Ulsan Weather in October
October in Ulsan brings high temperatures, with daytime highs of 22°C (72°F) and nights around 13°C (55°F). Quite a bit of rainfall is expected, around 77 mm (3 in), so pack an umbrella.
Rainfall in Ulsan in October
Looking at the last 30 years, the data shows about 7 days with rain, averaging 77 mm (3 in) for the month. The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.
Temperature in Ulsan in October
Ulsan in October has perfect weather. Days reach 22°C (72°F) and nights cool to 13°C (55°F). Overall, the month follows a fairly predictable daily temperature pattern. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Ulsan in October
Expect a lot of sunshine this month, with about 195 hours of sun. These sunny conditions add to the overall experience.If you're inclined towards comfortable temperatures and drier conditions, October is a good time to visit Ulsan.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Ulsan's climate page.
Ulsan Temperature in October
Min Temperature
13°C (55°F)
Max Temperature
22°C (72°F)
Chance of Rain
22%
Precipitation
77 mm (3 in)
Rainy days
7 days
Humidity
66%
Sunshine
195 hours
Percentage Sunshine
56%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Ulsan typically drop from around 24°C (75°F) at the start of October to approximately 20°C (68°F) by the end. Nights are cool, with lows typically ranging from 8°C (46°F) to 15°C (59°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Ulsan in October
Browse day-by-day weather records for Ulsan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ulsan historical weather extremes in October
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Ulsan.
- Ulsan recorded its highest October temperature of 30°C (86°F) on October 5, 2021.
- The coldest October day was on October 31, 1997, with a maximum of 10°C (50°F).
- The lowest overnight temperature recorded in October was 0°C (32°F) (October 31, 1986).
Best Places in South Korea in October
Find out more about the weather in South Korea and which places have the best travel conditions in this month. See all of South Korea in October →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Ulsan in October
Comfortable temperatures call for an easy wardrobe in October. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Ulsan in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Ulsan's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ulsan climate overview or explore weather in South Korea.
