Measurements:
°C
°F
Fire Island
52°F
NE 7 mph
Feels like: 50°F
Precip: 0%
World Resorts USA Fire Island Weather September Weather in Fire Island

Fire Island Weather: September

Average Day Temperature: 75.8°F
Average Night Temperature: 69.1°F
Sea Water Temperature: 75.0°F
Number of Sunny Days: 15 days
Sunshine Hours: 11.8 - 13.1 hours
Number of Rainy Days: 2 days
Precipitation Totals: 1.2 in

Air Temperature in September, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
14
28
42
56
70
84
98
112
Day Temperature   
Night Temperature

The highest day temperature in September 2024 was 87°F. The lowest night temperature was 60°F. The average values for day and night temperatures during September were 75.4°F и 65.7°F respectivly.

Fire Island Water Sea Temperature in September, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
59
64
69
74
79
84
89

The average sea surface temperature in September 2024 for Fire Island was 72.1°F. The maximum and minimum values were 67.8°F and 75.2°F respectively.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
50%
23%
27%

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in September, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.3
0.6
0.9
1.2
1.5
1.8
2.1

Precipitation total in September for Fire Island is 1.2 in.

Wind Speed in September, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
2.0
4.1
6.1
8.2
10.2
12.3
14.3

The average wind speed in September is 9.8 mph. It makes September one of the most windless months of the year for Fire Island.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.6
3.2
4.7
6.3
7.9
9.5
11.0

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Fire Island in September is 7.8 hours.

Best Time to Visit Fire Island
The most sunny months:
November 16 days
September 15 days
July 13 days
The most warm months:
July 84.1 °F
August 82.8 °F
June 76.4 °F
Warmest sea temperature:
July 80.0 °F
August 79.4 °F
September 75.0 °F
The most cold months:
January 36.6 °F
February 37.6 °F
December 42.5 °F
The most rainy months:
April 4 days
October 3 days
November 3 days
The most windy months:
March 12 mph
January 11 mph
November 11 mph

Fire Island on the Weather Map

USA Resorts:
NAME
Boston +48
Chicago +56
Hawaii +76
Honolulu +76
Houston +72
Las Vegas +50
Los Angeles +52
Miami +76
New York +54
Orlando +74
San Diego +58
San Francisco +52
Sarasota +72
Tampa +72
Washington +56
24 Hours Weather Forecast
Fire Island
Local time: 07:47
18 apr, friday
0900 52°F
NE
7 mph
1200 56°F
N
12 mph
1500 58°F
N
20 mph
1800 54°F
N
21 mph
2100 50°F
N
19 mph
19 apr, saturday
0000 50°F
NE
19 mph
0300 50°F
NE
16 mph
0600 50°F
NE
14 mph