December Weather in Suwon, South Korea

Last updated: October 30, 2025

December in Suwon, South Korea is characterized by a crisp and chilly climate, with maximum temperatures reaching around 13°C (56°F), while the average dips to 0°C (33°F). A notable minimum of -14°C (8°F) can occur, inviting the charm of winter's embrace. The month sees 26 mm (1.0 in) of precipitation spread over 5 days, contributing to the 74% humidity that lingers in the air. As the days grow colder, the festive spirit begins to spark, making December a unique time to experience Suwon’s seasonal beauty.

December Temperature in Suwon

In Suwon, South Korea, December heralds the onset of winter, with temperatures dipping significantly as the year draws to a close. The month brings a chilly minimum of -14°C (8°F), while the average temperature hovers around 0°C (33°F), and highs reach up to 13°C (56°F). This reflects a stark transition from the milder autumn months, where November's temperatures range from -5°C (23°F) to 21°C (70°F). As the landscape becomes blanketed in frost, December not only marks a cooler climate but also sets the stage for festive winter activities, inviting residents and visitors alike to embrace the season's serene beauty.

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

The chart illustrates December temperature patterns in Suwon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Suwon, December typically has an average temperature of 0°C (33°F), with highs reaching up to 13°C (56°F) and lows dropping to around -14°C (8°F).
JanFebMarAprMayJunJulAugSepOctNovDec293244546472798071594632
Data source: Temperature data for Suwon 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 Suwon

In Suwon, South Korea, December tends to mark a subtle shift in precipitation patterns as the year draws to a close. With an average of 26 mm (or 1.0 in) of rainfall over 5 days, this month witnesses a noticeable decrease from the heavier downpours experienced in the summer months, particularly July and August, which can see over 250 mm. December’s precipitation is modest compared to the 98 mm in May and the 80 mm in June, signaling the transition into the drier winter season. As the chill sets in, this lighter rainfall contributes to the crisp and often clear skies typical of the month, making December a refreshing contrast to the wetter months preceding it.

December Precipitation Trends in Suwon

The chart displays monthly precipitation patterns in Suwon, 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 Suwon, December typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec212347549880235256136625426
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Suwon

In December, Suwon, South Korea, experiences a humidity level of 74%, which marks a slight decline as the year comes to a close. This drop comes after a spike in humidity throughout the summer months, peaking at 91% in both July and August. As the seasons transition, December's humidity maintains a comfortable range, remaining higher than the early months of the year, with January and February averaging around 71% and 65%, respectively. This trend suggests a seasonal rhythm, where humidity is generally elevated during the warmer months and gradually decreases as winter approaches, while still showcasing Suwon's characteristic moisture throughout the year.

December Average Humidity in Suwon

This chart illustrates the average monthly humidity levels in Suwon, 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 Suwon is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%65%65%75%81%85%91%91%77%79%80%74%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Suwon

As December rolls in, Suwon, South Korea, experiences a drop in the UV Index, settling at 3, which falls into the moderate exposure category. This signifies a return to safer sun conditions after the high and extreme levels faced in the summer months, where UV readings peaked at 11 in July and August. In December, the recommended burn time stretches back to 30 minutes, aligning with the previous months of January and November. This seasonal trend highlights the importance of adjusting sun safety measures according to varying UV levels throughout the year. For a detailed understanding of how UV levels fluctuate, check the Suwon UV Index.

Maximum UV Index Levels in Suwon for December

The chart shows the monthly maximum UV Index (UVI) for Suwon 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 Suwon typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891011119643
Data source: Suwon 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 Suwon

In December, Suwon, South Korea, enjoys 235 hours of sunshine, a slight dip compared to the vibrant spring and summer months. As the year progresses, we observe a clear trend: the sun begins to shine more brightly from January's 198 hours, gradually peaking in May with an impressive 315 hours. This upward trajectory continues into June before tapering off, with the sun giving way to cooler, cloudier days by November's 231 hours. December's sunshine is a cozy reminder of the warmth that once was, as the city prepares for winter while still basking in a modest glow. The overall pattern illustrates a typical seasonal rhythm, where sunlight waxes and wanes, bringing each month its unique charm.

Monthly Sunshine Duration in Suwon: December Highlighted

The December sunshine duration represents the total number of hours Suwon 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.
JanFebMarAprMayJunJulAugSepOctNovDec198h242h283h289h315h318h293h290h261h266h231h235h
Data source: Suwon December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Suwon During December

In Suwon, South Korea, the likelihood of sunny weather sees a notable increase as December approaches, with a 63% chance of sunshine, the highest of the winter months. This upward trend is particularly striking when compared to the earlier months, where the chances fluctuate between 30% and 57%. As the year draws to a close, December not only brings cooler temperatures but also enhances opportunities for clear, sunny days amidst the brisk air. This makes it an ideal time for outdoor activities and enjoying the picturesque winter scenery, highlighting a seasonal shift that many residents and visitors eagerly anticipate.

