Current sea water temperature:
+42.8°F
| Minimum sea water temperature in December: | 54.3°F |
| Maximum sea water temperature in December: | 42.6°F |
| Average sea water temperature in December: | 48.6°F |
| more information | |
14 days
forecast
forecast
| Montauk |
monthly
weather
weather
| Montauk |
Sea water temperature for the last 10 days:
| December 27 | 42.8°F | December 22 | 43.7°F |
| December 26 | 42.6°F | December 21 | 45.0°F |
| December 25 | 42.8°F | December 20 | 44.1°F |
| December 24 | 43.9°F | December 19 | 44.8°F |
| December 23 | 43.9°F | December 18 | 44.8°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
January
January
| Montauk |
Best time for vacation in Montauk
Montauk on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Montauk
Local time: 01:28
December 28, sunday
0300
27°F
E
9 mph
9 mph
0600
25°F
SE
10 mph
10 mph
0900
30°F
E
11 mph
11 mph
1200
34°F
E
13 mph
13 mph
1500
36°F
E
17 mph
17 mph
1800
37°F
NE
15 mph
15 mph
2100
39°F
NE
16 mph
16 mph
December 29, monday
0000
43°F
N
17 mph
17 mph
