23.12
tue
tue
Day
37°F
N 14 mph
Precip.
100%
100%
Night
34°F
E 12 mph
Precip.
0%
0%
24.12
wed
wed
Day
37°F
SE 16 mph
Precip.
0%
0%
Night
32°F
SE 6 mph
Precip.
0%
0%
25.12
thu
thu
Day
36°F
NE 12 mph
Precip.
0%
0%
Night
36°F
S 11 mph
Precip.
0%
0%
26.12
fri
fri
Day
32°F
W 10 mph
Precip.
100%
100%
Night
30°F
W 12 mph
Precip.
100%
100%
27.12
sat
sat
Day
28°F
SW 13 mph
Precip.
25%
25%
Night
27°F
SW 6 mph
Precip.
0%
0%
28.12
sun
sun
Day
39°F
N 12 mph
Precip.
100%
100%
Night
34°F
SE 18 mph
Precip.
0%
0%
29.12
mon
mon
Day
27°F
SE 17 mph
Precip.
49%
49%
Night
21°F
E 17 mph
Precip.
0%
0%
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 December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 46.0°F. The highest and lowest sea temperatures during the month were 51.1°F and 42.8°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 39.7°F. The highest and lowest sea temperatures during the month were 43.9°F and 36.3°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: 12:43
December 23, tuesday
1500
39°F
NE
11 mph
11 mph
1800
39°F
E
9 mph
9 mph
2100
36°F
E
11 mph
11 mph
December 24, wednesday
0000
34°F
E
12 mph
12 mph
0300
32°F
E
13 mph
13 mph
0600
32°F
SE
19 mph
19 mph
0900
34°F
SE
19 mph
19 mph
1200
37°F
SE
16 mph
16 mph
