World Resorts USA Kauai Weather

Kauai Sea Temperature in May

Average sea water temperature in May:
+76.8°F
Minimum sea water temperature in May: 78.8°F
Maximum sea water temperature in May: 74.5°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 76.3°F. The highest and lowest sea temperatures during the month were 76.8°F and 75.6°F.

Monthly sea water temperature in Kauai, °F

Which USA resorts have warmest sea in May?

Place name May 2026 May 2025
Everglades 84.6°F 84.5°F
Key West 84.3°F 83.5°F
Key Largo 84.0°F 83.5°F
Miami 83.3°F 82.6°F
Cape Coral 83.3°F 83.4°F
Marco Island 83.2°F 83.5°F
Hialeah 82.9°F 82.3°F
Naples 82.9°F 83.5°F
Miami Beach 82.7°F 82.4°F
St. Petersburg 82.0°F 82.6°F
Tampa 81.9°F 82.7°F
West Palm Beach 81.7°F 81.1°F
Fort Lauderdale 81.7°F 81.1°F
Clearwater Beach 81.5°F 82.6°F
Sarasota 81.5°F 82.7°F
Siesta Key 81.3°F 82.5°F
Cocoa Beach 80.4°F 79.4°F
Corpus Christi 79.5°F 80.9°F
Galveston 78.4°F 79.6°F
Orlando 78.4°F 77.2°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
+75°F
W 14 mph
Feels like: +79°F
Precip.: 73%
Places in USA:
Name
°F
+75°F
+75°F
+91°F
+66°F
+73°F
+81°F
+72°F
+72°F
+63°F
+63°F
+63°F
+79°F
+77°F
+77°F
+68°F
24 Hours Forecast
Kauai
Local time: 17:34
June 05, friday
1800
75°F
W
12 mph
2100
73°F
W
13 mph
June 06, saturday
0000
73°F
W
12 mph
0300
72°F
W
13 mph
0600
72°F
W
12 mph
0900
75°F
W
12 mph
1200
77°F
W
13 mph
1500
77°F
W
12 mph
Units of measurement: °C / °F