July in Incheon averages a daily high of 27.9°C with nights around 21.3°C. Expect roughly 15.6 wet days totalling 357.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Incheon is May–June.
Based on INCHEON, KS (6.5km), 1995–2024. 18 years of July data.