Current sea water temperature:
+49.6°F
| Minimum sea water temperature in December: | 54.3°F |
| Maximum sea water temperature in December: | 43.2°F |
| Average sea water temperature in December: | 49.0°F |
| more information | |
14 days
forecast
forecast
| Montauk |
monthly
weather
weather
| Montauk |
Sea water temperature for the last 10 days:
| December 4 | 49.6°F | November 29 | 50.7°F |
| December 3 | 50.4°F | November 28 | 52.0°F |
| December 2 | 50.2°F | November 27 | 51.8°F |
| December 1 | 50.7°F | November 26 | 51.8°F |
| November 30 | 50.7°F | November 25 | 52.3°F |
Monthly sea water temperature, °F
When is the warmest sea in Montauk?
Based on the data about daily sea water temperature for the last three years the warmest sea in Montauk was noticed in August, September and July.
Monthly Sea Temperatures in Montauk, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 70.0°F. The highest and lowest sea temperatures during the month were 71.6°F and 68.5°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 68.7°F. The highest and lowest sea temperatures during the month were 70.2°F and 67.6°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 68.9°F. The highest and lowest sea temperatures during the month were 71.6°F and 64.6°F.
current
weather
weather
| Montauk |
weather in
December
December
| Montauk |
Best time for vacation in Montauk
Montauk on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Montauk
Local time: 01:50
December 05, friday
0300
19°F
S
16 mph
16 mph
0600
19°F
S
9 mph
9 mph
0900
23°F
S
5 mph
5 mph
1200
28°F
N
5 mph
5 mph
1500
30°F
NE
7 mph
7 mph
1800
34°F
NE
5 mph
5 mph
2100
36°F
N
6 mph
6 mph
December 06, saturday
0000
37°F
N
4 mph
4 mph
