World Resorts USA Fire Island Weather

Fire Island Sea Temperature in January

Average sea water temperature in January:
+41.6°F
Minimum sea water temperature in January: 46.6°F
Maximum sea water temperature in January: 34.2°F

Daily sea water temperature in January, °F

Show year:
2026
2025
2024

The average sea water temperature in January of 2026 was 40.1°F. The highest and lowest sea temperatures during the month were 41.5°F and 36.3°F.

Monthly sea water temperature in Fire Island, °F

Which USA resorts have warmest sea in January?

Place name January 2026 January 2025
Kailua Kona 78.3°F 78.2°F
Honolulu 77.2°F 77.6°F
Hawaii 77.2°F 77.5°F
Maui 77.0°F 76.9°F
Kauai 77.0°F 75.0°F
West Palm Beach 76.6°F 75.5°F
Oahu 76.1°F 76.5°F
Fort Lauderdale 75.9°F 75.1°F
Miami Beach 74.0°F 73.1°F
Key West 72.5°F 70.3°F
Key Largo 71.7°F 71.1°F
Miami 71.2°F 70.7°F
Port St. Lucie 70.1°F 67.1°F
Naples 67.7°F 64.7°F
Cape Coral 67.3°F 64.3°F
Cocoa Beach 66.9°F 60.9°F
Siesta Key 65.0°F 61.5°F
Sarasota 65.0°F 61.2°F
Orlando 64.8°F 59.8°F
Tampa 64.3°F 60.4°F

Best time for vacation in Fire Island

Sunniest months:
November 16 days
July 14 days
October 14 days
Warmest months:
July 82.0 °F
August 80.2 °F
June 75.4 °F
Warmest sea temp:
July 76.5 °F
August 76.1 °F
September 72.0 °F
Coldest months:
January 37.4 °F
February 38.2 °F
December 42.4 °F
Rainiest months:
December 3 days
August 3 days
April 3 days
Windiest months:
March 11.7 mph
January 11.5 mph
November 11.5 mph

Fire Island on a weather map

Fire Island
+64°F
NE 9 mph
Feels like: +64°F
Precip.: 3%
Places in USA:
Name
°F
+63°F
+66°F
+77°F
+66°F
+68°F
+84°F
+70°F
+64°F
+68°F
+59°F
+68°F
+82°F
+82°F
+81°F
+66°F
24 Hours Forecast
Fire Island
Local time: 13:27
October 29, thursday
1500
64°F
NE
10 mph
1800
61°F
NE
8 mph
2100
61°F
NE
9 mph
October 30, friday
0000
61°F
NE
9 mph
0300
59°F
NE
9 mph
0600
59°F
E
9 mph
0900
61°F
E
8 mph
1200
68°F
SE
11 mph
Units of measurement: °C / °F