World Resorts South Korea Jeju

Jeju Monthly Weather Averages

Please click on any column to get detailed information about Jeju 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
14
28
42
56
70
84
98
112
48.2
59.0
68.0
77.3
85.0
82.6
75.0
68.7
61.5
54.2
46.5
45.1
44.7
54.8
63.7
72.5
78.0
75.6
68.8
61.5
54.9
48.2
42.0
41.3
Day temperature   
Night temperature

The warmest month in Jeju is august. The average daily temp is 85.0°F. The average nightly temp is 78.0°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
62.4
66.7
72.2
77.1
81
76.3
68.3
61.9
58.7
56.8
57.2
59.3

The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 81.0°F.

Precipitation total, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.9
3.9
5.8
7.8
9.7
11.6
13.6
2.4
2.3
4.6
11.3
9.5
6.8
7.9
5.2
4
3.5
2.8
3

November is the month with least precipitations during the year. The average precipitation totals for this month is 2.3 in. The month with most precipitation total is September.

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
4
4
4
8
8
8
7
5
5
5
5
4

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
2
4
6
8
10
12
14
16
12.8
11.1
12
11.4
9.4
8.7
8.1
9.3
10.2
11.4
13.3
13.3
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
16
9
9
13
9
10
8
7
8
10
12
16
9
10
8
10
12
12
10
10
8
9
10
8
7
11
14
7
10
9
12
14
14
12
6
7
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
4.2
5.9
6.9
5.6
7.1
7.6
8.1
8.7
7.9
6.4
4.9
4.6

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 Jeju

Sunniest months:
October 15 days
May 15 days
April 14 days
Warmest months:
August 84.4 °F
July 81.8 °F
September 77.4 °F
Warmest sea temp:
August 81.1 °F
September 77.1 °F
July 76.3 °F
Coldest months:
January 44.8 °F
February 46.2 °F
December 48.5 °F
Rainiest months:
August 9 days
July 8 days
September 7 days
Windiest months:
January 14.4 mph
December 14.3 mph
February 14.0 mph

Jeju on a weather map

Leaflet | Tiles © Esri
Places in South Korea:
Name
°F
Yongpyong
+41°F
Incheon
+48°F
Muju
+39°F
Busan
+52°F
Seoul
+50°F
Jeju
+52°F
24 Hours Forecast
Jeju
Local time: 04:52
April 09, wednesday
0600
52°F
W
4 mph
0900
61°F
W
4 mph
1200
66°F
SW
5 mph
1500
64°F
SE
4 mph
1800
64°F
N
2 mph
2100
61°F
N
5 mph
April 10, thursday
0000
61°F
N
7 mph
0300
59°F
NE
7 mph
Units of measurement: °C / °F