Measurements:
°C
°F
Fire Island
62°F
S 7 mph
Feels like: 62°F
Precip: 5%
World Resorts USA Fire Island Weather

7 Day Weather Forecast

10.26
mon
DAY
64°F
E 7 mph
precip
1%
NIGHT
62°F
S 7 mph
precip
5%
10.27
tue
DAY
58°F
S 7 mph
precip
1%
NIGHT
54°F
E 1 mph
precip
4%
10.28
wed
DAY
60°F
N 2 mph
precip
7%
NIGHT
56°F
N 5 mph
precip
19%
10.29
thu
DAY
64°F
NE 9 mph
precip
3%
NIGHT
62°F
NE 10 mph
precip
9%
10.30
fri
DAY
70°F
SE 10 mph
precip
4%
NIGHT
58°F
S 6 mph
precip
3%
10.31
sat
DAY
60°F
S 3 mph
precip
11%
NIGHT
58°F
N 4 mph
precip
22%
11.01
sun
DAY
64°F
N 6 mph
precip
7%
NIGHT
58°F
N 3 mph
precip
16%

Fire Island Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Fire Island was 17.1°F. The maximum and minimum values were 15.0°F and 18.9°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:
December 3 days
August 3 days
April 3 days
The most windy months:
March 11 mph
January 11 mph
November 11 mph