World Resorts USA Kauai Weather

Kauai Sea Temperature in April

Average sea water temperature in April:
+75.9°F
Minimum sea water temperature in April: 77.7°F
Maximum sea water temperature in April: 74.3°F

Daily sea water temperature in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 75.9°F. The highest and lowest sea temperatures during the month were 77.4°F and 75.0°F.

Monthly sea water temperature in Kauai, °F

Which USA resorts have warmest sea in April?

Place name April 2026 April 2025
Everglades 78.6°F 78.8°F
Key Largo 78.2°F 78.5°F
West Palm Beach 78.2°F 78.3°F
Key West 78.2°F 78.0°F
Fort Lauderdale 78.1°F 78.0°F
Miami Beach 78.0°F 78.3°F
Hialeah 77.7°F 77.9°F
Miami 77.5°F 77.9°F
Hilo 77.0°F 77.2°F
Honolulu 76.5°F 77.4°F
Cape Coral 76.4°F 77.2°F
Marco Island 76.3°F 77.3°F
Hawaii 76.2°F 77.3°F
Maui 75.9°F 76.6°F
Kauai 75.9°F 74.9°F
Naples 75.8°F 77.0°F
Tampa 75.3°F 76.6°F
St. Petersburg 75.2°F 76.3°F
Cocoa Beach 75.0°F 75.1°F
Corpus Christi 75.0°F 74.7°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 73.6 °F
March 74.2 °F
January 74.6 °F
Rainiest months:
March 2 days
January 2 days
February 2 days
Windiest months:
July 11.7 mph
June 10.9 mph
May 10.8 mph

Kauai on a weather map

Kauai
+77°F
W 12 mph
Feels like: +81°F
Precip.: 100%
Places in USA:
Name
°F
+77°F
+79°F
+79°F
+97°F
+72°F
+84°F
+84°F
+75°F
+81°F
+64°F
+72°F
+84°F
+88°F
+82°F
+59°F
24 Hours Forecast
Kauai
Local time: 12:18
May 16, saturday
1500
77°F
W
13 mph
1800
75°F
W
12 mph
2100
73°F
W
9 mph
May 17, sunday
0000
73°F
W
9 mph
0300
73°F
W
7 mph
0600
73°F
W
8 mph
0900
75°F
W
9 mph
1200
79°F
W
12 mph
Units of measurement: °C / °F