S
M
T
W
T
F
S
26
87°
73°
27
86°
74°
28
85°
76°
29
86°
75°
30
87°
75°
1
87°
75°
2
87°
78°
3
87°
80°
4
87°
76°
5
88°
77°
6
89°
77°
7
87°
79°
8
88°
76°
9
87°
77°
10
87°
78°
11
87°
77°
12
87°
77°
13
87°
78°
14
87°
75°
15
N/A
16
87°
77°
17
87°
76°
18
86°
75°
19
85°
75°
20
86°
75°
21
85°
76°
22
87°
75°
23
86°
74°
24
87°
75°
25
86°
74°
26
85°
73°
27
88°
72°
28
87°
74°
29
84°
71°
30
84°
72°
31
85°
74°
1
84°
75°
2
84°
75°
3
85°
74°
4
84°
75°
5
84°
75°
6
85°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Humacao
Humacao's May 2026 forecast shows daily high temperatures ranging from 84° to 88°, with overnight lows between 71° and 77°. The average high for May is 86° with an average low of 74°. 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 Humacao. See also: June | July | August.
