Climate averages 1991–2020
Ulsan weather
in October.
A mild, moderately wet month: the 6th warmest and the 6th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Ulsan: daytime highs average 20.1°C and nights cool to about 13.5°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 73 mm of rain on roughly 5 days, which makes October a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 19 min on an average October day.
The nearest other city in this atlas is Ungsang (20 km away). In October its highs average 19.8°C, about as warm as Ulsan, with 73 mm of rain.
Among the 79 cities listed in South Korea, Ulsan ranks joint 17th of 79 for the warmest October highs and joint 69th of 79 for the driest October (rainfall, lowest first). The mean October high of those 79 cities is 19.3°C; Ulsan is 0.8°C warmer than that mean.
From October to November, average highs fall by 5.8°C to 14.3°C, and monthly rainfall falls from 73 mm to 48 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Ulsan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.1°C-1.0°C | -1.0°C | 31 | 4.4 | 10.010 h |
| February | 8.2°C0.1°C | 0.1°C | 39 | 5.1 | 10.911 h |
| March | 12.3°C3.6°C | 3.6°C | 71 | 7.4 | 11.912 h |
| April | 17.3°C8.1°C | 8.1°C | 92 | 7.5 | 13.113 h |
| May | 21.6°C13.0°C | 13.0°C | 100 | 7.8 | 14.014 h |
| June | 24.4°C17.6°C | 17.6°C | 143 | 9.1 | 14.515 h |
| July | 27.3°C22.2°C | 22.2°C | 216 | 13.3 | 14.314 h |
| August | 28.3°C23.5°C | 23.5°C | 213 | 14.1 | 13.513 h |
| September | 24.6°C19.4°C | 19.4°C | 173 | 10.4 | 12.412 h |
| October, selected | 20.1°C13.5°C | 13.5°C | 73 | 5.1 | 11.311 h |
| November | 14.3°C6.8°C | 6.8°C | 48 | 4.9 | 10.310 h |
| December | 8.0°C0.8°C | 0.8°C | 27 | 3.6 | 9.810 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Ungsang in OctoberSouth Korea · 20 kmHigh 19.8°C · Low 13.4°C · 73 mm rain
- Yangsan in OctoberSouth Korea · 34 kmHigh 20.7°C · Low 13.0°C · 71 mm rain
- Gijang in OctoberSouth Korea · 34 kmHigh 20.0°C · Low 14.9°C · 78 mm rain
- Gyeongju in OctoberSouth Korea · 35 kmHigh 20.1°C · Low 11.5°C · 67 mm rain
- Kimhae in OctoberSouth Korea · 52 kmHigh 20.5°C · Low 13.3°C · 71 mm rain
- Pohang in OctoberSouth Korea · 55 kmHigh 19.8°C · Low 13.1°C · 62 mm rain
- Busan in OctoberSouth Korea · 55 kmHigh 20.1°C · Low 14.6°C · 72 mm rain
- Gyeongsan-si in OctoberSouth Korea · 61 kmHigh 20.4°C · Low 10.6°C · 55 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Ulsan) is explained once on the Ulsan year overview and on the Sources, method and limits page.
Ungsang lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.