Climate averages 1991–2020
Daejeon 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 Daejeon: daytime highs average 29.3°C and nights cool to about 22.4°C. By daytime temperature it is the warmest month of the year.
Expect about 197 mm of rain on roughly 15 days, which makes August a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 33 min on an average August day.
The nearest other city in this atlas is Gongju (26 km away). In August its highs average 29.6°C, about as warm as Daejeon, with 241 mm of rain.
Among the 79 cities listed in South Korea, Daejeon ranks joint 12th of 79 for the warmest August highs and 9th of 79 for the driest August (rainfall, lowest first). The mean August high of those 79 cities is 28.6°C; Daejeon is 0.7°C warmer than that mean.
From August to September, average highs fall by 4.1°C to 25.2°C, and monthly rainfall falls from 197 mm to 138 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
Daejeon 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-4.1°C | -4.1°C | 24 | 4.8 | 10.010 h |
| February | 6.2°C-2.8°C | -2.8°C | 33 | 4.8 | 10.811 h |
| March | 11.6°C0.9°C | 0.9°C | 53 | 7.4 | 11.912 h |
| April | 18.2°C6.6°C | 6.6°C | 78 | 7.7 | 13.113 h |
| May | 23.5°C12.4°C | 12.4°C | 86 | 7.8 | 14.114 h |
| June | 27.6°C17.9°C | 17.9°C | 123 | 8.9 | 14.615 h |
| July | 28.8°C21.8°C | 21.8°C | 230 | 15.7 | 14.414 h |
| August, selected | 29.3°C22.4°C | 22.4°C | 197 | 15.0 | 13.514 h |
| September | 25.2°C17.0°C | 17.0°C | 138 | 8.4 | 12.412 h |
| October | 19.6°C10.1°C | 10.1°C | 56 | 5.1 | 11.311 h |
| November | 12.3°C3.4°C | 3.4°C | 41 | 6.2 | 10.310 h |
| December | 5.3°C-2.4°C | -2.4°C | 25 | 5.0 | 9.710 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
- Gongju in AugustSouth Korea · 26 kmHigh 29.6°C · Low 22.8°C · 241 mm rain
- Sejong in AugustSouth Korea · 28 kmHigh 29.3°C · Low 22.3°C · 226 mm rain
- Cheongju-si in AugustSouth Korea · 33 kmHigh 29.4°C · Low 22.3°C · 227 mm rain
- Cheonan in AugustSouth Korea · 55 kmHigh 29.3°C · Low 22.5°C · 237 mm rain
- Asan in AugustSouth Korea · 59 kmHigh 29.1°C · Low 22.4°C · 234 mm rain
- Iksan in AugustSouth Korea · 59 kmHigh 29.0°C · Low 22.4°C · 233 mm rain
- Jeonju in AugustSouth Korea · 62 kmHigh 29.0°C · Low 22.3°C · 217 mm rain
- Sangju in AugustSouth Korea · 70 kmHigh 29.4°C · Low 22.3°C · 212 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 Daejeon) is explained once on the Daejeon year overview and on the Sources, method and limits page.