World Resorts USA Montauk Weather

Montauk sea water temperature

Current sea water temperature:
+63.9°F
Minimum sea water temperature in June: 65.3°F
Maximum sea water temperature in June: 52.9°F
Average sea water temperature in June: 60.1°F

Sea water temperature for the last 10 days:

June 28 63.9°F June 23 61.2°F
June 27 63.1°F June 22 60.3°F
June 26 62.8°F June 21 59.7°F
June 25 62.4°F June 20 60.8°F
June 24 61.3°F June 19 61.2°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.

Best time for vacation in Montauk

Sunniest months:
November 16 days
October 14 days
December 14 days
Warmest months:
July 76.7 °F
August 75.5 °F
June 70.1 °F
Warmest sea temp:
August 70.2 °F
September 68.9 °F
July 68.4 °F
Coldest months:
January 36.6 °F
February 36.8 °F
December 41.9 °F
Rainiest months:
October 4 days
November 3 days
March 3 days
Windiest months:
December 14.3 mph
January 14.2 mph
March 13.6 mph

Montauk on a weather map

Montauk
+63°F
E 6 mph
Feels like: +63°F
Precip.: 35%
Places in USA:
Name
°F
+64°F
+77°F
+77°F
+59°F
+81°F
+84°F
+72°F
+77°F
+66°F
+63°F
+59°F
+79°F
+79°F
+81°F
+70°F
24 Hours Forecast
Montauk
Local time: 03:01
June 29, monday
0600
63°F
SE
7 mph
0900
66°F
S
7 mph
1200
75°F
N
3 mph
1500
72°F
N
9 mph
1800
72°F
N
9 mph
2100
70°F
N
7 mph
June 30, tuesday
0000
68°F
N
6 mph
0300
68°F
NE
7 mph
Units of measurement: °C / °F