Measurements:
°C
°F
CURRENT WEATHER
05:23
Seoul
68°F
W 9 mph
Feels like: 68°F
Precip: 5%
World Resorts South Korea Seoul Weather

7 Day Weather Forecast

09.09
wed
DAY
78°F
W 10 mph
precip
7%
NIGHT
66°F
SW 6 mph
precip
12%
09.10
thu
DAY
78°F
W 6 mph
precip
1%
NIGHT
70°F
SW 2 mph
precip
13%
09.11
fri
DAY
80°F
SW 2 mph
precip
10%
NIGHT
72°F
S 1 mph
precip
14%
09.12
sat
DAY
84°F
SE 4 mph
precip
9%
NIGHT
76°F
SE 2 mph
precip
13%
09.13
sun
DAY
82°F
SE 3 mph
precip
8%
NIGHT
74°F
SE 2 mph
precip
17%
09.14
mon
DAY
82°F
S 4 mph
precip
10%
NIGHT
76°F
SW 2 mph
precip
14%
09.15
tue
DAY
86°F
S 1 mph
precip
2%
NIGHT
76°F
W 3 mph
precip
4%

Seoul Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Seoul was 24.8°F. The maximum and minimum values were 22.3°F and 27.2°F respectively.

Seoul on the Weather Map

Best Time to Visit Seoul
The most sunny months:
May 19 days
October 18 days
March 17 days
The most warm months:
August 91.1 °F
July 89.8 °F
June 85.8 °F
Warmest sea temperature:
August 82.1 °F
September 77.6 °F
July 77.6 °F
The most cold months:
January 30.6 °F
December 34.4 °F
February 37.0 °F
The most rainy months:
July 11 days
August 8 days
September 5 days
The most windy months:
April 7 mph
March 7 mph
May 6 mph
more details