19.09
sat
sat
Day
61°F
SW 14 mph
Precip.
15%
15%
Night
63°F
NW 14 mph
Precip.
15%
15%
20.09
sun
sun
Day
64°F
NW 12 mph
Precip.
17%
17%
Night
66°F
N 16 mph
Precip.
86%
86%
21.09
mon
mon
Day
63°F
SW 29 mph
Precip.
36%
36%
Night
64°F
SW 25 mph
Precip.
21%
21%
22.09
tue
tue
Day
59°F
SW 32 mph
Precip.
39%
39%
Night
59°F
W 32 mph
Precip.
74%
74%
23.09
wed
wed
Day
63°F
W 37 mph
Precip.
24%
24%
Night
63°F
SW 34 mph
Precip.
22%
22%
24.09
thu
thu
Day
61°F
SW 34 mph
Precip.
74%
74%
Night
59°F
SW 30 mph
Precip.
27%
27%
25.09
fri
fri
Day
59°F
SW 20 mph
Precip.
10%
10%
Night
63°F
SW 14 mph
Precip.
12%
12%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 69.9°F. The highest and lowest sea temperatures during the month were 70.7°F and 68.7°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 64.7°F. The highest and lowest sea temperatures during the month were 69.3°F and 60.1°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: 05:22
September 19, saturday
0600
63°F
SW
18 mph
18 mph
0900
61°F
SW
17 mph
17 mph
1200
61°F
SW
14 mph
14 mph
1500
63°F
W
9 mph
9 mph
1800
63°F
W
9 mph
9 mph
2100
63°F
NW
14 mph
14 mph
September 20, sunday
0000
63°F
NW
14 mph
14 mph
0300
63°F
NW
12 mph
12 mph
