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Weather in Ulsan for January 2026

Your guide to Ulsan weather in January - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Ulsan during January is quite rare, with fewer than 2 snowy days on average.
    According to Ulsan snow forecast for January 2026, 1 snowy day is expected in the next 2 weeks at Tuesday, 20 January.

    • Temperatures

  • Until now, January 2026 in Ulsan has been nearly identical to the historical average, with a temperature of 4.1 °C (showing only a slight deviation of 0 °C).

  • The forecast for the upcoming days in Ulsan predicts a temperature of 5.5 °C, which is slightly above the historical average.

  • In general, the average temperature in Ulsan at the beginning of January is 5 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 4 °C by the end of January.

    • Rain 🌧️

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

Average dry days
30
Dry days
Average rainy days
1
Rainy days
Average snowy days
0
Snow days
Average temperatures
5°/-2°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
55 %
Avg humidity

Ulsan Weather January

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

Temperatures trend during January in Ulsan

See the weather trend as well as the moving average line

January weather in Ulsan day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
1 Jan. Sunny
Sunny
 4° /-4° 0 mm 0 cm
2 Jan. Sunny
Sunny
 4° /-4° 0 mm 0 cm
3 Jan. Sunny
Sunny
 3° /-4° 0 mm 0 cm
4 Jan. Sunny
Sunny
 6° /-2° 0 mm 0 cm
5 Jan. Patchy rain possible
Patchy rain possible
 6° /-2° 0.2 mm 0 cm
6 Jan. Cloudy
Cloudy
 7° /-2° 0 mm 0 cm
7 Jan. Partly cloudy
Partly cloudy
 5° /-2° 0 mm 0 cm
8 Jan. Patchy rain possible
Patchy rain possible
 3° /-4° 0.1 mm 0 cm
9 Jan. Overcast
Overcast
 3° /-6° 0 mm 0 cm
10 Jan. Sunny
Sunny
 4° /-6° 0 mm 0 cm
11 Jan. Partly cloudy
Partly cloudy
 1° /-6° 0 mm 0 cm
12 Jan. Partly cloudy
Partly cloudy
 3° /-5° 0 mm 0 cm
13 Jan. Sunny
Sunny
 4° /-3° 0 mm 0 cm
14 Jan. Sunny
Sunny
 7° /-4° 0 mm 0 cm
15 Jan. Partly cloudy
Partly cloudy
 14° /1° 0 mm 0 cm
16 Jan. Sunny
Sunny
 13° /2° 0 mm 0 cm
17 Jan. Sunny
Sunny
 11° /3° 0 mm 0 cm
18 Jan. Sunny
Sunny
 11° /3° 0 mm 0 cm
19 Jan. Patchy rain possible
Patchy rain possible
 7° /0° 0.9 mm 0 cm
20 Jan. Light freezing rain
Light freezing rain
 2° /-4° 0.2 mm 0.1 cm
21 Jan. Sunny
Sunny
 -2° /-7° 0 mm 0 cm
22 Jan. Sunny
Sunny
 1° /-7° 0 mm 0 cm
23 Jan. Partly cloudy
Partly cloudy
 1° /-6° 0 mm 0 cm
24 Jan. Sunny
Sunny
 -1° /-6° 0 mm 0 cm
25 Jan. Sunny
Sunny
 2° /-6° 0 mm 0 cm
26 Jan. Partly cloudy
Partly cloudy
 6° /-2° 0 mm 0 cm
27 Jan. Partly cloudy
Partly cloudy
 5° /-1° 0 mm 0 cm
28 Jan. Overcast
Overcast
 2° /-2° 0 mm 0 cm
29 Jan. Sunny
Sunny
 2° /-3° 0 mm 0 cm
30 Jan. Cloudy
Cloudy
 5° /-4° 0 mm 0 cm
31 Jan. Overcast
Overcast
 6° /-3° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Ulsan in January 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 January - FAQ

What are the expected maximum and minimum temperatures in Ulsan during January?

Brace for cold days with temperatures not exceeding 5° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Ulsan during January?

Rainfall in Ulsan during January is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.

Will it snow in Ulsan in January 2026?

Ulsan typically sees 0 cm of snowfall during January.

What are the typical wind conditions in Ulsan during January?

The average wind speed in Ulsan during January is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

Ulsan snow forecast January 2026

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

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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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