S
M
T
W
T
F
S
26
81°
71°
27
81°
69°
28
81°
73°
29
81°
71°
30
81°
70°
1
80°
71°
2
81°
71°
3
80°
70°
4
81°
68°
5
81°
66°
6
79°
68°
7
80°
69°
8
81°
69°
9
80°
70°
10
79°
69°
11
78°
68°
12
80°
72°
13
81°
73°
14
82°
74°
15
82°
72°
16
81°
73°
17
79°
72°
18
78°
73°
19
78°
72°
20
79°
72°
21
78°
71°
22
80°
71°
23
78°
72°
24
79°
72°
25
79°
73°
26
80°
72°
27
79°
72°
28
79°
73°
29
80°
74°
30
80°
73°
31
79°
74°
1
79°
73°
2
80°
72°
3
79°
73°
4
79°
74°
5
80°
74°
6
79°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wailua
Wailua's May 2026 forecast shows daily high temperatures ranging from 78° to 82°, with overnight lows between 66° and 74°. The average high for May is 80° with an average low of 72°. 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 Wailua. See also: June | July | August.
