Climate averages 1991–2020
Koch'ang 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 Koch'ang: daytime highs average 19.8°C and nights cool to about 11.7°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 57 mm of rain on roughly 6 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 Jeongeup (27 km away). In October its highs average 19.7°C, about as warm as Koch'ang, with 60 mm of rain.
Among the 79 cities listed in South Korea, Koch'ang ranks joint 25th of 79 for the warmest October highs and joint 29th of 79 for the driest October (rainfall, lowest first). The mean October high of those 79 cities is 19.3°C; Koch'ang is 0.4°C warmer than that mean.
From October to November, average highs fall by 6.5°C to 13.2°C, and monthly rainfall falls from 57 mm to 47 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
Koch'ang climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.3°C-2.1°C | -2.1°C | 28 | 5.9 | 10.110 h |
| February | 6.3°C-1.1°C | -1.1°C | 33 | 5.4 | 10.911 h |
| March | 11.0°C2.0°C | 2.0°C | 55 | 7.3 | 11.912 h |
| April | 17.0°C7.1°C | 7.1°C | 80 | 7.5 | 13.113 h |
| May | 22.1°C12.6°C | 12.6°C | 88 | 7.8 | 14.014 h |
| June | 25.9°C17.8°C | 17.8°C | 147 | 9.5 | 14.515 h |
| July | 28.3°C22.5°C | 22.5°C | 238 | 15.6 | 14.314 h |
| August | 29.1°C23.2°C | 23.2°C | 228 | 16.0 | 13.513 h |
| September | 25.3°C18.3°C | 18.3°C | 150 | 9.5 | 12.412 h |
| October, selected | 19.8°C11.7°C | 11.7°C | 57 | 5.5 | 11.311 h |
| November | 13.2°C5.4°C | 5.4°C | 47 | 6.9 | 10.310 h |
| December | 6.7°C-0.2°C | -0.2°C | 31 | 6.5 | 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
- Jeongeup in OctoberSouth Korea · 27 kmHigh 19.7°C · Low 10.6°C · 60 mm rain
- Masan in OctoberSouth Korea · 36 kmHigh 20.4°C · Low 10.4°C · 55 mm rain
- Gwangju in OctoberSouth Korea · 37 kmHigh 20.2°C · Low 10.1°C · 56 mm rain
- Muan in OctoberSouth Korea · 53 kmHigh 20.1°C · Low 12.1°C · 52 mm rain
- Jeonju in OctoberSouth Korea · 59 kmHigh 19.6°C · Low 9.9°C · 59 mm rain
- Gunsan in OctoberSouth Korea · 61 kmHigh 18.9°C · Low 12.4°C · 58 mm rain
- Iksan in OctoberSouth Korea · 61 kmHigh 19.6°C · Low 10.2°C · 58 mm rain
- Nangen in OctoberSouth Korea · 62 kmHigh 20.1°C · Low 9.9°C · 60 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 Koch'ang) is explained once on the Koch'ang year overview and on the Sources, method and limits page.