Weather in Seoul in December 2024
Average weather
Average temperature in Seoul in December
Going from a maximum of +50°F during the day to a minimum of +7°F during the night, the temperature in December averages around +34°F.
The average maximum temperature goes up 21% by the end of the month, compared with the beginning of the month, from +28°F to +37°F.
Is Seoul warm or cold in December?
Seoul is typically chill in December.
Maximum temperatures go down compared to the previous month from +54°F to +39°F. The minimum temperature also goes down from +36°F to +23°F.
Pack a jumper and a jacket as there will be cooler temperatures.
December is one of the coolest months in Seoul, here is the comparison with other months:
Climate in Seoul in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +54°F | +39°F | +36°F | ||||
| Min. temperature | ||||||
| +12°F | 0°F | -9°F | ||||
| Max. temperature | ||||||
| +77°F | +63°F | +59°F | ||||
| Rainfall | ||||||
| 44 mm | 14 mm | 10 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 66% | 64% | 62% | ||||
| Air pressure | ||||||
| 1021 HPa | 1023 HPa | 1023 HPa | ||||
| Sunny days | ||||||
| 12 | 14 | 15 | ||||
| Cloudy days | ||||||
| 14 | 14 | 14 | ||||
| Rainy days | ||||||
| 4 | 2 | 1 | ||||
| Snowy days | ||||||
| 0 | 1 | 1 | ||||
December weather is still as good as in November. It’s getting colder in December. From +54°F in the day, the average maximum temperature lowers to +39°F. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 44 mm to 14 mm. It feels drier, as humidity decreases from 66% to 64%. The average wind speed doesn’t change much during December, staying around 1 m/s. The good news is there are likely to be more sunny days in December, from 12 to 14.
January brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Seoul is gradually increasing during December, going from 2 m/s to 2 m/s over the course of the month.
Rain
Snow
December is one of the snowiest months in Seoul.
Here’s how December is compared with other months in the amount of snow, total mm:
How was the weather last December in Seoul?
Climate Change Over the Years
The climate in Seoul in December has not changed that much over the last 43 years.
The average temperature was the lowest in 2012 (+32°F) and the highest in 1986 (+45°F). The driest year was 2014 with only 1 mm of rainfall, and the wettest year was 2005 with 0 mm.
FAQ
Is December a good time to visit Seoul?
Can you sunbathe in Seoul in December?
Is Seoul rainy in December?
Is it sunny in Seoul in December?
Monthly weather in Seoul
Source of the data
For this page, we’ve looked at the typical weather in Seoul, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.