Percentage of Sunny Days in December in Suwon

The chart illustrates the percentage of sunny days in Suwon 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 Suwon experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec49%53%43%43%39%40%30%31%39%47%57%63%
Data source: Suwon December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Suwon in December

As the year draws to a close in December, Suwon, South Korea experiences a return to shorter days, with daylight lasting only 9 hours. This decrease in sunlight is a continuation of the gradual decline that begins in September, peaking in the vibrant days of May and June, where the city enjoys up to 14 hours of daylight. Following this peak, daylight hours steadily taper off, highlighting the natural ebb and flow of the seasons. While December may bring longer nights, it also invites cozy evenings and festive celebrations, reminding us of the unique charm that each month in Suwon offers.

Average Daylight Hours in Suwon for December

The chart illustrates the variation in daylight duration in Suwon throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 53m10h 48m11h 57m13h 9m14h 9m14h 40m14h 24m13h 32m12h 23m11h 12m10h 9m9h 37m
Data source: Suwon daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Suwon

As December descends upon Suwon, South Korea, the winds begin to gust gently at an average speed of 2.9 m/s (7 mph). This marks a slight uptick from the calm of the preceding months, where wind speeds dwindled to their lowest points during the height of summer. The transition into winter brings a refreshing briskness, reminiscent of the earlier months of the year. Interestingly, December's winds mirror those of the late autumn months, suggesting a pattern where cooler temperatures coincide with a subtle increase in wind activity. As the year draws to a close, the December winds offer a reminder of the changing seasons and nature's rhythmic ebb and flow in Suwon.

Average December Wind Speed in Suwon

The chart displays monthly wind speed patterns in Suwon, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.42.72.92.92.22.02.32.72.42.72.9 m/s
Data source: Suwon December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Suwon Compares to Other Months

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

In December, the weather sees a wider range of temperatures, with a minimum of -14°C (8°F) and an average of 0°C (33°F), peaking at a maximum of 13°C (56°F). This month experiences about 26 mm (1.0 in) of precipitation over approximately 5 days, with a humidity level of 74%. In contrast, January tends to be colder with lower minimum temperatures, reaching -17°C (2°F) and an average of -2°C (29°F), while still peaking at the same maximum of 13°C (55°F). Precipitation decreases to 21 mm (0.8 in) over just 2 days, accompanied by a slightly lower humidity of 71%. For more detailed insights into January's weather, you can check out Suwon weather in January.

December and February in Suwon feature similar average temperatures, both hovering around 0°C (33°F). However, December experiences slightly milder conditions, with maximum temperatures reaching up to 13°C (56°F), while February can peak at 18°C (65°F). Precipitation levels are relatively close, with December receiving 26 mm (1.0 in) over 5 days and February totaling 23 mm (0.9 in) across just 4 days. Notably, February has lower humidity at 65%, compared to December’s 74%, creating a drier feel as winter gradually transitions into early spring. For more insights on what February holds for Suwon, check out Suwon weather in February.

December and March present contrasting weather patterns. In December, temperatures can drop as low as -14°C (8°F), with an average of 0°C (33°F) and a maximum of 13°C (56°F). The month experiences about 26 mm (1.0 in) of precipitation over 5 days, coupled with a humidity level of 74%. In contrast, March offers a milder climate with temperatures ranging from a minimum of -6°C (21°F) to an average of 7°C (44°F) and a maximum of 21°C (70°F). This month sees a higher precipitation of 47 mm (1.9 in) spread across 5 days, but with lower humidity at 65%. For more information on specific weather conditions during March, you can check Suwon weather in March.

When comparing December and April weather, notable differences emerge. December experiences frigid temperatures with a minimum of -14°C (8°F) and an average around 0°C (33°F), while April witnesses a significant warming trend, where temperatures range from a minimum of -1°C (30°F) to a comfortable maximum of 28°C (82°F). Precipitation in December is relatively low at 26 mm (1.0 in) over five days, contrasting with April's increased rainfall of 54 mm (2.1 in), also spread over five days. Despite the change in temperature and precipitation, humidity levels remain fairly constant, with December at 74% and April slightly higher at 75%. For more detailed insights, you can visit Suwon weather in April.

