S
M
T
W
T
F
S
26
84°
68°
27
83°
69°
28
84°
69°
29
84°
67°
30
84°
66°
1
80°
68°
2
81°
67°
3
80°
66°
4
81°
65°
5
82°
68°
6
81°
66°
7
81°
67°
8
83°
66°
9
82°
65°
10
80°
67°
11
79°
68°
12
79°
68°
13
80°
67°
14
79°
68°
15
79°
68°
16
80°
67°
17
79°
68°
18
79°
68°
19
80°
67°
20
79°
68°
21
79°
68°
22
80°
69°
23
80°
68°
24
79°
69°
25
80°
69°
26
79°
68°
27
79°
69°
28
80°
69°
29
80°
68°
30
81°
69°
31
80°
69°
1
80°
68°
2
81°
69°
3
80°
69°
4
80°
68°
5
81°
69°
6
80°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Kihei
Kihei's May 2026 forecast shows daily high temperatures ranging from 79° to 84°, with overnight lows between 65° and 69°. The average high for May is 81° with an average low of 68°. 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 Kihei. See also: June | July | August.