Climate averages 1991–2020
Jeju City weather
in June.
A warm, very wet month: the 4th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Jeju City: daytime highs average 23.5°C and nights cool to about 19.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 189 mm of rain on roughly 12 days, which makes June a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 20 min on an average June day.
The nearest other city in this atlas is Seogwipo (29 km away). In June its highs average 25.1°C, 1.7°C warmer than Jeju City, with 229 mm of rain.
Among the 79 cities listed in South Korea, Jeju City ranks 69th of 79 for the warmest June highs and 74th of 79 for the driest June (rainfall, lowest first). The mean June high of those 79 cities is 25.7°C; Jeju City is 2.3°C cooler than that mean.
From June to July, average highs rise by 4.1°C to 27.6°C, and monthly rainfall falls from 189 mm to 184 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
Jeju City climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.0°C4.7°C | 4.7°C | 73 | 11.7 | 10.210 h |
| February | 9.1°C5.0°C | 5.0°C | 65 | 9.4 | 11.011 h |
| March | 12.2°C7.5°C | 7.5°C | 94 | 10.3 | 12.012 h |
| April | 16.4°C11.4°C | 11.4°C | 102 | 8.9 | 13.013 h |
| May | 20.1°C15.5°C | 15.5°C | 109 | 8.8 | 13.914 h |
| June, selected | 23.5°C19.7°C | 19.7°C | 189 | 11.5 | 14.314 h |
| July | 27.6°C24.3°C | 24.3°C | 184 | 12.1 | 14.114 h |
| August | 28.7°C25.7°C | 25.7°C | 168 | 13.7 | 13.413 h |
| September | 25.3°C22.3°C | 22.3°C | 165 | 11.1 | 12.412 h |
| October | 20.7°C17.4°C | 17.4°C | 79 | 6.7 | 11.411 h |
| November | 15.8°C11.9°C | 11.9°C | 70 | 8.8 | 10.510 h |
| December | 10.5°C6.8°C | 6.8°C | 68 | 11.0 | 10.010 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
- Seogwipo in JuneSouth Korea · 29 kmHigh 25.1°C · Low 19.6°C · 229 mm rain
- Mokpo in JuneSouth Korea · 145 kmHigh 23.3°C · Low 17.4°C · 170 mm rain
- Muan in JuneSouth Korea · 165 kmHigh 25.6°C · Low 17.4°C · 156 mm rain
- Yeosu in JuneSouth Korea · 174 kmHigh 22.8°C · Low 18.6°C · 194 mm rain
- Masan in JuneSouth Korea · 182 kmHigh 26.7°C · Low 17.3°C · 162 mm rain
- Suncheon in JuneSouth Korea · 183 kmHigh 26.1°C · Low 18.3°C · 194 mm rain
- Gwangju in JuneSouth Korea · 186 kmHigh 26.7°C · Low 17.3°C · 164 mm rain
- Kwangyang in JuneSouth Korea · 190 kmHigh 25.6°C · Low 18.4°C · 194 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 Jeju City) is explained once on the Jeju City year overview and on the Sources, method and limits page.