You have chosen to compare the two cities, in order to view the weather separately for each city or resort, simply follow the links Incheon, Korea and Jeju, Korea. You can also calculate distance Incheon — Jeju with the help of our distance calculator, which knows how to route between cities.
Incheon and Jeju — Comparison weather
Incheon, Korea and Jeju, Korea — Comparison weather. Learn where is warmer and colder where in any month of the year. Compare the day and night temperature, water temperature and precipitation. Where the sun shines longer, and where the rains.
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Comparison of daily temperature
Comparison night temperature
Comparing the temperature of the water
Comparison of precipitation
Incheon and Jeju Comparison seasons
| Most sunny months | |
| October | 20 days |
| May | 19 days |
| March | 18 days |
| The warmest months | |
| August | 29.2 °C |
| July | 28 °C |
| September | 25.9 °C |
| The warmest water (sea, ocean) | |
| August | 25.8 °C |
| September | 23.7 °C |
| July | 23.4 °C |
| The coldest months | |
| January | 1.1 °C |
| February | 3.3 °C |
| December | 3.4 °C |
| Rainiest months | |
| July | 10 days |
| August | 9 days |
| June | 5 days |
| Most windy months | |
| December | 18.1 km / h |
| February | 16.7 km / h |
| March | 16.6 km / h |
| Most sunny months | |
| October | 15 days |
| May | 15 days |
| March | 14 days |
| The warmest months | |
| August | 29 °C |
| July | 27.5 °C |
| September | 24.9 °C |
| The warmest water (sea, ocean) | |
| August | 27 °C |
| September | 24.7 °C |
| July | 24.5 °C |
| The coldest months | |
| January | 7.1 °C |
| February | 7.9 °C |
| December | 9.1 °C |
| Rainiest months | |
| August | 9 days |
| July | 8 days |
| September | 8 days |
| Most windy months | |
| January | 23.5 km / h |
| December | 23.4 km / h |
| February | 22.6 km / h |
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