Measurements:
°C
°F
Fire Island
112°F
SE 14 mph
Feels like: 122°F
Precip: 0%
World Resorts USA Fire Island Weather

7 Day Weather Forecast

07.15
wed
DAY
106°F
SE 13 mph
precip
1%
NIGHT
86°F
SE 4 mph
precip
1%
07.16
thu
DAY
94°F
E 11 mph
precip
1%
NIGHT
82°F
SE 7 mph
precip
1%
07.17
fri
DAY
88°F
E 2 mph
precip
1%
NIGHT
78°F
N 8 mph
precip
5%
07.18
sat
DAY
70°F
N 6 mph
precip
75%
NIGHT
74°F
E 9 mph
precip
26%
07.19
sun
DAY
82°F
SE 18 mph
precip
4%
NIGHT
72°F
SE 7 mph
precip
2%
07.20
mon
DAY
80°F
N 7 mph
precip
3%
NIGHT
76°F
N 11 mph
precip
7%
07.21
tue
DAY
82°F
NE 13 mph
precip
8%
NIGHT
70°F
SE 14 mph
precip
4%

Fire Island Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Fire Island was 23.9°F. The maximum and minimum values were 22.0°F and 27.5°F respectively.

Fire Island on the Weather Map

Best Time to Visit Fire Island
The most sunny months:
November 16 days
September 15 days
October 14 days
The most warm months:
July 84.9 °F
August 83.0 °F
June 78.3 °F
Warmest sea temperature:
July 79.8 °F
August 78.9 °F
September 74.6 °F
The most cold months:
January 36.0 °F
February 36.9 °F
December 41.5 °F
The most rainy months:
December 3 days
March 3 days
April 3 days
The most windy months:
March 11 mph
January 11 mph
November 11 mph