21.07
tue
tue
Day
77°F
NW 14 mph
Precip.
23%
23%
Night
72°F
N 11 mph
Precip.
66%
66%
22.07
wed
wed
Day
81°F
NE 14 mph
Precip.
36%
36%
Night
72°F
S 9 mph
Precip.
7%
7%
23.07
thu
thu
Day
72°F
SE 8 mph
Precip.
1%
1%
Night
68°F
W 3 mph
Precip.
3%
3%
24.07
fri
fri
Day
77°F
N 2 mph
Precip.
1%
1%
Night
68°F
W 5 mph
Precip.
10%
10%
25.07
sat
sat
Day
77°F
W 11 mph
Precip.
1%
1%
Night
70°F
N 4 mph
Precip.
4%
4%
26.07
sun
sun
Day
81°F
N 5 mph
Precip.
1%
1%
Night
72°F
NE 10 mph
Precip.
6%
6%
27.07
mon
mon
Day
82°F
NE 13 mph
Precip.
6%
6%
Night
72°F
W 4 mph
Precip.
81%
81%
sea water
temperature
temperature
| Fire Island |
monthly
weather
weather
| Fire Island |
current
weather
weather
| Fire Island |
14 days
forecast
forecast
| Fire Island |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 74.8°F. The highest and lowest sea temperatures during the month were 81.5°F and 71.6°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 73.8°F. The highest and lowest sea temperatures during the month were 78.4°F and 69.6°F.
Air temperature in Fire Island, °F
Precipitation total in Fire Island, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Fire Island
Fire Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Fire Island
Local time: 09:27
July 21, tuesday
1200
77°F
NW
14 mph
14 mph
1500
77°F
NW
15 mph
15 mph
1800
72°F
N
13 mph
13 mph
2100
68°F
W
2 mph
2 mph
July 22, wednesday
0000
72°F
N
11 mph
11 mph
0300
72°F
NE
11 mph
11 mph
0600
72°F
NE
11 mph
11 mph
0900
77°F
NE
11 mph
11 mph
