S
M
T
W
T
F
S
26
79°
57°
27
81°
57°
28
72°
57°
29
81°
61°
30
68°
52°
1
70°
48°
2
66°
48°
3
68°
39°
4
79°
41°
5
77°
46°
6
73°
63°
7
69°
43°
8
73°
51°
9
78°
55°
10
81°
58°
11
72°
47°
12
68°
50°
13
73°
51°
14
75°
50°
15
81°
59°
16
83°
60°
17
80°
56°
18
82°
61°
19
83°
62°
20
80°
56°
21
75°
59°
22
78°
60°
23
75°
60°
24
75°
59°
25
76°
60°
26
77°
61°
27
76°
59°
28
77°
58°
29
77°
60°
30
75°
61°
31
76°
62°
1
77°
62°
2
79°
63°
3
80°
63°
4
79°
64°
5
80°
64°
6
79°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Athens
Athens's May 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 43° and 64°. The average high for May is 77° with an average low of 58°. 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 Athens. See also: June | July | August.