World Resorts

USA

Fire Island Weather

Fire Island 14 Days Forecast

30.12
tue

Day

28°F

E 19 mph

Precip.
0%

Night

27°F

E 15 mph

Precip.
0%

31.12
wed

Day

34°F

E 16 mph

Precip.
0%

Night

30°F

NE 16 mph

Precip.
0%

01.01
thu

Day

27°F

SE 13 mph

Precip.
0%

Night

27°F

E 12 mph

Precip.
0%

02.01
fri

Day

28°F

E 12 mph

Precip.
0%

Night

32°F

NE 8 mph

Precip.
0%

03.01
sat

Day

30°F

E 7 mph

Precip.
0%

Night

30°F

SE 4 mph

Precip.
0%

04.01
sun

Day

30°F

NW 10 mph

Precip.
0%

Night

30°F

SW 6 mph

Precip.
0%

05.01
mon

Day

34°F

NW 7 mph

Precip.
0%

Night

37°F

N 6 mph

Precip.
0%

06.01
tue

Day

46°F

N 17 mph

Precip.
100%

Night

36°F

E 17 mph

Precip.
0%

07.01
wed

Day

30°F

E 20 mph

Precip.
0%

Night

30°F

E 12 mph

Precip.
0%

08.01
thu

Day

32°F

S 8 mph

Precip.
0%

Night

30°F

SE 7 mph

Precip.
0%

09.01
fri

Day

32°F

SE 5 mph

Precip.
0%

Night

34°F

NE 3 mph

Precip.
0%

10.01
sat

Day

37°F

W 6 mph

Precip.
100%

Night

36°F

SE 7 mph

Precip.
26%

11.01
sun

Day

36°F

SE 9 mph

Precip.
0%

Night

34°F

SE 10 mph

Precip.
0%

12.01
mon

Day

30°F

NE 10 mph

Precip.
0%

Night

32°F

W 6 mph

Precip.
25%

sea water
temperature

Fire Island

monthly
weather

Fire Island

current
weather

Fire Island

7 days
forecast

Fire Island

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2025

2024

2023

The average sea water temperature in December of 2025 was 45.4°F. The highest and lowest sea temperatures during the month were 51.1°F and 41.7°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.