The highest day temperature in June 2026 was 82°F. The lowest night temperature was 62°F. The average values for day and night temperatures during June were 76.2°F и 69.6°F respectivly.

The average sea surface temperature in June 2026 for Incheon was 72.1°F. The maximum and minimum values were 68.2°F and 75.8°F respectively.

Most of the days in June are sunny but you can also expect cloudy and gloomy days.

Precipitation total in June for Incheon is 3.9 in. It makes june one of the most rainy months of the year.

The average wind speed in June is 7.2 mph. It makes June the most windless month of the year for Incheon.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Incheon in June is 10.1 hours.