World Resorts USA Hawaii Weather

Hawaii Sea Temperature in May

Average sea water temperature in May:
+77.5°F
Minimum sea water temperature in May: 79.5°F
Maximum sea water temperature in May: 75.4°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 77.9°F. The highest and lowest sea temperatures during the month were 78.6°F and 77.4°F.

Monthly sea water temperature in Hawaii, °F

Which USA resorts have warmest sea in May?

Place name May 2026 May 2025
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
Naples 82.9°F 83.5°F
Miami Beach 82.7°F 82.4°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
Port St. Lucie 80.8°F 78.9°F
Cocoa Beach 80.4°F 79.4°F
Corpus Christi 79.5°F 80.9°F
South Padre Island 79.1°F 80.0°F
Galveston 78.4°F 79.6°F
Orlando 78.4°F 77.2°F
Houston 78.4°F 79.5°F
Daytona Beach 78.1°F 76.0°F

Best time for vacation in Hawaii

Sunniest months:
January 15 days
August 14 days
June 14 days
Warmest months:
August 83.0 °F
September 82.7 °F
July 82.2 °F
Warmest sea temp:
September 80.8 °F
October 80.6 °F
August 80.2 °F
Coldest months:
February 76.0 °F
March 76.2 °F
January 76.5 °F
Rainiest months:
March 3 days
February 3 days
October 2 days
Windiest months:
July 17.1 mph
August 16.0 mph
June 15.6 mph

Hawaii on a weather map

Hawaii
+79°F
N 12 mph
Feels like: +82°F
Precip.: 17%
Places in USA:
Name
°F
+61°F
+70°F
+79°F
+95°F
+91°F
+86°F
+77°F
+75°F
+68°F
+79°F
+66°F
+82°F
+77°F
+88°F
+72°F
24 Hours Forecast
Hawaii
Local time: 13:29
October 07, wednesday
1500
79°F
N
7 mph
1800
79°F
N
7 mph
2100
77°F
N
4 mph
October 08, thursday
0000
77°F
N
6 mph
0300
77°F
N
10 mph
0600
77°F
N
14 mph
0900
79°F
N
16 mph
1200
81°F
N
17 mph

Best place for vacation:

Units of measurement: °C / °F