World Resorts USA Oahu Weather

Oahu Sea Temperature in December

Average sea water temperature in December:
+77.4°F
Minimum sea water temperature in December: 79.0°F
Maximum sea water temperature in December: 75.9°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 77.1°F. The highest and lowest sea temperatures during the month were 77.9°F and 75.9°F.

Monthly sea water temperature in Oahu, °F

Which USA resorts have warmest sea in December?

Place name December 2025 December 2024
Kailua Kona 79.2°F 78.3°F
West Palm Beach 79.0°F 78.4°F
Fort Lauderdale 78.7°F 77.6°F
Honolulu 78.6°F 78.3°F
Hawaii 78.5°F 78.3°F
Kahului 78.3°F 78.0°F
Kauai 78.2°F 76.0°F
Maui 78.0°F 77.8°F
Miami Beach 77.4°F 75.9°F
Oahu 77.1°F 77.2°F
Key Largo 76.3°F 73.1°F
Hialeah 76.2°F 74.3°F
Key West 75.9°F 72.6°F
Miami 75.5°F 73.0°F
Everglades 73.7°F 69.7°F
Marco Island 71.8°F 68.0°F
Naples 71.5°F 67.7°F
Cape Coral 71.2°F 67.8°F
Cocoa Beach 69.7°F 66.6°F
Siesta Key 69.3°F 65.6°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 74.8 °F
March 75.7 °F
January 76.0 °F
Rainiest months:
March 1 day
December 1 day
February 1 day
Windiest months:
July 13.0 mph
May 11.8 mph
June 11.7 mph

Oahu on a weather map

Oahu
+79°F
W 6 mph
Feels like: +81°F
Precip.: 78%
Places in USA:
Name
°F
+57°F
+77°F
+77°F
+72°F
+66°F
+77°F
+81°F
+73°F
+52°F
+63°F
+61°F
+79°F
+82°F
+81°F
+50°F
24 Hours Forecast
Oahu
Local time: 11:19
April 26, sunday
1200
79°F
W
6 mph
1500
77°F
SW
7 mph
1800
73°F
SW
8 mph
2100
72°F
SW
7 mph
April 27, monday
0000
72°F
W
8 mph
0300
70°F
W
6 mph
0600
70°F
W
5 mph
0900
73°F
W
8 mph
Units of measurement: °C / °F