Climate averages 1991–2020
Jeju City weather
in July.
A warm, very wet month: the 2nd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in Jeju City: daytime highs average 27.6°C and nights cool to about 24.3°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 184 mm of rain on roughly 12 days, which makes July a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 08 min on an average July day.
The nearest other city in this atlas is Seogwipo (29 km away). In July its highs average 28.7°C, 1.1°C warmer than Jeju City, with 227 mm of rain.
Among the 79 cities listed in South Korea, Jeju City ranks 54th of 79 for the warmest July highs and 1st of 79 for the driest July (rainfall, lowest first). The mean July high of those 79 cities is 27.8°C; Jeju City is 0.2°C cooler than that mean.
From July to August, average highs rise by 1.2°C to 28.7°C, and monthly rainfall falls from 184 mm to 168 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
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 | 23.5°C19.7°C | 19.7°C | 189 | 11.5 | 14.314 h |
| July, selected | 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
July in nearby cities
- Seogwipo in JulySouth Korea · 29 kmHigh 28.7°C · Low 24.3°C · 227 mm rain
- Mokpo in JulySouth Korea · 145 kmHigh 26.2°C · Low 22.0°C · 233 mm rain
- Muan in JulySouth Korea · 165 kmHigh 27.8°C · Low 22.1°C · 219 mm rain
- Yeosu in JulySouth Korea · 174 kmHigh 26.0°C · Low 22.7°C · 268 mm rain
- Masan in JulySouth Korea · 182 kmHigh 28.6°C · Low 22.0°C · 243 mm rain
- Suncheon in JulySouth Korea · 183 kmHigh 28.6°C · Low 22.6°C · 321 mm rain
- Gwangju in JulySouth Korea · 186 kmHigh 28.7°C · Low 21.9°C · 255 mm rain
- Kwangyang in JulySouth Korea · 190 kmHigh 28.2°C · Low 22.6°C · 321 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.