World Resorts USA Oahu Weather

Oahu Sea Temperature in October

Average sea water temperature in October:
+80.2°F
Minimum sea water temperature in October: 82.0°F
Maximum sea water temperature in October: 78.4°F

Daily sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 79.8°F. The highest and lowest sea temperatures during the month were 80.2°F and 79.0°F.

Monthly sea water temperature in Oahu, °F

Which USA resorts have warmest sea in October?

Place name October 2025 October 2024
South Padre Island 84.0°F 82.4°F
Key West 83.8°F 82.9°F
Fort Lauderdale 83.5°F 83.0°F
Miami Beach 83.4°F 83.4°F
Islamorada 83.1°F 82.9°F
Key Largo 83.0°F 83.1°F
Miami 82.7°F 82.9°F
Everglades 82.5°F 82.6°F
Corpus Christi 82.2°F 80.6°F
Naples 81.9°F 81.6°F
Sanibel Island 81.6°F 81.3°F
Kauai 81.3°F 79.2°F
Cape Coral 81.1°F 81.2°F
Kailua Kona 80.9°F 80.6°F
Honolulu 80.7°F 80.6°F
Hawaii 80.6°F 80.5°F
Siesta Key 80.4°F 80.7°F
Houston 80.4°F 78.8°F
Sarasota 80.2°F 80.5°F
Maui 79.8°F 79.4°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 81.2 °F
Warmest sea temp:
October 80.2 °F
September 80.1 °F
August 79.5 °F
Coldest months:
February 75.3 °F
March 76.0 °F
January 76.2 °F
Rainiest months:
March 1 day
December 1 day
April 1 day
Windiest months:
July 13.0 mph
May 11.8 mph
June 11.7 mph

Oahu on a weather map

Oahu
+72°F
W 3 mph
Feels like: +72°F
Precip.: 0%
Places in USA:
Name
°F
+37°F
+75°F
+75°F
+50°F
+57°F
+70°F
+75°F
+70°F
+34°F
+57°F
+57°F
+55°F
+55°F
+70°F
+25°F
24 Hours Forecast
Oahu
Local time: 22:49
December 21, sunday
0000
72°F
W
3 mph
0300
70°F
SW
3 mph
0600
70°F
W
4 mph
0900
73°F
W
6 mph
1200
77°F
W
9 mph
1500
77°F
W
9 mph
1800
73°F
W
6 mph
2100
73°F
W
8 mph
Units of measurement: °C / °F