S
M
T
W
T
F
S
26
78°
70°
27
77°
72°
28
77°
71°
29
77°
70°
30
78°
70°
1
77°
70°
2
77°
69°
3
77°
69°
4
76°
70°
5
78°
70°
6
81°
71°
7
80°
71°
8
79°
68°
9
77°
70°
10
79°
71°
11
79°
71°
12
79°
71°
13
79°
71°
14
79°
69°
15
78°
69°
16
78°
70°
17
79°
71°
18
79°
70°
19
78°
72°
20
78°
71°
21
79°
71°
22
80°
71°
23
77°
70°
24
78°
69°
25
78°
70°
26
78°
71°
27
80°
71°
28
81°
71°
29
80°
72°
30
83°
71°
31
83°
72°
1
81°
67°
2
82°
68°
3
81°
67°
4
80°
68°
5
80°
68°
6
81°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Kapa'au
Kapa'au's May 2026 forecast shows daily high temperatures ranging from 80° to 83°, with overnight lows between 67° and 72°. The average high for May is 81° with an average low of 69°. 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 Kapa'au. See also: June | July | August.
