S
M
T
W
T
F
S
26
79°
63°
27
78°
64°
28
78°
65°
29
79°
65°
30
79°
65°
1
78°
65°
2
78°
64°
3
78°
64°
4
78°
65°
5
78°
65°
6
80°
65°
7
79°
66°
8
79°
64°
9
77°
66°
10
79°
66°
11
80°
66°
12
79°
64°
13
79°
65°
14
78°
65°
15
77°
65°
16
79°
66°
17
80°
67°
18
79°
67°
19
80°
67°
20
80°
68°
21
80°
68°
22
79°
67°
23
77°
66°
24
78°
63°
25
81°
65°
26
79°
66°
27
80°
61°
28
74°
60°
29
74°
62°
30
77°
60°
31
78°
62°
1
79°
62°
2
78°
56°
3
79°
57°
4
78°
56°
5
77°
57°
6
78°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ka‘au
Ka‘au's May 2026 forecast shows daily high temperatures ranging from 74° to 79°, with overnight lows between 56° and 62°. The average high for May is 77° with an average low of 59°. 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 Ka‘au. See also: June | July | August.
