Last updated: August 21, 2025
In December, Yilan, China experiences a stark winter climate characterized by an average temperature of -15°C (5°F), with daytime highs barely reaching 7°C (45°F) and nighttime lows plummeting to -29°C (-20°F). This frigid month is also marked by low precipitation, totaling 10 mm (0.4 in) over just 2 days, providing a crisp, dry atmosphere. With a humidity level of 72%, residents and visitors alike can feel the cold penetrating the air, making for a quintessential winter experience. Embrace the chill and discover the unique beauty of Yilan in December!
In Yilan, China, December marks a stark transition into the depths of winter, with temperatures dipping significantly as the month progresses. The month starts with minimums reaching around -29°C (-20°F) and averages resting at -15°C (5°F), presenting a chilly landscape that is well entrenched in the cold season. Maximum temperatures barely rise above 7°C (45°F), signaling the dominance of frost across the region. Compared to the milder temperatures earlier in the year, December’s climate offers a stark reminder of winter's grip. As we transition from November’s slightly warmer cold, December’s bitter chill invites a different kind of beauty, showcasing frost-covered scenery and the serene quiet of the season.
In December, Yilan, China experiences a notable decline in precipitation, measuring just 10 mm (0.4 in) over 2 days. This marks a significant drop from the heavier downpours of late summer and early fall, where rainfall frequently exceeded 100 mm. Following a peak in August with 162 mm (6.4 in), the precipitation gradually tapers in the months leading to winter, culminating in December's relatively dry conditions. This pattern indicates a seasonal shift, transitioning from the humid summer months to the cooler, drier winter, making December one of the least rainy months of the year in Yilan. The contrast in rainfall not only reflects the region's diverse climate but also sets a tranquil backdrop for the holiday season.
In Yilan, China, December brings a notable shift in humidity levels, settling at 72%, which is a moderate decrease from the wetter months of late summer and early autumn, where humidity peaks at 89% in August. As the year winds down, the humid conditions gradually ease, moving from 81% in June to a steady decline through November. This trend reflects a transition from the heavy, moisture-laden air of summer to a cooler, more comfortable winter climate. However, December's humidity remains notably higher than the drier spring months, emphasizing Yilan's characteristic lushness even as the temperature cools. This balance between dampness and seasonal change creates a unique, inviting atmosphere for both residents and visitors alike.
As the year winds down, December in Yilan, China, maintains a low UV Index of 2, similar to January and November, suggesting that sun protection is not a pressing concern this time of year. With a burn time of 45 minutes, residents and visitors can comfortably enjoy outdoor activities without the immediate risk of sunburn. This consistency in low UV levels contrasts sharply with the peak summer months of May through July, when the UV Index soared to 8 and 9, demanding much shorter exposure times for safety. Overall, Yilan's UV trends highlight a seasonal shift, encouraging a relaxed yet mindful approach to sun exposure during December. For more detailed insights, visit Yilan UV Index.
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In Yilan, China, December brings a mild and cheerful transition into winter, with the month enjoying approximately 221 hours of sunshine. This marks a gentle decline from the sun-soaked summer peak of 327 hours in July, but showcases a notable resilience when compared to the oft-cloudy winter months ahead. As the year winds down, the trend shows that sunshine hours gradually decrease from May's 311 hours through November's 212 hours. Despite this downward trajectory, December still boasts more daylight than January's 184 hours, suggesting that even as the season shifts, Yilan retains a warm glimmer of sunshine to brighten the shorter days.
In December, Yilan, China, enjoys a notable likelihood of sunny weather, with a 60% chance of sunshine illuminating the landscape. This trend reflects a slight uptick compared to the preceding months, particularly November, which saw only a 36% chance of clear skies. As the year winds down, sunshine returns to Yilan, creating a refreshing contrast to the typically cloudier and rainier summer months, especially from July (just 25%) to September (only 38%). Overall, December stands out as a promising month for sun seekers, signaling a welcoming close to the year amidst the beauty of Yilan's scenery.
In Yilan, China, the daylight duration undergoes a notable transformation throughout the year. Starting with 9 hours in January, the days gradually lengthen, reaching a peak of 15 hours in both June and July, inviting an abundance of summer activities and sunshine. As the seasons shift, daylight begins to dwindle, dropping to 14 hours in August and then further to 12 hours in September. This gradual descent continues, with December bringing the shortest days of the year at just 8 hours. This cyclical pattern not only highlights the influence of seasonal changes but also sets the stage for the cozy ambiance of winter, reminding us of the enchanting rhythms of nature in Yilan.
