S
M
T
W
T
F
S
26
81°
72°
27
80°
69°
28
80°
73°
29
80°
73°
30
80°
72°
1
80°
71°
2
81°
73°
3
81°
73°
4
80°
73°
5
78°
71°
6
80°
67°
7
80°
72°
8
80°
73°
9
79°
72°
10
81°
73°
11
81°
74°
12
81°
74°
13
80°
74°
14
83°
72°
15
80°
73°
16
84°
75°
17
85°
73°
18
82°
72°
19
83°
73°
20
82°
71°
21
81°
69°
22
82°
70°
23
80°
71°
24
82°
69°
25
82°
69°
26
83°
71°
27
82°
72°
28
80°
71°
29
79°
72°
30
79°
71°
31
80°
71°
1
79°
72°
2
79°
73°
3
80°
74°
4
80°
74°
5
81°
73°
6
80°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Waimanalo
Waimanalo's May 2026 forecast shows daily high temperatures ranging from 79° to 85°, with overnight lows between 69° and 75°. The average high for May is 81° 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 Waimanalo. See also: June | July | August.
