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Weather in Jeju-si for December 2025

Your guide to Jeju-si weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Jeju-si usually enjoys a light touch of snow in December.
    According to Jeju-si snow forecast for December 2025, no snow is expected in the next 2 weeks.

    • Temperatures

  • Until now, December 2025 in Jeju-si has been nearly identical to the historical average, with a temperature of 11.5 °C (showing only a slight deviation of -0.5 °C).

  • The forecast for the next days in Jeju-si predicts temperatures to be around 12 °C, close to the historical average.

  • In general, the average temperature in Jeju-si at the beginning of December is 11.3 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 8.6 °C by the end of December.

    • Rain 🌧️

  • Jeju-si in December brings notable rainfall, with an average of 16 rainy days and a total precipitation of 50.9 mm.

Average dry days
12
Dry days
Average rainy days
16
Rainy days
Average snowy days
3
Snow days
Average temperatures
9°/5°
Temperatures
Average wind speed
26 km/h
Avg max wind
Average humidity
68 %
Avg humidity

Jeju-si Weather December

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
10°
2
Patchy rain possible
11°
3
Patchy rain possible
10°
4
Patchy rain possible
11°
5
Sunny
11°
6
Patchy rain possible
13°
7
Cloudy
13°
8
Sunny
12°
9
Overcast
13°
10
Patchy rain possible
14°
11
Patchy rain possible
13°
12
Overcast
11°
13
Moderate rain
14°
14
Patchy rain possible
8°
15
Sunny
10°
16
Patchy rain possible
14°
17
Moderate rain
13°
18
Sunny
11°
19
Partly cloudy
16°
20
Sunny
15°
21
Patchy rain possible
17°
22
Moderate rain
14°
23
Partly cloudy
11°
24
Sunny
10°
25
Partly cloudy
8°
26
Patchy rain possible
7°
27
Patchy rain possible
9°
28
Patchy rain possible
9°
29
Patchy rain possible
10°
30
Patchy rain possible
9°
31
Patchy rain possible
8°

Temperatures trend during December in Jeju-si

See the weather trend as well as the moving average line

December weather in Jeju-si day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Patchy rain possible
Patchy rain possible
 10° /6° 1.4 mm 3
2 Dec. Patchy rain possible
Patchy rain possible
 11° /6° 0.1 mm 3
3 Dec. Patchy rain possible
Patchy rain possible
 10° /6° 0.9 mm 3
4 Dec. Patchy rain possible
Patchy rain possible
 11° /6° 0.9 mm 3
5 Dec. Sunny
Sunny
 11° /6° 0.2 mm 3
6 Dec. Patchy rain possible
Patchy rain possible
 13° /7° 0.1 mm 4
7 Dec. Cloudy
Cloudy
 13° /8° 0.5 mm 4
8 Dec. Sunny
Sunny
 12° /7° 0.4 mm 4
9 Dec. Overcast
Overcast
 13° /8° 0 mm 3
10 Dec. Patchy rain possible
Patchy rain possible
 14° /8° 1 mm 4
11 Dec. Patchy rain possible
Patchy rain possible
 13° /8° 3.4 mm 3
12 Dec. Overcast
Overcast
 11° /7° 1.2 mm 3
13 Dec. Moderate rain
Moderate rain
 14° /8° 8.4 mm 0.5
14 Dec. Patchy rain possible
Patchy rain possible
 8° /7° 4.4 mm 0.2
15 Dec. Sunny
Sunny
 10° /6° 0 mm 0.5
16 Dec. Patchy rain possible
Patchy rain possible
 14° /7° 0.2 mm 0.5
17 Dec. Moderate rain
Moderate rain
 13° /8° 6.1 mm 0.1
18 Dec. Sunny
Sunny
 11° /6° 0 mm 3
19 Dec. Partly cloudy
Partly cloudy
 16° /10° 0 mm 4
20 Dec. Sunny
Sunny
 15° /12° 0 mm 4
21 Dec. Patchy rain possible
Patchy rain possible
 17° /13° 1.3 mm 3
22 Dec. Moderate rain
Moderate rain
 14° /13° 9.8 mm 3
23 Dec. Partly cloudy
Partly cloudy
 11° /9° 0.1 mm 4
24 Dec. Sunny
Sunny
 10° /8° 0 mm 3
25 Dec. Partly cloudy
Partly cloudy
 8° /7° 0 mm 3
26 Dec. Patchy rain possible
Patchy rain possible
 7° /6° 0.1 mm 2
27 Dec. Patchy rain possible
Patchy rain possible
 9° /4° 5.3 mm 3
28 Dec. Patchy rain possible
Patchy rain possible
 9° /5° 0.6 mm 2
29 Dec. Patchy rain possible
Patchy rain possible
 10° /4° 1.1 mm 2
30 Dec. Patchy rain possible
Patchy rain possible
 9° /3° 1.2 mm 2
31 Dec. Patchy rain possible
Patchy rain possible
 8° /3° 0.8 mm 2
Next
Important Notice
Our weather forecast for Jeju-si in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Jeju-si forecast closer to your planned date for the most up-to-date weather information.
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Jeju-si in December - FAQ

What are the expected maximum and minimum temperatures in Jeju-si during December?
During December, expect a variety of temperatures with highs around 9° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Jeju-si during December?
Moderate rainfall is anticipated in Jeju-si during December, with a total of 50.9 mm spread over approximately 16 days. Considering plans for rainy days is advisable.
Will it snow in Jeju-si in December 2025?
Jeju-si experiences an average snowfall of 0.728 cm during December, occurring over 3 days.
What are the typical wind conditions in Jeju-si during December?
The average wind speed in Jeju-si during December is 26 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Jeju-si

Explore the daily rainfall trends and prepare for Jeju-sis December weather 💧
Typically, Jeju-si has 16 rainy days in December with a total of 50.9 mm of rainfall.
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Location coordinates Where is Jeju-si?

Get accurate weather forecasts for Jeju-si, located at latitude 33.51 and longitude 126.522. Stay updated with localized weather information tailored for Jeju-si.

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