World Resorts USA Oahu Weather

Oahu Sea Temperature in August

Average sea water temperature in August:
+79.6°F
Minimum sea water temperature in August: 81.1°F
Maximum sea water temperature in August: 78.3°F

Daily sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 79.5°F. The highest and lowest sea temperatures during the month were 80.2°F and 78.6°F.

Monthly sea water temperature in Oahu, °F

Which USA resorts have warmest sea in August?

Place name August 2025 August 2024
Key West 88.8°F 87.8°F
Naples 88.7°F 87.0°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
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
Fort Lauderdale 87.2°F 85.8°F
West Palm Beach 86.8°F 86.2°F
Cocoa Beach 86.8°F 84.5°F
Pensacola Beach 86.6°F 87.4°F
St. George Island 86.5°F 86.8°F
Panama City Beach 86.2°F 86.8°F
Destin 86.0°F 86.9°F
Fort Walton Beach 86.0°F 86.8°F
Santa Rosa Beach 85.9°F 86.8°F
Hilton Head Island 85.0°F 84.0°F

Best time for vacation in Oahu

Sunniest months:
January 8 days
September 6 days
August 6 days
Warmest months:
September 82.3 °F
August 82.2 °F
July 81.1 °F
Warmest sea temp:
October 80.2 °F
September 80.1 °F
August 79.5 °F
Coldest months:
February 74.8 °F
March 75.7 °F
January 76.0 °F
Rainiest months:
March 1 day
April 1 day
December 1 day
Windiest months:
July 12.7 mph
May 11.6 mph
August 11.3 mph

Oahu on a weather map

Oahu
+73°F
W 6 mph
Feels like: +77°F
Precip.: 14%
Places in USA:
Name
°F
+90°F
+82°F
+77°F
+100°F
+72°F
+91°F
+72°F
+88°F
+81°F
+70°F
+57°F
+70°F
+90°F
+97°F
+79°F
24 Hours Forecast
Oahu
Local time: 07:26
August 05, wednesday
0900
77°F
W
6 mph
1200
82°F
SW
6 mph
1500
79°F
SW
7 mph
1800
77°F
SW
8 mph
2100
75°F
SW
6 mph
August 06, thursday
0000
73°F
W
7 mph
0300
73°F
W
6 mph
0600
72°F
SW
4 mph
Units of measurement: °C / °F