Climate averages 1991–2020
Koch'ang weather
in June.
A warm, wet month: the 3rd warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Koch'ang: daytime highs average 25.9°C and nights cool to about 17.8°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 147 mm of rain on roughly 10 days, which makes June a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 30 min on an average June day.
The nearest other city in this atlas is Jeongeup (27 km away). In June its highs average 26.4°C, about as warm as Koch'ang, with 157 mm of rain.
Among the 79 cities listed in South Korea, Koch'ang ranks joint 44th of 79 for the warmest June highs and 56th of 79 for the driest June (rainfall, lowest first). The mean June high of those 79 cities is 25.7°C; Koch'ang is 0.2°C warmer than that mean.
From June to July, average highs rise by 2.4°C to 28.3°C, and monthly rainfall rises from 147 mm to 238 mm.
The annual picture
June 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, selected | 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 | 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
June in nearby cities
- Jeongeup in JuneSouth Korea · 27 kmHigh 26.4°C · Low 17.7°C · 157 mm rain
- Masan in JuneSouth Korea · 36 kmHigh 26.7°C · Low 17.3°C · 162 mm rain
- Gwangju in JuneSouth Korea · 37 kmHigh 26.7°C · Low 17.3°C · 164 mm rain
- Muan in JuneSouth Korea · 53 kmHigh 25.6°C · Low 17.4°C · 156 mm rain
- Jeonju in JuneSouth Korea · 59 kmHigh 26.4°C · Low 17.3°C · 149 mm rain
- Gunsan in JuneSouth Korea · 61 kmHigh 24.0°C · Low 17.8°C · 126 mm rain
- Iksan in JuneSouth Korea · 61 kmHigh 26.5°C · Low 17.3°C · 133 mm rain
- Nangen in JuneSouth Korea · 62 kmHigh 26.8°C · Low 17.4°C · 161 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.