World Resorts USA Kauai Weather

Kauai Sea Temperature in April

Average sea water temperature in April:
+75.8°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:
2025
2024
2023

The average sea water temperature in April of 2025 was 74.9°F. The highest and lowest sea temperatures during the month were 75.7°F and 74.3°F.

Monthly sea water temperature in Kauai, °F

Which USA resorts have warmest sea in April?

Place name April 2025 April 2024
Everglades 78.8°F 78.0°F
Key Largo 78.5°F 77.3°F
West Palm Beach 78.3°F 77.5°F
Miami Beach 78.3°F 77.1°F
Kailua Kona 78.1°F 76.9°F
Fort Lauderdale 78.0°F 76.9°F
Key West 78.0°F 77.6°F
Miami 77.9°F 76.9°F
Honolulu 77.4°F 76.2°F
Hawaii 77.3°F 76.1°F
Marco Island 77.3°F 76.6°F
Cape Coral 77.2°F 76.3°F
Naples 77.0°F 76.3°F
Kahului 76.8°F 75.6°F
Tampa 76.6°F 74.1°F
Maui 76.6°F 75.4°F
Oahu 76.4°F 75.0°F
St. Petersburg 76.3°F 74.2°F
Sarasota 76.0°F 74.3°F
Siesta Key 75.7°F 74.3°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:
January 2 days
March 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
+68°F
NW 9 mph
Feels like: +68°F
Precip.: 100%
Places in USA:
Name
°F
+46°F
+72°F
+72°F
+61°F
+57°F
+75°F
+75°F
+64°F
+39°F
+59°F
+50°F
+72°F
+72°F
+57°F
+43°F
24 Hours Forecast
Kauai
Local time: 03:06
April 06, monday
0600
68°F
NW
8 mph
0900
72°F
W
11 mph
1200
73°F
W
11 mph
1500
73°F
NW
7 mph
1800
73°F
NW
9 mph
2100
70°F
NW
8 mph
April 07, tuesday
0000
70°F
NW
7 mph
0300
68°F
NE
5 mph
Units of measurement: °C / °F