World Resorts USA Oahu Weather

Oahu Sea Temperature in July

Average sea water temperature in July:
+78.6°F
Minimum sea water temperature in July: 80.4°F
Maximum sea water temperature in July: 77.4°F

Daily sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 78.8°F. The highest and lowest sea temperatures during the month were 80.1°F and 77.7°F.

Monthly sea water temperature in Oahu, °F

Which USA resorts have warmest sea in July?

Place name July 2026 July 2025
Key West 88.5°F 86.7°F
Clearwater Beach 87.9°F 87.1°F
Naples 87.7°F 86.6°F
Tampa 87.6°F 86.8°F
Sarasota 87.6°F 86.9°F
Siesta Key 87.6°F 86.9°F
New Orleans 87.5°F 87.4°F
Miami 87.4°F 86.3°F
Miami Beach 87.0°F 86.0°F
Bay Saint Louis 86.8°F 87.2°F
Houston 86.7°F 86.3°F
Fort Lauderdale 86.6°F 85.0°F
Hilton Head Island 86.3°F 85.7°F
St. George Island 86.3°F 86.4°F
Pensacola 86.1°F 86.9°F
Orange Beach 86.1°F 86.7°F
West Palm Beach 86.1°F 84.6°F
St. Simons Island 86.0°F 84.5°F
Panama City Beach 86.0°F 86.3°F
Santa Rosa Beach 85.9°F 86.2°F

Best time for vacation in Oahu

Sunniest months:
January 8 days
September 6 days
August 5 days
Warmest months:
September 82.3 °F
August 81.8 °F
July 81.1 °F
Warmest sea temp:
October 80.2 °F
September 80.1 °F
August 79.6 °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
June 11.3 mph

Oahu on a weather map

Oahu
+79°F
SW 6 mph
Feels like: +81°F
Precip.: 9%
Places in USA:
Name
°F
+68°F
+75°F
+79°F
+91°F
+84°F
+86°F
+72°F
+91°F
+75°F
+72°F
+64°F
+77°F
+88°F
+72°F
24 Hours Forecast
Oahu
Local time: 10:57
September 14, monday
1200
79°F
SW
6 mph
1500
79°F
W
7 mph
1800
75°F
SW
7 mph
2100
72°F
SW
4 mph
September 15, tuesday
0000
72°F
W
4 mph
0300
72°F
W
4 mph
0600
72°F
W
4 mph
0900
77°F
W
6 mph
Units of measurement: °C / °F