World Resorts South Korea Seoul

Seoul Monthly Weather Averages

Please click on any column to get detailed information about Seoul weather in that particular month. You will get daily weather information for that month for the last several years.

Day & Night air temperature, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
15
30
45
60
75
90
105
36.8
53.1
67.9
81.0
88.1
87.3
82.9
74.6
64.4
52.8
38.9
33.9
31.0
46.0
58.7
69.7
77.2
75.8
68.7
60.5
53.1
42.6
31.1
27.6
Day temperature   
Night temperature

The warmest month in Seoul is august. The average daily temp is 88.1°F. The average nightly temp is 77.2°F.

Sea water temperature, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
13
26
39
52
65
78
91
104
46.7
57.1
66.9
74.7
78.5
74.4
67.5
57.8
48.7
41.1
37.3
39.8

The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 78.5°F.

Precipitation total, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.6
3.2
4.8
6.4
8.0
9.6
11.2
1
2
3.1
4.9
9.3
9.3
4.7
3.9
2.1
1.8
0.7
0.6

January is the month with least precipitations during the year. The average precipitation totals for this month is 0.6 in. The month with most precipitation total is August.

Number of rainy days

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
11
12
2
3
3
5
9
10
5
5
3
2
1
1

This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.

Wind speed, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
5.6
5.6
5.3
5.2
5.5
5.5
5.6
6.7
7.1
6.5
6.4
5.4
Sunny, partly cloudy and cloudy days
1
2
3
4
5
6
7
8
9
10
11
12
0
5
10
15
20
25
30
35
7
6
5
7
11
14
7
5
5
5
6
6
9
9
9
9
12
9
8
8
8
10
7
9
15
15
17
15
8
8
15
18
16
16
15
16
Cloudy days   
Partly cloudy days   
Sunny days
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
11
5.9
6.6
7.4
7.5
6.4
6.2
8.6
9.6
8.8
7.9
7.1
6.3

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

* Charts above show average data for the last 3 years.

Best time for vacation in Seoul

Sunniest months:
October 19 days
May 19 days
March 17 days
Warmest months:
August 86.9 °F
July 85.6 °F
June 82.2 °F
Warmest sea temp:
August 78.6 °F
September 74.7 °F
July 74.4 °F
Coldest months:
January 32.8 °F
December 35.9 °F
February 38.2 °F
Rainiest months:
July 11 days
August 9 days
May 5 days
Windiest months:
April 7.3 mph
March 7.2 mph
May 6.6 mph

Seoul on a weather map

Leaflet | Tiles © Esri
Places in South Korea:
Name
°F
Yongpyong
+54°F
Incheon
+54°F
Muju
+61°F
Busan
+61°F
Seoul
+63°F
Jeju
+57°F
24 Hours Forecast
Seoul
Local time: 13:05
April 25, friday
1500
63°F
E
17 mph
1800
59°F
E
16 mph
2100
55°F
E
9 mph
April 26, saturday
0000
52°F
NE
5 mph
0300
50°F
N
2 mph
0600
48°F
N
4 mph
0900
57°F
NE
7 mph
1200
66°F
NE
12 mph
Units of measurement: °C / °F