The climate in Incheon during October can be summarized as mild and reasonably dry.
October is in the fall / autumn in Incheon and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 9°C (49°F) is normal.
| Daytime temperature | 19.8°C 67.6°F | 
|---|---|
| Nightly temperature | 9.2°C 48.6°F | 
| Average temperature | 14.5°C 58.1°F | 
| Daily sunshine | 7.4 hrs | 
| Avg rainfall | 51 mm 2 ins | 
| Rainy days | 6 days | 
| Sea temperature | 19.3°C 66.8°F | 
| Humidity | 72% | 
| Windspeed | 6.8kph 4 mph | 
On average October is the 6th driest month of the year in Incheon with around 51mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.4 hours of sunshine per day.
 
				 
						 
						The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Incheon in October 2025.
Best places to visit in October
| Hottest month: | August | 29°C 84.2°F | 
|---|---|---|
| Driest month: | December | 21mm 0.8ins | 
| Sunniest month: | October | 7.4hrs | 
| Coldest month: | January | 1.2°C 34.2°F | 
| Wettest month: | July | 317mm 12.5ins | 
 
	 
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