Average sea water temperature in September:
+72.3°F
| Minimum sea water temperature in September: | 80.4°F |
| Maximum sea water temperature in September: | 62.4°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 73.6°F. The highest and lowest sea temperatures during the month were 75.6°F and 71.1°F.
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| Fire Island |
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| Fire Island |
current
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| Fire Island |
14 days
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| Fire Island |
Monthly sea water temperature in Fire Island, °F
Which USA resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Key West | 88.5°F | 86.9°F |
| Naples | 87.8°F | 86.1°F |
| Key Largo | 87.8°F | 86.6°F |
| Siesta Key | 87.7°F | 84.9°F |
| Sarasota | 87.7°F | 84.8°F |
| Cape Coral | 87.5°F | 85.2°F |
| Houston | 87.3°F | 84.9°F |
| Corpus Christi | 87.2°F | 85.8°F |
| Tampa | 87.1°F | 84.3°F |
| St. Petersburg | 87.0°F | 84.1°F |
| Clearwater Beach | 87.0°F | 84.0°F |
| West Palm Beach | 86.8°F | 86.2°F |
| New Orleans | 86.8°F | 84.3°F |
| Fort Lauderdale | 86.7°F | 86.4°F |
| Miami Beach | 86.5°F | 86.1°F |
| Orange Beach | 86.3°F | 84.0°F |
| Pensacola Beach | 86.3°F | 83.9°F |
| Panama City Beach | 86.3°F | 83.4°F |
| Pensacola | 86.3°F | 83.9°F |
| Fort Walton Beach | 86.2°F | 83.3°F |
Best time for vacation in Fire Island
Fire Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Fire Island
Local time: 06:12
September 19, saturday
0900
63°F
SW
11 mph
11 mph
1200
68°F
SW
7 mph
7 mph
1500
70°F
NW
7 mph
7 mph
1800
64°F
NW
9 mph
9 mph
2100
63°F
NW
7 mph
7 mph
September 20, sunday
0000
63°F
NW
7 mph
7 mph
0300
61°F
NW
6 mph
6 mph
0600
63°F
NW
6 mph
6 mph
