S
M
T
W
T
F
S
26
79°
59°
27
70°
55°
28
67°
52°
29
82°
60°
30
74°
60°
1
66°
56°
2
65°
48°
3
70°
41°
4
77°
46°
5
80°
52°
6
78°
64°
7
77°
56°
8
69°
51°
9
73°
55°
10
81°
57°
11
77°
58°
12
72°
53°
13
78°
50°
14
77°
56°
15
74°
51°
16
82°
61°
17
85°
63°
18
87°
63°
19
88°
65°
20
86°
66°
21
84°
62°
22
82°
61°
23
81°
60°
24
80°
63°
25
81°
63°
26
83°
62°
27
82°
66°
28
83°
62°
29
84°
66°
30
84°
65°
31
81°
61°
1
81°
63°
2
84°
65°
3
85°
66°
4
84°
67°
5
85°
67°
6
86°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Port Santorini
Port Santorini's May 2026 forecast shows daily high temperatures ranging from 74° to 88°, with overnight lows between 51° and 68°. The average high for May is 83° with an average low of 63°. 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 Port Santorini. See also: June | July | August.
