18.12
thu
thu
Day

45°F
N 9 mph
Precip.
0%
0%
Night

48°F
N 22 mph
Precip.
0%
0%
19.12
fri
fri
Day

48°F
N 40 mph
Precip.
100%
100%
Night

37°F
E 35 mph
Precip.
0%
0%
20.12
sat
sat
Day

32°F
SE 24 mph
Precip.
0%
0%
Night

41°F
NE 24 mph
Precip.
0%
0%
21.12
sun
sun
Day

43°F
E 21 mph
Precip.
0%
0%
Night

32°F
E 29 mph
Precip.
0%
0%
22.12
mon
mon
Day

30°F
SE 28 mph
Precip.
0%
0%
Night

28°F
SE 22 mph
Precip.
0%
0%
23.12
tue
tue
Day

27°F
W 6 mph
Precip.
0%
0%
Night

36°F
NE 17 mph
Precip.
100%
100%
24.12
wed
wed
Day

39°F
SE 22 mph
Precip.
0%
0%
Night

37°F
SE 17 mph
Precip.
0%
0%
25.12
thu
thu
Day

37°F
SE 14 mph
Precip.
0%
0%
Night

32°F
S 16 mph
Precip.
0%
0%
26.12
fri
fri
Day

30°F
S 8 mph
Precip.
0%
0%
Night

37°F
N 14 mph
Precip.
20%
20%
27.12
sat
sat
Day

46°F
NE 25 mph
Precip.
100%
100%
Night

41°F
SE 20 mph
Precip.
0%
0%
28.12
sun
sun
Day

37°F
E 29 mph
Precip.
50%
50%
Night

27°F
SE 30 mph
Precip.
0%
0%
29.12
mon
mon
Day

28°F
SE 28 mph
Precip.
0%
0%
Night

28°F
SE 19 mph
Precip.
0%
0%
30.12
tue
tue
Day

28°F
W 4 mph
Precip.
0%
0%
Night

43°F
NE 19 mph
Precip.
100%
100%
31.12
wed
wed
Day

45°F
NW 6 mph
Precip.
100%
100%
Night

43°F
E 12 mph
Precip.
49%
49%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 48.1°F. The highest and lowest sea temperatures during the month were 50.7°F and 44.2°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 40.6°F. The highest and lowest sea temperatures during the month were 46.0°F and 38.1°F.
Air temperature in Montauk, °F
Precipitation total in Montauk, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Montauk
Montauk on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Montauk
Local time: 04:35
December 18, thursday
0600

36°F
E
5 mph
5 mph
0900

39°F
NW
2 mph
2 mph
1200

45°F
N
9 mph
9 mph
1500

46°F
N
14 mph
14 mph
1800

46°F
N
14 mph
14 mph
2100

46°F
N
19 mph
19 mph
December 19, friday
0000

48°F
N
22 mph
22 mph
0300

48°F
N
25 mph
25 mph



























