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Weather in Ulsan for December 2025

Your guide to Ulsan weather in December - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Ulsan during December is quite rare, with fewer than 2 snowy days on average.
    According to Ulsan snow forecast for December 2025, 1 snowy day is expected at the beginning of December at Wednesday, 3 December.

    • Temperatures

  • The forecast for the first days of December 2025 in Ulsan predicts a temperature of 9.4 °C, which is slightly above the historical average.

  • In general, the average temperature in Ulsan at the beginning of December is 8 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 5.7 °C by the end of December.

    • Rain 🌧️

  • Precipitation in Ulsan during December is a rare event, with an average of fewer than 2 rainy days.

Average dry days
31
Dry days
Average rainy days
0
Rainy days
Average snowy days
0
Snow days
Average temperatures
7°/-1°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
56 %
Avg humidity

Ulsan Weather December

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

Temperatures trend during December in Ulsan

See the weather trend as well as the moving average line

December weather in Ulsan day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Sunny
Sunny
 15° /6° 0 mm 0 cm
2 Dec. Partly cloudy
Partly cloudy
 5° /-2° 0.1 mm 0 cm
3 Dec. Light freezing rain
Light freezing rain
 1° /-5° 0.2 mm 0.1 cm
4 Dec. Sunny
Sunny
 6° /-4° 0 mm 0 cm
5 Dec. Overcast
Overcast
 9° /1° 0 mm 0 cm
6 Dec. Sunny
Sunny
 11° /4° 0 mm 0 cm
7 Dec. Sunny
Sunny
 9° /2° 0 mm 0 cm
8 Dec. Sunny
Sunny
 12° /2° 0 mm 0 cm
9 Dec. Sunny
Sunny
 13° /4° 0 mm 0 cm
10 Dec. Sunny
Sunny
 5° /-1° 0 mm 0 cm
11 Dec. Partly cloudy
Partly cloudy
 8° /-2° 0 mm 0 cm
12 Dec. Sunny
Sunny
 8° /0° 0.1 mm 0 cm
13 Dec. Overcast
Overcast
 7° /0° 0 mm 0 cm
14 Dec. Sunny
Sunny
 4° /0° 0 mm 0 cm
15 Dec. Patchy rain possible
Patchy rain possible
 5° /0° 0.3 mm 0 cm
16 Dec. Sunny
Sunny
 5° /-1° 0 mm 0 cm
17 Dec. Partly cloudy
Partly cloudy
 6° /-1° 0 mm 0 cm
18 Dec. Sunny
Sunny
 3° /-2° 0 mm 0 cm
19 Dec. Overcast
Overcast
 5° /-2° 0 mm 0 cm
20 Dec. Overcast
Overcast
 8° /-2° 0 mm 0 cm
21 Dec. Cloudy
Cloudy
 4° /-1° 0 mm 0 cm
22 Dec. Sunny
Sunny
 3° /-2° 0 mm 0 cm
23 Dec. Overcast
Overcast
 6° /-2° 0 mm 0 cm
24 Dec. Sunny
Sunny
 6° /-2° 0 mm 0 cm
25 Dec. Partly cloudy
Partly cloudy
 8° /-1° 0 mm 0 cm
26 Dec. Partly cloudy
Partly cloudy
 6° /-1° 0 mm 0 cm
27 Dec. Overcast
Overcast
 4° /-2° 0 mm 0 cm
28 Dec. Sunny
Sunny
 2° /-2° 0 mm 0 cm
29 Dec. Overcast
Overcast
 7° /-1° 0 mm 0 cm
30 Dec. Overcast
Overcast
 9° /-2° 0 mm 0 cm
31 Dec. Sunny
Sunny
 4° /0° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Ulsan 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 Ulsan forecast closer to your planned date for the most up-to-date weather information.
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Ulsan in December - FAQ

What are the expected maximum and minimum temperatures in Ulsan during December?
Prepare for cooler days with highs just around 7° and colder nights, dipping below -1°.
How much rainfall should be expected in Ulsan during December?
Rainfall in Ulsan during December is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
Will it snow in Ulsan in December 2025?
Ulsan typically sees 0 cm of snowfall during December.
What are the typical wind conditions in Ulsan during December?
The average wind speed in Ulsan during December is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

Ulsan snow forecast December 2025

Track daily snowfall levels and discover Ulsan’s snowy potential this December ❄️

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Location coordinates Where is Ulsan?

Get accurate weather forecasts for Ulsan, located at latitude 35.537 and longitude 129.317. Stay updated with localized weather information tailored for Ulsan.

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