Measurements:
°C
°F
CURRENT WEATHER
08:18
Seoul
70°F
SW 2 mph
Feels like: 70°F
Precip: 2%
World Resorts South Korea Seoul Weather

7 Day Weather Forecast

09.29
tue
DAY
80°F
W 1 mph
precip
1%
NIGHT
70°F
NE 2 mph
precip
2%
09.30
wed
DAY
80°F
NE 7 mph
precip
1%
NIGHT
66°F
SE 11 mph
precip
6%
10.01
thu
DAY
72°F
E 11 mph
precip
0%
NIGHT
60°F
SE 8 mph
precip
1%
10.02
fri
DAY
70°F
SE 10 mph
precip
0%
NIGHT
62°F
SE 2 mph
precip
10%
10.03
sat
DAY
74°F
S 1 mph
precip
3%
NIGHT
66°F
S 1 mph
precip
2%
10.04
sun
DAY
74°F
E 2 mph
precip
2%
NIGHT
66°F
SW 4 mph
precip
2%
10.05
mon
DAY
74°F
W 4 mph
precip
11%
NIGHT
64°F
SW 3 mph
precip
2%

Seoul Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Seoul was 24.4°F. The maximum and minimum values were 22.6°F and 26.5°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 77.7 °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
May 4 days
The most windy months:
April 7 mph
March 7 mph
May 6 mph
more details