Climate averages 1991–2020
Daejeon weather
in July.
A hot, very wet month: the 2nd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Daejeon: daytime highs average 28.8°C and nights cool to about 21.8°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 230 mm of rain on roughly 16 days, which makes July a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 23 min on an average July day.
The nearest other city in this atlas is Gongju (26 km away). In July its highs average 29.1°C, about as warm as Daejeon, with 265 mm of rain.
Among the 79 cities listed in South Korea, Daejeon ranks 12th of 79 for the warmest July highs and 20th of 79 for the driest July (rainfall, lowest first). The mean July high of those 79 cities is 27.8°C; Daejeon is 1.0°C warmer than that mean.
From July to August, average highs rise by 0.5°C to 29.3°C, and monthly rainfall falls from 230 mm to 197 mm.
The annual picture
July 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, selected | 28.8°C21.8°C | 21.8°C | 230 | 15.7 | 14.414 h |
| August | 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
July in nearby cities
- Gongju in JulySouth Korea · 26 kmHigh 29.1°C · Low 22.2°C · 265 mm rain
- Sejong in JulySouth Korea · 28 kmHigh 28.9°C · Low 21.7°C · 256 mm rain
- Cheongju-si in JulySouth Korea · 33 kmHigh 28.9°C · Low 21.8°C · 260 mm rain
- Cheonan in JulySouth Korea · 55 kmHigh 29.0°C · Low 21.9°C · 265 mm rain
- Asan in JulySouth Korea · 59 kmHigh 28.7°C · Low 21.8°C · 250 mm rain
- Iksan in JulySouth Korea · 59 kmHigh 28.2°C · Low 21.8°C · 262 mm rain
- Jeonju in JulySouth Korea · 62 kmHigh 28.4°C · Low 21.8°C · 257 mm rain
- Sangju in JulySouth Korea · 70 kmHigh 29.0°C · Low 21.7°C · 238 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.