S
M
T
W
T
F
S
26
67°
52°
27
59°
51°
28
57°
48°
29
60°
50°
30
63°
53°
1
60°
54°
2
86°
49°
3
90°
49°
4
93°
48°
5
84°
46°
6
76°
45°
7
66°
49°
8
64°
48°
9
64°
48°
10
69°
47°
11
66°
49°
12
65°
47°
13
64°
49°
14
66°
48°
15
64°
42°
16
60°
46°
17
61°
42°
18
59°
42°
19
60°
40°
20
61°
42°
21
67°
46°
22
67°
46°
23
66°
45°
24
68°
47°
25
67°
44°
26
68°
47°
27
69°
48°
28
70°
48°
29
71°
49°
30
70°
48°
31
71°
49°
1
70°
48°
2
69°
49°
3
70°
48°
4
69°
47°
5
69°
46°
6
67°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Alberni
Port Alberni's May 2026 forecast shows daily high temperatures ranging from 59° to 93°, with overnight lows between 40° and 49°. The average high for May is 69° with an average low of 47°. 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 Port Alberni. See also: June | July | August.
