S
M
T
W
T
F
S
26
68°
61°
27
69°
52°
28
76°
53°
29
83°
53°
30
82°
69°
1
84°
70°
2
77°
60°
3
66°
60°
4
66°
56°
5
62°
56°
6
64°
58°
7
61°
50°
8
63°
58°
9
63°
52°
10
64°
51°
11
66°
51°
12
71°
47°
13
78°
56°
14
75°
57°
15
74°
62°
16
69°
58°
17
66°
56°
18
64°
52°
19
63°
59°
20
64°
57°
21
64°
49°
22
63°
50°
23
67°
56°
24
64°
53°
25
60°
50°
26
63°
49°
27
N/A
28
62°
51°
29
65°
55°
30
61°
50°
31
62°
52°
1
64°
56°
2
63°
53°
3
62°
50°
4
63°
47°
5
63°
50°
6
61°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Adelaide
Adelaide's May 2026 forecast shows daily high temperatures ranging from 61° to 65°, with overnight lows between 47° and 56°. The average high for May is 63° with an average low of 51°. 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 Adelaide. See also: June | July | August.