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Weather in Ulsan for October 2026

Your guide to Ulsan weather in October - trends and predictions

    Official Weather Alert ⚠️

  • Wind Wave Advisory - See hour by hour.

    • Temperatures

  • So far, October 2026 in Ulsan is slightly warmer than the historical average by 1 °C.

  • The forecast for the next days in Ulsan predicts temperatures to be around 18 °C, close to the historical average.

  • In general, the average temperature in Ulsan at the beginning of October is 21.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.6 °C by the end of October.

    • Rain 🌧️

  • The climate of Ulsan in October is notably wet, with an average of 13 rainy days, and a total of 183.2 mm of precipitation.

    • More

  • Is October a good time to visit Ulsan? check out the best time to travel to Ulsan page.

Average dry days
18
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/13°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Ulsan Weather October

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

Temperatures trend during October in Ulsan

See the weather trend as well as the moving average line

October weather in Ulsan day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
1 Oct. Cloudy
Cloudy
 26° /15° 0.2 mm 6
2 Oct. Cloudy
Cloudy
 22° /14° 0 mm 5
3 Oct. Heavy rain at times
Heavy rain at times
 20° /14° 15.3 mm 4
4 Oct. Light rain
Light rain
 21° /15° 3.2 mm 4
5 Oct. Partly cloudy
Partly cloudy
 23° /15° 0.3 mm 5
6 Oct. Light rain
Light rain
 21° /15° 3.3 mm 5
7 Oct. Heavy rain at times
Heavy rain at times
 21° /14° 5.1 mm 5
8 Oct. Patchy rain possible
Patchy rain possible
 22° /14° 1.4 mm 5
9 Oct. Patchy rain possible
Patchy rain possible
 22° /14° 0.5 mm 5
10 Oct. Overcast
Overcast
 23° /14° 0.1 mm 5
11 Oct. Patchy rain possible
Patchy rain possible
 25° /15° 0.1 mm 5
12 Oct. Sunny
Sunny
 23° /16° 0.6 mm 5
13 Oct. Light rain
Light rain
 24° /15° 3.9 mm 4
14 Oct. Heavy rain at times
Heavy rain at times
 20° /14° 12.9 mm 4
15 Oct. Moderate rain
Moderate rain
 22° /14° 13.7 mm 5
16 Oct. Light rain
Light rain
 23° /15° 6 mm 4
17 Oct. Partly cloudy
Partly cloudy
 22° /15° 0.1 mm 4
18 Oct. Moderate rain
Moderate rain
 23° /16° 11.9 mm 4
19 Oct. Moderate rain
Moderate rain
 21° /15° 11.5 mm 3
20 Oct. Moderate rain
Moderate rain
 17° /13° 15.1 mm 3
21 Oct. Moderate rain
Moderate rain
 19° /13° 13.2 mm 3
22 Oct. Heavy rain
Heavy rain
 17° /11° 34.5 mm 4
23 Oct. Light rain
Light rain
 20° /11° 5.4 mm 3
24 Oct. Heavy rain
Heavy rain
 18° /12° 25.3 mm 3
25 Oct. Patchy rain possible
Patchy rain possible
 19° /13° 1.4 mm 4.6
26 Oct. Heavy rain
Heavy rain
 21° /14° 25.2 mm 2.9
27 Oct. Sunny
Sunny
 17° /4° 0 mm 4.9
28 Oct. Sunny
Sunny
 15° /1° 0 mm 4.7
29 Oct. Patchy rain possible
Patchy rain possible
 17° /3° 2.2 mm 4.3
30 Oct. Light rain
Light rain
 20° /10° 3 mm 3.4
31 Oct. Sunny
Sunny
 16° /8° 0 mm 5
Next
Important Notice
Our weather forecast for Ulsan in October 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 October - FAQ

What are the expected maximum and minimum temperatures in Ulsan during October?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Ulsan during October?
Significant rainfall exceeding 183.2 mm is expected in Ulsan during October, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Ulsan during October?
The average wind speed in Ulsan during October is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Ulsan

Explore the daily rainfall trends and prepare for Ulsans October weather 💧
Typically, Ulsan has 13 rainy days in October with a total of 183.2 mm of rainfall.

UV exposure in Ulsan during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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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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