World Resorts South Korea Seoul Weather

Seoul weather in September

Weather in Seoul: September

Average day temperature: 79.8°F
Average night temperature: 67.2°F
Sea water temperature: 74.5°F
Number of sunny days: 16 days
Day length: 11.9 - 13.0 hours
Number of rainy days: 5 days
Precipitation totals: 4.4 in.

Air temperature in September, °F

Show year:
2023
2022
2021

The highest day temperature during September of 2023 was 90°F. At the same time the lowest night temperature was 61°F. Day and night temperature averages during September were 79.6°F and 68.9°F.

Sea water temperature in Seoul in September, °F

Show year:
2023
2022
2021

The average sea water temperature in September of 2023 was 75.5°F. The highest and lowest sea temperatures during the month were 77.2°F and 72.0°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Seoul in September is 4.6 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 5.3 mph It makes September lest windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 7.9.

Best time for vacation in Seoul

Sunniest months:
October 20 days
May 19 days
March 18 days
Warmest months:
August 86.6 °F
July 85.8 °F
June 82.1 °F
Warmest sea temp:
August 78.3 °F
September 74.5 °F
July 74.4 °F
Coldest months:
January 32.8 °F
December 35.9 °F
February 38.7 °F
Rainiest months:
July 11 days
August 9 days
May 5 days
Windiest months:
April 7.3 mph
March 7.3 mph
May 6.6 mph

Seoul on a weather map

Seoul
+72°F
E 9 mph
Feels like: +73°F
Precip.: 0%
Places in South Korea:
Name
°F
+72°F
+59°F
+70°F
+63°F
+72°F
+63°F
24 Hours Forecast
Seoul
Local time: 12:51
May 02, thursday
1500
73°F
E
10 mph
1800
72°F
E
8 mph
2100
64°F
E
4 mph
May 03, friday
0000
61°F
NE
2 mph
0300
59°F
NE
2 mph
0600
57°F
N
1 mph
0900
68°F
SE
2 mph
1200
77°F
SE
4 mph
Units of measurement: °C / °F