S
M
T
W
T
F
S
27
60°
50°
28
75°
50°
29
68°
54°
30
70°
55°
1
63°
42°
2
68°
54°
3
66°
57°
4
70°
58°
5
66°
56°
6
64°
57°
7
72°
55°
8
72°
55°
9
66°
54°
10
68°
52°
11
75°
50°
12
66°
47°
13
68°
56°
14
66°
57°
15
72°
59°
16
70°
60°
17
73°
60°
18
74°
62°
19
68°
54°
20
63°
52°
21
56°
51°
22
52°
49°
23
59°
50°
24
65°
55°
25
64°
56°
26
69°
55°
27
71°
54°
28
70°
55°
29
66°
57°
30
66°
60°
31
70°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Amagansett
Amagansett's May 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Amagansett. See also: June | July | August.