Weather in Jeju in Summer
| June | July | August | ||||
| Average day temperature: | 74.3°F | 81.8°F | 84.4°F | |||
| Average night temperature: | 68.6°F | 75.5°F | 78.2°F | |||
| Sea water temperature: | 68.3°F | 76.3°F | 81.0°F | |||
| Number of sunny days: | 11 days | 9 days | 10 days | |||
| Day length: | 14.2 - 14.4 h. | 13.8 - 14.3 h. | 12.9 - 13.8 h. | |||
| Number of rainy days: | 7 days | 8 days | 9 days | |||
| Precipitation totals: | 7.3 in. | 6.7 in. | 9.3 in. | |||
Day & Night air temperature, °F
June
July
August
0
14
28
42
56
70
84
98
112
85.0
82.6
75.0
78.0
75.6
68.8
| Day temperature | Night temperature |
Sea water temperature, °F
June
July
August
0
13
26
39
52
65
78
91
104
81
76.3
68.3
Precipitation total, in.
June
July
August
0.0
1.6
3.3
4.9
6.5
8.2
9.8
11.4
13.1
9.5
6.8
7.9
Sunny, partly cloudy and cloudy days
June
July
August
0
5
10
15
20
25
30
35
9
10
8
12
12
10
10
9
12
| Cloudy days | Partly cloudy days | Sunny days |
Wind speed, mph
June
July
August
0.0
1.6
3.2
4.8
6.5
8.1
9.7
11.3
9.4
8.7
8.1
Average sunny hours
June
July
August
0
1
2
3
4
5
6
7
8
9
7.1
7.6
8.1
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.
Best time for vacation in Jeju
Jeju on a weather map
Leaflet | Tiles © Esri
Places in South Korea:
Name
°F
24 Hours Forecast
Jeju
Local time: 22:56
April 09, wednesday
0000
54°F
S
2 mph
2 mph
0300
54°F
E
0 mph
0 mph
0600
52°F
W
3 mph
3 mph
0900
61°F
W
4 mph
4 mph
1200
64°F
SW
4 mph
4 mph
1500
66°F
NE
2 mph
2 mph
1800
64°F
N
3 mph
3 mph
2100
61°F
N
3 mph
3 mph
