World Resorts USA Kauai Weather

Kauai Sea Temperature in August

Average sea water temperature in August:
+79.7°F
Minimum sea water temperature in August: 81.3°F
Maximum sea water temperature in August: 76.1°F

Daily sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 79.1°F. The highest and lowest sea temperatures during the month were 81.3°F and 76.1°F.

Monthly sea water temperature in Kauai, °F

Which USA resorts have warmest sea in August?

Place name August 2025 August 2024
Sanibel Island 88.8°F 87.3°F
Everglades 88.8°F 87.0°F
Key West 88.8°F 87.8°F
Key Largo 88.7°F 87.3°F
Naples 88.7°F 87.0°F
St. Petersburg 88.7°F 86.9°F
Tampa 88.6°F 86.4°F
Sarasota 88.6°F 87.2°F
Siesta Key 88.6°F 87.3°F
Clearwater Beach 88.5°F 87.0°F
Miami 88.1°F 86.4°F
Miami Beach 87.9°F 86.5°F
Galveston 87.9°F 88.3°F
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
Fort Lauderdale 87.2°F 85.8°F
Corpus Christi 87.0°F 87.9°F
West Palm Beach 86.8°F 86.2°F
Cocoa Beach 86.8°F 84.5°F
Pensacola Beach 86.6°F 87.4°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 74.6 °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
+70°F
SW 9 mph
Feels like: +70°F
Precip.: 0%
Places in USA:
Name
°F
+37°F
+72°F
+72°F
+75°F
+73°F
+68°F
+63°F
+64°F
+30°F
+70°F
+55°F
+57°F
+63°F
+66°F
+37°F
24 Hours Forecast
Kauai
Local time: 14:08
February 24, tuesday
1500
70°F
SW
9 mph
1800
66°F
SW
10 mph
2100
66°F
SW
11 mph
February 25, wednesday
0000
66°F
W
13 mph
0300
64°F
W
11 mph
0600
63°F
W
11 mph
0900
66°F
W
11 mph
1200
68°F
W
12 mph
Units of measurement: °C / °F