As December sweeps into Yilan, China, the average wind speed picks up to 3.3 m/s (7 mph), marking a crisp conclusion to the year. This uptick in wind velocity is part of a broader trend observed in the late months, where wind speeds consistently hover around 3.0 to 3.2 m/s from November to February, creating a refreshing chill that enhances the region's enchanting winter scenery. Compared to the more subdued summer months, where winds barely reached 1.7 m/s in July, December's breezy allure invites residents and visitors alike to embrace the outdoor charm of Yilan. The transition from the warmer, calmer winds of mid-year to the invigorating gusts of winter highlights the dynamic climate of this beautiful coastal area.
Weather in Yilan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Yilan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of December and January, January tends to be significantly colder, with a minimum temperature plunging to -37°C (-35°F) compared to December's minimum of -29°C (-20°F). The average temperature also drops, from -15°C (5°F) in December to -17°C (1°F) in January, while the maximum temperature barely reaches -2°C (29°F) in January, a stark contrast to December's milder maximum of 7°C (45°F). Precipitation decreases slightly in January to 5 mm (0.2 in) over just one day, compared to 10 mm (0.4 in) across two days in December. Additionally, January experiences higher humidity at 84%, in comparison to December’s 72%. For more details, you can check out Yilan weather in January.
December and February both feature frigid temperatures, but February is generally colder. In December, temperatures range from a minimum of -29°C (-20°F) to an average of -15°C (5°F), peaking at 7°C (45°F). February experiences even lower minimums, dipping to -32°C (-25°F) and averaging -13°C (8°F), with a maximum of 6°C (43°F). Precipitation levels are slightly lower in February, with only 8 mm (0.3 in) compared to December’s 10 mm (0.4 in), and both months see about two days of precipitation. Notably, February has a higher humidity of 81%, compared to December's 72%, which may make the cold feel more intense. For more details, you can check Yilan weather in February.
In December, the weather is harsh, with average temperatures hovering around -15°C (5°F) and dipping as low as -29°C (-20°F), while occasional peaks can reach up to 7°C (45°F). Precipitation is minimal, totaling just 10 mm (0.4 in) over 2 days, with humidity at 72%. In contrast, March sees a significant warming trend, with an average temperature of -3°C (28°F) and daytime highs reaching 18°C (64°F). Precipitation increases to 22 mm (0.9 in), falling over 4 days, and humidity rises slightly to 75%. For a more detailed look at weather conditions in March, check Yilan weather in March.
December's climate is characterized by its frigid temperatures, with minimums plunging to -29°C (-20°F) and an average of -15°C (5°F), creating a stark, wintry atmosphere. In contrast, April brings a significant warming trend, where temperatures rise with a minimum of -9°C (16°F) and an average of 7°C (45°F), culminating in maximums that can reach as high as 25°C (78°F). Additionally, while December only sees about 10 mm (0.4 in) of precipitation over just 2 days, April experiences a more frequent rain pattern with 34 mm (1.4 in) of precipitation spread over 7 days. Despite the increased rainfall, April's humidity remains slightly lower at 67% compared to December's 72%. For a more detailed look at April's weather in Yilan, you can check out Yilan weather in April.
December in Yilan is characterized by frigid temperatures, with a minimum of -29°C (-20°F) and an average low of -15°C (5°F). The maximum temperature hovers around a chilly 7°C (45°F), accompanied by low precipitation of only 10 mm (0.4 in) over just two days. The humidity level is relatively high at 72%, adding to the cold's biting effect.
In stark contrast, May brings a dramatic transformation, seeing temperatures ranging from a minimum of 0°C (33°F) to a balmy maximum of 31°C (89°F), with an average temperature of 14°C (58°F). This month experiences significantly more rainfall, totaling 78 mm (3.1 in) across 12 days, and slightly lower humidity at 69%. To explore more about the weather in May, you can visit Yilan weather in May.
