S
M
T
W
T
F
S
29
33°
20°
30
38°
13°
1
37°
20°
2
35°
21°
3
37°
20°
4
36°
20°
5
38°
17°
6
36°
16°
7
32°
15°
8
32°
16°
9
31°
17°
10
35°
13°
11
33°
12°
12
32°
15°
13
30°
19°
14
33°
7°
15
31°
7°
16
28°
3°
17
26°
10°
18
26°
4°
19
29°
0°
20
22°
5°
21
21°
4°
22
23°
-2°
23
24°
-2°
24
21°
-1°
25
20°
-2°
26
19°
5°
27
21°
9°
28
26°
1°
29
28°
2°
30
22°
13°
31
26°
8°
1
28°
0°
2
23°
7°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Hamptons
Hamptons's December 2026 forecast shows daily high temperatures ranging from 19° to 38°, with overnight lows between -2° and 21°. The average high for December is 29° with an average low of 9°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Hamptons. See also: January | February | March.
