World Resorts USA Kauai Weather

Kauai Sea Temperature in October

Average sea water temperature in October:
+80.4°F
Minimum sea water temperature in October: 82.0°F
Maximum sea water temperature in October: 78.4°F

Daily sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 81.3°F. The highest and lowest sea temperatures during the month were 81.9°F and 80.4°F.

Monthly sea water temperature in Kauai, °F

Which USA resorts have warmest sea in October?

Place name October 2025 October 2024
South Padre Island 84.0°F 82.4°F
Key West 83.8°F 82.9°F
Fort Lauderdale 83.5°F 83.0°F
Miami Beach 83.4°F 83.4°F
Islamorada 83.1°F 82.9°F
Key Largo 83.0°F 83.1°F
Miami 82.7°F 82.9°F
Everglades 82.5°F 82.6°F
Corpus Christi 82.2°F 80.6°F
Marco Island 82.0°F 81.9°F
Naples 81.9°F 81.6°F
Princeville 81.3°F 79.2°F
Kauai 81.3°F 79.2°F
Cape Coral 81.1°F 81.2°F
Kailua Kona 80.9°F 80.6°F
Honolulu 80.7°F 80.6°F
Hawaii 80.6°F 80.5°F
Siesta Key 80.4°F 80.7°F
Houston 80.4°F 78.8°F
Sarasota 80.2°F 80.5°F

Best time for vacation in Kauai

Sunniest months:
January 6 days
December 5 days
February 4 days
Warmest months:
September 80.3 °F
August 80.0 °F
July 79.2 °F
Warmest sea temp:
September 80.6 °F
October 80.4 °F
August 79.6 °F
Coldest months:
February 73.9 °F
March 74.2 °F
January 74.7 °F
Rainiest months:
March 2 days
January 2 days
November 1 day
Windiest months:
July 11.7 mph
June 10.9 mph
May 10.8 mph

Kauai on a weather map

Kauai
+75°F
W 7 mph
Feels like: +77°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+77°F
+77°F
+45°F
+55°F
+70°F
+77°F
+70°F
+25°F
+57°F
+48°F
+63°F
+63°F
+46°F
+9°F
24 Hours Forecast
Kauai
Local time: 18:01
December 04, thursday
2100
73°F
W
9 mph
December 05, friday
0000
72°F
W
11 mph
0300
73°F
NW
13 mph
0600
73°F
NW
12 mph
0900
75°F
NW
13 mph
1200
77°F
W
11 mph
1500
79°F
W
12 mph
1800
73°F
W
13 mph
Units of measurement: °C / °F