In December, the weather in Suwon is characterized by significantly colder temperatures, with a minimum of -14°C (8°F) and an average around 0°C (33°F). This month experiences relatively low precipitation at 26 mm (1.0 in) across about 5 days, and the humidity sits at 74%. In contrast, May brings much warmer and more pleasant conditions, with temperatures ranging from a minimum of 6°C (42°F) to an average of 18°C (64°F), peaking at a maximum of 31°C (89°F). Precipitation increases in May to 98 mm (3.9 in), spread over approximately 8 days, and humidity rises slightly to 81%. For a detailed look at May weather, you can check Suwon weather in May.

December and June present stark contrasts in weather. In December, temperatures can dip as low as -14°C (8°F), with an average of around 0°C (33°F) and highs reaching up to 13°C (56°F). The month is characterized by relatively low precipitation of 26 mm (1.0 in) over about 5 days and humidity levels at 74%. In comparison, June is much warmer, with minimum temperatures around 12°C (53°F), average temperatures soaring to 22°C (72°F), and maximums hitting 33°C (91°F). This month also sees higher precipitation at 80 mm (3.1 in) spread over 7 days, accompanied by increased humidity at 85%. For more detailed insights into the weather patterns, you can visit Suwon weather in June.

In December, Suwon experiences significantly colder weather, with temperatures ranging from a minimum of -14°C (8°F) to a maximum of 13°C (56°F) and an average temperature of 0°C (33°F). The month sees about 26 mm (1.0 in) of precipitation over approximately five days, with humidity levels around 74%. In contrast, July brings much warmer conditions, with temperatures ranging from a minimum of 18°C (65°F) to a high of 36°C (98°F), averaging 26°C (79°F). July is also much wetter, receiving 235 mm (9.3 in) of precipitation over 14 days, coupled with high humidity at 91%. For more details on the weather in July, check out Suwon weather in July.

December and August present stark contrasts in weather. December experiences much colder temperatures, with a minimum of -14°C (8°F) and an average around 0°C (33°F), reaching a maximum of 13°C (56°F). In contrast, August boasts a warm climate, with temperatures ranging from a minimum of 16°C (61°F) to an average of 27°C (80°F), peaking at an impressive 38°C (101°F). Precipitation also varies significantly; December sees only 26 mm (1.0 in) over about 5 days, while August is much wetter, with 255 mm (10.1 in) of rain falling over 14 days. Additionally, humidity levels are higher in August at 91%, compared to 74% in the colder month. For a closer look at August weather in Suwon, you can check Suwon weather in August.

December and September exhibit stark contrasts in weather conditions. December temperatures can plunge to a minimum of -14°C (8°F) and typically hover around an average of 0°C (33°F), with a maximum of 13°C (56°F). The month sees a modest amount of precipitation, totaling 26 mm (1.0 in) over about 5 days, coupled with a humidity level of 74%. In contrast, September enjoys much milder conditions, with temperatures ranging from a minimum of 9°C (48°F) to a warm average of 22°C (71°F) and reaching up to 31°C (88°F). It is also a wetter month, receiving 136 mm (5.4 in) of rain over 9 days and maintaining a slightly higher humidity level at 77%. For more details on the September weather in Suwon, you can check Suwon weather in September.

When comparing the weather in December and October, it’s clear that they exhibit significant differences. December’s temperatures range from a chilly minimum of -14°C (8°F) to a mild maximum of 13°C (56°F), with an average around 0°C (33°F). In contrast, October enjoys much warmer weather, with minimums around 1°C (33°F) and highs reaching up to 29°C (84°F) for an average of 15°C (59°F). Precipitation in October is notably higher at 62 mm (2.5 in) compared to December's 26 mm (1.0 in), although both months experience rainfall on about 5 days. Additionally, December's humidity sits at 74%, slightly lower than October's average of 79%. For a more detailed overview, you can check Suwon weather in October.

In comparing the weather between November and December, we see notable changes. December brings much colder temperatures, with a minimum of -14°C (8°F) and an average of 0°C (33°F), while November's milder conditions feature a minimum of -5°C (23°F) and an average of 8°C (46°F). Additionally, December experiences significantly less precipitation at 26 mm (1.0 in) compared to November's 54 mm (2.1 in), despite both months having about five days of rain. Humidity also decreases slightly from November's 80% to December's 74%, giving December a fresher feel. For more details on November's weather, check out Suwon weather in November.

Compare Suwon's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Suwon

As December wraps Suwon in its winter embrace, the weather shifts noticeably from the milder months that precede it. The cooler temperatures settle in, with days averaging a brisk 0°C and nights occasionally dropping to an icy -14°C. This stark change heralds a season where precipitation, though minimal, tends to occur sporadically over a handful of days, resulting in a crispness that fills the air. With humidity lingering at around 74%, the atmosphere holds onto the chill a bit longer, making December a month that truly signals the onset of winter. For a deeper understanding of how Suwon’s weather trends across the seasons, visit Suwon Climate.