S
M
T
W
T
F
S
26
66°
54°
27
66°
50°
28
64°
55°
29
59°
54°
30
59°
50°
1
64°
50°
2
66°
55°
3
66°
55°
4
63°
48°
5
64°
46°
6
66°
52°
7
70°
52°
8
64°
55°
9
66°
48°
10
66°
52°
11
73°
57°
12
72°
61°
13
68°
59°
14
72°
57°
15
77°
61°
16
75°
55°
17
75°
61°
18
77°
59°
19
77°
63°
20
75°
68°
21
75°
61°
22
70°
61°
23
70°
63°
24
72°
64°
25
84°
66°
26
88°
70°
27
73°
68°
28
70°
64°
29
N/A
30
78°
62°
31
80°
63°
1
78°
67°
2
73°
66°
3
77°
67°
4
77°
65°
5
73°
62°
6
76°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Jeju
Jeju's May 2026 forecast shows daily high temperatures ranging from 73° to 80°, with overnight lows between 62° and 67°. The average high for May is 77° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Jeju. See also: June | July | August.
