S
M
T
W
T
F
S
26
56°
39°
27
58°
40°
28
58°
42°
29
57°
41°
30
60°
46°
1
62°
47°
2
60°
46°
3
59°
47°
4
60°
43°
5
53°
41°
6
52°
41°
7
52°
40°
8
53°
40°
9
55°
41°
10
54°
47°
11
57°
42°
12
60°
46°
13
56°
46°
14
54°
42°
15
54°
42°
16
55°
41°
17
56°
42°
18
64°
44°
19
56°
45°
20
60°
48°
21
59°
43°
22
55°
41°
23
57°
46°
24
57°
46°
25
54°
49°
26
59°
50°
27
64°
51°
28
55°
46°
29
55°
49°
30
59°
44°
31
60°
47°
1
64°
50°
2
64°
49°
3
59°
45°
4
57°
51°
5
57°
43°
6
58°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cannon Beach
Cannon Beach's May 2026 forecast shows daily high temperatures ranging from 52° to 64°, with overnight lows between 39° and 51°. The average high for May is 57° with an average low of 45°. 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 Cannon Beach. See also: June | July | August.