Measurements:
°C
°F
Incheon
50°F
NW 1 mph
Feels like: 50°F
Precip: 0%
World Resorts South Korea Incheon Weather September Weather in Incheon

Incheon Weather: September

Average Day Temperature: 81.8°F
Average Night Temperature: 73.2°F
Sea Water Temperature: 78.0°F
Number of Sunny Days: 17 days
Sunshine Hours: 11.9 - 13.0 hours
Number of Rainy Days: 4 days
Precipitation Totals: 4.2 in

Air Temperature in September, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
15
30
45
60
75
90
105
120
Day Temperature   
Night Temperature

The highest day temperature in September 2024 was 93°F. The lowest night temperature was 67°F. The average values for day and night temperatures during September were 83.1°F и 77.8°F respectivly.

Incheon Water Sea Temperature in September, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
70
73
76
79
82
85
88
91

The average sea surface temperature in September 2024 for Incheon was 83.4°F. The maximum and minimum values were 79.0°F and 86.2°F respectively.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
57%
27%
17%

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

Precipitation Totals in September, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.7
3.5
5.2
7.0
8.7
10.5
12.2
13.9

Precipitation total in September for Incheon is 4.2 in. It makes september one of the most rainy months of the year.

Wind Speed in September, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.9
3.8
5.7
7.6
9.5
11.5
13.4
15.3

The average wind speed in September is 7.6 mph. It makes September one of the most windless months of the year for Incheon.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.8
3.5
5.3
7.0
8.8
10.6
12.3
14.1

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 September is 8.4 hours.

Best Time to Visit Incheon
The most sunny months:
October 19 days
May 19 days
March 18 days
The most warm months:
August 88.3 °F
July 85.6 °F
September 81.8 °F
Warmest sea temperature:
August 82.0 °F
September 78.0 °F
July 77.1 °F
The most cold months:
January 32.2 °F
February 36.3 °F
December 36.6 °F
The most rainy months:
July 11 days
August 9 days
June 5 days
The most windy months:
December 11 mph
November 10 mph
February 10 mph

Incheon on the Weather Map

South Korea Resorts:
NAME
Busan +56
Incheon +50
Jeju +62
Muju +54
Seoul +52
Yongpyong +48
24 Hours Weather Forecast
Incheon
Local time: 21:18
10 apr, thursday
0000 50°F
N
3 mph
0300 50°F
N
4 mph
0600 48°F
N
2 mph
0900 48°F
SE
3 mph
1200 52°F
E
4 mph
1500 54°F
E
10 mph
1800 52°F
E
9 mph
2100 50°F
NE
3 mph