Measurements:
°C
°F
CURRENT WEATHER
19:50
Fire Island
62°F
SE 14 mph
Feels like: 62°F
Precip: 1%
World Resorts USA Fire Island Weather

7 Day Weather Forecast

10.05
mon
DAY
70°F
SE 12 mph
precip
4%
NIGHT
56°F
SE 12 mph
precip
1%
10.06
tue
DAY
58°F
SE 9 mph
precip
1%
NIGHT
56°F
SE 4 mph
precip
1%
10.07
wed
DAY
66°F
NE 11 mph
precip
1%
NIGHT
64°F
NE 14 mph
precip
7%
10.08
thu
DAY
72°F
NE 11 mph
precip
3%
NIGHT
66°F
SE 6 mph
precip
2%
10.09
fri
DAY
66°F
SE 12 mph
precip
1%
NIGHT
62°F
NE 7 mph
precip
2%
10.10
sat
DAY
66°F
SE 6 mph
precip
3%
NIGHT
60°F
NW 5 mph
precip
17%
10.11
sun
DAY
66°F
N 9 mph
precip
16%
NIGHT
62°F
NW 10 mph
precip
74%

Fire Island Sea Water Temperature in October, °F

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Fire Island was 18.6°F. The maximum and minimum values were 16.1°F and 22.0°F respectively.

Fire Island on the Weather Map

Best Time to Visit Fire Island
The most sunny months:
November 16 days
July 14 days
October 14 days
The most warm months:
July 85.5 °F
August 83.6 °F
June 78.3 °F
Warmest sea temperature:
July 79.4 °F
August 79.0 °F
September 74.4 °F
The most cold months:
January 36.0 °F
February 36.9 °F
December 41.5 °F
The most rainy months:
August 3 days
April 3 days
December 3 days
The most windy months:
March 11 mph
January 11 mph
November 11 mph
more details