Climate averages 1991–2020
Gunsan weather
in August.
A hot, very wet month: the warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Gunsan: daytime highs average 28.0°C and nights cool to about 23.3°C. By daytime temperature it is the warmest month of the year.
Expect about 225 mm of rain on roughly 14 days, which makes August a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 31 min on an average August day.
The nearest other city in this atlas is Iksan (22 km away). In August its highs average 29.0°C, 1.0°C warmer than Gunsan, with 233 mm of rain.
Among the 79 cities listed in South Korea, Gunsan ranks joint 60th of 79 for the warmest August highs and joint 32nd of 79 for the driest August (rainfall, lowest first). The mean August high of those 79 cities is 28.6°C; Gunsan is 0.6°C cooler than that mean.
From August to September, average highs fall by 3.6°C to 24.4°C, and monthly rainfall falls from 225 mm to 144 mm.
The annual picture
August 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
Gunsan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.4°C-2.1°C | -2.1°C | 23 | 5.1 | 10.010 h |
| February | 5.2°C-1.3°C | -1.3°C | 31 | 4.6 | 10.911 h |
| March | 9.4°C2.3°C | 2.3°C | 48 | 6.7 | 11.912 h |
| April | 15.0°C7.3°C | 7.3°C | 81 | 7.2 | 13.113 h |
| May | 20.0°C12.8°C | 12.8°C | 87 | 7.2 | 14.114 h |
| June | 24.0°C17.8°C | 17.8°C | 126 | 8.0 | 14.615 h |
| July | 26.8°C22.3°C | 22.3°C | 255 | 14.4 | 14.314 h |
| August, selected | 28.0°C23.3°C | 23.3°C | 225 | 14.0 | 13.514 h |
| September | 24.4°C18.7°C | 18.7°C | 144 | 8.3 | 12.412 h |
| October | 18.9°C12.4°C | 12.4°C | 58 | 4.9 | 11.311 h |
| November | 12.2°C5.9°C | 5.9°C | 44 | 6.4 | 10.310 h |
| December | 5.8°C0.0°C | 0.0°C | 27 | 5.7 | 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
August in nearby cities
- Iksan in AugustSouth Korea · 22 kmHigh 29.0°C · Low 22.4°C · 233 mm rain
- Boryeong in AugustSouth Korea · 42 kmHigh 28.4°C · Low 23.5°C · 227 mm rain
- Jeonju in AugustSouth Korea · 43 kmHigh 29.0°C · Low 22.3°C · 217 mm rain
- Jeongeup in AugustSouth Korea · 46 kmHigh 29.2°C · Low 22.7°C · 241 mm rain
- Koch'ang in AugustSouth Korea · 61 kmHigh 29.1°C · Low 23.2°C · 228 mm rain
- Gongju in AugustSouth Korea · 65 kmHigh 29.6°C · Low 22.8°C · 241 mm rain
- Hongseong in AugustSouth Korea · 69 kmHigh 29.1°C · Low 22.6°C · 244 mm rain
- Daejeon in AugustSouth Korea · 73 kmHigh 29.3°C · Low 22.4°C · 197 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 Gunsan) is explained once on the Gunsan year overview and on the Sources, method and limits page.