S
M
T
W
T
F
S
26
83°
60°
27
73°
54°
28
68°
54°
29
85°
60°
30
76°
59°
1
69°
57°
2
70°
48°
3
73°
42°
4
81°
43°
5
82°
50°
6
85°
63°
7
75°
57°
8
74°
50°
9
71°
56°
10
84°
59°
11
83°
57°
12
72°
54°
13
81°
52°
14
77°
48°
15
80°
54°
16
88°
63°
17
90°
64°
18
89°
66°
19
89°
67°
20
91°
68°
21
91°
68°
22
87°
65°
23
83°
64°
24
84°
64°
25
83°
63°
26
85°
66°
27
87°
62°
28
86°
65°
29
87°
66°
30
87°
66°
31
86°
64°
1
87°
66°
2
88°
66°
3
88°
67°
4
87°
67°
5
88°
66°
6
89°
68°
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 77° to 91°, with overnight lows between 48° and 68°. The average high for May is 87° with an average low of 64°. 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.