0°C (33°F) at night to a mild 20°C (68°F) during the day, with an average of 8°C (47°F). The month sees about 73 mm (2.9 in) of precipitation over approximately 8 days and maintains a humidity level of 77%. In stark contrast, July experiences much warmer temperatures, with nighttime lows of 19°C (66°F) and daytime highs reaching up to 31°C (89°F), averaging around 24°C (76°F). This month is also significantly wetter, receiving around 209 mm (8.2 in) of rainfall spread across 19 days, accompanied by a higher humidity of 92%. For more detailed insights, check out Oarai weather in July.
December and August present stark contrasts in weather. December features cooler temperatures, with a minimum of 0°C (33°F) and an average of 8°C (47°F), peaking at 20°C (68°F), while August boasts much warmer conditions, with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 33°C (92°F) and an average of 26°C (80°F). Precipitation is also higher in August, totaling 109 mm (4.3 in) across 13 days compared to December's 73 mm (2.9 in) over 8 days. Additionally, August experiences higher humidity at 90%, compared to December's 77%. For a closer look at Oarai's August weather specifics, visit Oarai weather in August.
December and September present stark contrasts in weather. December experiences cooler temperatures, with a minimum of 0°C (33°F) and an average of 8°C (47°F), while September enjoys much warmer conditions, with a minimum of 15°C (60°F) and an average of 23°C (74°F). Precipitation is also higher in September, totaling 176 mm (6.9 in) over 17 days, compared to December’s 73 mm (2.9 in) spread across 8 days. Both months have high humidity levels, but September's 84% slightly surpasses December's 77%. For further specifics on September’s climate, visit Oarai weather in September.
December and October showcase striking contrasts in weather patterns. In December, temperatures range from a chilly minimum of 0°C (33°F) to a maximum of 20°C (68°F), with an average of around 8°C (47°F). The month sees significant rainfall, totaling 73 mm (2.9 in) over 8 days, along with a humidity level of 77%. In stark contrast, October experiences milder temperatures, with minimums of 10°C (51°F) and maximums reaching up to 29°C (85°F), averaging about 19°C (66°F). Rainfall is also notably heavier in October, accumulating 258 mm (10.2 in) over 16 days, with a slightly higher humidity of 80%. For a more detailed look at October's weather, check out Oarai weather in October.
In comparing the weather of December and November, December tends to be cooler, with average temperatures ranging from 0°C (33°F) to a maximum of 20°C (68°F), while November enjoys milder temperatures, from a minimum of 4°C (39°F) to a maximum of 22°C (72°F). Notably, precipitation levels are higher in November, with 102 mm (4.0 in) over 10 days compared to December's 73 mm (2.9 in) over 8 days. Despite the differences in temperature and rainfall, both months experience a consistent humidity level of 77%. For a more detailed look at November's weather, check out Oarai weather in November.
As December settles in Oarai, the weather begins to transform, offering a unique contrast to the milder months. Temperatures cool down, with daily averages dipping to a crisp 8°C, and the chances of experiencing a chill as low as 0°C become more frequent. While the region still enjoys some warmer days, it is the increased humidity and precipitation—with about 73 mm falling over 8 days—that truly marks this month's distinct shift. Embrace the transition of the season by exploring more about Oarai's climate and how it influences local culture and activities by visiting Oarai Climate.