Ulsan
January
Weather in Ulsan for January 2026
Your guide to Ulsan weather in January - trends and predictions
In general, the average temperature in Ulsan at the beginning of January is 5.7 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 4.6 °C by the end of January.
Precipitation in Ulsan during January is a rare event, with an average of fewer than 2 rainy days.
Temperatures
Rain 🌧️
30
Dry days
1
Rainy days
0
Snow days
5°/-2°
Temperatures
16 km/h
Avg max wind
55 %
Avg humidity
Ulsan Weather January
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Temperatures trend during January in Ulsan
See the weather trend as well as the moving average line
January weather in Ulsan day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jan. |  Sunny | 8° /-2° | 0 mm | 3 | |
| 2 Jan. | Sunny | 8° /0° | 0 mm | 3 | |
| 3 Jan. | Sunny | 2° /-3° | 0 mm | 2 | |
| 4 Jan. | Sunny | 5° /-3° | 0 mm | 3 | |
| 5 Jan. |  Patchy rain possible | 6° /-2° | 0.3 mm | 2 | |
| 6 Jan. |  Cloudy | 8° /-1° | 0 mm | 2 | |
| 7 Jan. |  Partly cloudy | 3° /-2° | 0 mm | 2 | |
| 8 Jan. | Patchy rain possible | 4° /-3° | 0.2 mm | 1 | |
| 9 Jan. |  Overcast | -1° /-9° | 0 mm | 1 | |
| 10 Jan. | Sunny | 0° /-10° | 0 mm | 2 | |
| 11 Jan. | Partly cloudy | 2° /-5° | 0 mm | 2 | |
| 12 Jan. | Partly cloudy | 2° /-4° | 0 mm | 2 | |
| 13 Jan. | Sunny | 4° /-3° | 0 mm | 2 | |
| 14 Jan. | Overcast | 9° /-2° | 0 mm | 2 | |
| 15 Jan. | Sunny | 0° /-4° | 0 mm | 2 | |
| 16 Jan. | Sunny | 4° /-4° | 0 mm | 2 | |
| 17 Jan. | Sunny | 5° /-3° | 0 mm | 3 | |
| 18 Jan. | Overcast | 9° /-2° | 0 mm | 2 | |
| 19 Jan. | Overcast | 9° /-2° | 0 mm | 2 | |
| 20 Jan. | Partly cloudy | 8° /-1° | 0 mm | 3 | |
| 21 Jan. | Partly cloudy | 10° /0° | 0 mm | 4 | |
| 22 Jan. | Overcast | 11° /-1° | 0 mm | 3 | |
| 23 Jan. | Sunny | 11° /1° | 0 mm | 4 | |
| 24 Jan. | Overcast | 9° /0° | 0 mm | 2 | |
| 25 Jan. | Patchy rain possible | 7° /2° | 0.8 mm | 2 | |
| 26 Jan. | Patchy rain possible | 6° /1° | 0.2 mm | 2 | |
| 27 Jan. |  Moderate or heavy rain shower | 4° /-1° | 7.5 mm | 1 | |
| 28 Jan. | Overcast | 2° /-2° | 0 mm | 1 | |
| 29 Jan. | Sunny | 2° /-3° | 0 mm | 2 | |
| 30 Jan. | Cloudy | 5° /-4° | 0 mm | 2 | |
| 31 Jan. | Overcast | 6° /-3° | 0 mm | 2 | |
| 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.
Change Month
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.
January rainfall patterns in Ulsan
Explore the daily rainfall trends and prepare for Ulsans January weather 💧
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