World Resorts USA Hawaii Weather

Hawaii Sea Temperature in August

Average sea water temperature in August:
+80.2°F
Minimum sea water temperature in August: 83.5°F
Maximum sea water temperature in August: 77.5°F

Daily sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 80.6°F. The highest and lowest sea temperatures during the month were 81.3°F and 79.7°F.

Monthly sea water temperature in Hawaii, °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
Islamorada 88.8°F 87.3°F
Key West 88.8°F 87.8°F
Key Largo 88.7°F 87.3°F
Marco Island 88.7°F 87.1°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
Galveston Island 87.8°F 88.5°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

Best time for vacation in Hawaii

Sunniest months:
January 15 days
August 15 days
June 14 days
Warmest months:
August 83.2 °F
September 82.9 °F
July 82.3 °F
Warmest sea temp:
September 80.7 °F
October 80.6 °F
August 80.2 °F
Coldest months:
February 76.2 °F
March 76.3 °F
January 76.6 °F
Rainiest months:
February 3 days
March 2 days
October 2 days
Windiest months:
July 17.0 mph
August 15.8 mph
June 15.7 mph

Hawaii on a weather map

Hawaii
+73°F
W 15 mph
Feels like: +77°F
Precip.: 84%
Places in USA:
Name
°F
+34°F
+73°F
+73°F
+46°F
+59°F
+61°F
+64°F
+64°F
+25°F
+63°F
+52°F
+59°F
+57°F
+46°F
+16°F
24 Hours Forecast
Hawaii
Local time: 05:45
January 01, thursday
0600
73°F
W
15 mph
0900
75°F
W
15 mph
1200
75°F
W
17 mph
1500
75°F
SW
16 mph
1800
73°F
SW
18 mph
2100
73°F
W
21 mph
January 02, friday
0000
73°F
W
21 mph
0300
72°F
W
22 mph

Best place for vacation:

Units of measurement: °C / °F