World Resorts South Korea Jeju Weather

Jeju 7 Days Forecast

23.04
wed
Day
61°F
SE 1 mph
Precip.
83%
Night
57°F
E 6 mph
Precip.
0%
24.04
thu
Day
64°F
SE 11 mph
Precip.
0%
Night
54°F
SE 14 mph
Precip.
0%
25.04
fri
Day
57°F
SE 9 mph
Precip.
0%
Night
54°F
E 8 mph
Precip.
0%
26.04
sat
Day
64°F
SW 6 mph
Precip.
0%
Night
59°F
E 4 mph
Precip.
0%
27.04
sun
Day
63°F
S 6 mph
Precip.
0%
Night
59°F
SE 5 mph
Precip.
0%
28.04
mon
Day
61°F
SE 9 mph
Precip.
0%
Night
57°F
E 6 mph
Precip.
0%
29.04
tue
Day
64°F
E 10 mph
Precip.
0%
Night
61°F
NE 8 mph
Precip.
0%

Sea water temperature in April, °F

Show year:
2025
2024
2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
52
55
58
61
64
67

The average sea water temperature in April of 2025 was 57.4°F. The highest and lowest sea temperatures during the month were 58.3°F and 56.3°F.

Sea water temperature in May, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
56
59
62
65
68
71

The average sea water temperature in May of 2024 was 63.4°F. The highest and lowest sea temperatures during the month were 66.0°F and 60.6°F.

Air temperature in Jeju, °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

Precipitation total in Jeju, 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
* 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
+46°F
+55°F
+61°F
+57°F
+61°F
+59°F
24 Hours Forecast
Jeju
Local time: 07:40
April 23, wednesday
0900
59°F
SE
4 mph
1200
61°F
SE
1 mph
1500
61°F
E
6 mph
1800
59°F
SE
6 mph
2100
57°F
E
6 mph
April 24, thursday
0000
57°F
E
6 mph
0300
55°F
E
7 mph
0600
57°F
E
5 mph
Units of measurement: °C / °F