S
M
T
W
T
F
S
26
73°
62°
27
74°
61°
28
72°
55°
29
76°
58°
30
77°
66°
1
76°
65°
2
77°
68°
3
79°
59°
4
77°
64°
5
78°
60°
6
79°
65°
7
78°
61°
8
80°
47°
9
72°
45°
10
72°
56°
11
74°
60°
12
75°
65°
13
74°
65°
14
75°
61°
15
73°
59°
16
72°
59°
17
73°
61°
18
75°
64°
19
73°
65°
20
74°
58°
21
72°
56°
22
71°
59°
23
73°
60°
24
74°
62°
25
75°
66°
26
N/A
27
71°
64°
28
69°
58°
29
73°
60°
30
73°
54°
31
71°
49°
1
67°
48°
2
70°
49°
3
74°
48°
4
72°
46°
5
72°
46°
6
69°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Byron Bay
Byron Bay's May 2026 forecast shows daily high temperatures ranging from 67° to 74°, with overnight lows between 46° and 64°. The average high for May is 71° with an average low of 52°. 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 Byron Bay. See also: June | July | August.