December and June present vastly different weather conditions. In December, temperatures can plunge to a chilling minimum of -29°C (-20°F), with an average around -15°C (5°F) and a maximum of just 7°C (45°F). The month experiences minimal precipitation, totaling only 10 mm (0.4 in) over just 2 days, accompanied by a humidity level of 72%. In contrast, June offers a much milder climate, with temperatures ranging from a minimum of 7°C (45°F) to an average of 19°C (66°F) and a peak of 33°C (91°F). The month sees significantly more rainfall, accumulating 103 mm (4.1 in) over 15 days, while the humidity increases to 81%. This stark contrast highlights the dramatic seasonal shifts in weather in the region. For more details, check out Yilan weather in June.
December and July present starkly contrasting weather conditions. In December, temperatures plummet to a minimum of -29°C (-20°F), with an average of -15°C (5°F) and a maximum of only 7°C (45°F). This month sees scant precipitation at just 10 mm (0.4 in) over two days, coupled with a humidity level of 72%. In stark contrast, July boasts much milder temperatures, with a minimum of 13°C (55°F) and an average high of 24°C (75°F), reaching up to 35°C (96°F). Additionally, it experiences significantly more rainfall, totaling 87 mm (3.4 in) across 13 days and higher humidity at 87%. For a more detailed look at the weather during this summer month, check out Yilan weather in July.
December and August present starkly contrasting weather conditions. In December, temperatures plummet to a minimum of -29°C (-20°F), with an average around -15°C (5°F) and a maximum reaching only 7°C (45°F). The month sees minimal precipitation at just 10 mm (0.4 in), occurring on only 2 days, and the humidity averages 72%. In contrast, August experiences a warm and humid climate, with temperatures ranging from a minimum of 8°C (46°F) to a blazing maximum of 32°C (89°F) and an average of 21°C (69°F). Precipitation is significantly higher at 162 mm (6.4 in), spread over 14 days, and humidity levels rise to 89%. For more details on August weather, visit Yilan weather in August.
The weather in December is characterized by extreme cold, with temperatures ranging from a frigid minimum of -29°C (-20°F) to a maximum of 7°C (45°F) and an average of -15°C (5°F). In contrast, September offers a much milder climate, with temperatures spanning from a cool 1°C (34°F) at night to a warm 28°C (83°F) during the day, averaging around 15°C (59°F). Additionally, December experiences minimal precipitation, with only 10 mm (0.4 in) over just 2 days, while September sees significantly more rain, accumulating 92 mm (3.6 in) over 10 days. Humidity levels are also higher in September at 87%, compared to December's 72%. For more details on September weather, visit Yilan weather in September.
In comparing the weather between December and October, December presents a stark contrast with significantly lower temperatures, averaging around -15°C (5°F), compared to the milder average of 6°C (44°F) in October. While October experiences maximum highs of 28°C (83°F), December's highs struggle to reach 7°C (45°F). Additionally, October has a higher level of precipitation, recorded at 22 mm (0.9 in) over 5 days, while December sees much less at 10 mm (0.4 in) over just 2 days. The humidity remains relatively high in both months, with October slightly higher at 83% compared to December's 72%. This departure in weather makes October a much more temperate month compared to the frigid conditions of December. For more details, explore Yilan weather in October.
In December, the weather takes a notably colder turn compared to November. The minimum temperature in December plunges to -29°C (-20°F), while November's lowest was a milder -21°C (-5°F), contrasting with an average temperature of -4°C (25°F) in November. December averages a chilly -15°C (5°F), significantly lower than November’s average of -4°C. Additionally, December sees a maximum temperature of only 7°C (45°F), compared to November's higher peak of 13°C (56°F). Precipitation also differs between the two months; December only experiences 10 mm (0.4 in) over 2 days, while November has more rainfall at 31 mm (1.2 in) over 5 days. Humidity levels are slightly higher in December at 72%, compared to November's 67%. For a detailed look at November’s climate, you can check Yilan weather in November.
As December rolls in, Yilan experiences a stark transformation in weather characterized by bitterly cold temperatures that stand in sharp contrast to the milder months of autumn. The winter chill sets in, with days consistently reaching below freezing, making this the coldest month of the year. While precipitation remains low, with just a couple of rainy days, the high humidity adds to the overall brisk atmosphere. This combination of cold and moisture creates a unique winter setting in Yilan that is a beautiful but frosty blend of winter delights. To learn more about Yilan's weather patterns throughout the year, check out Yilan Climate.