World Resorts USA Oahu Weather

Oahu Sea Temperature in May

Average sea water temperature in May:
+76.7°F
Minimum sea water temperature in May: 78.3°F
Maximum sea water temperature in May: 74.8°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 75.9°F. The highest and lowest sea temperatures during the month were 76.8°F and 75.0°F.

Monthly sea water temperature in Oahu, °F

Which USA resorts have warmest sea in May?

Place name May 2026 May 2025
Everglades 84.8°F 84.5°F
Key Largo 84.1°F 83.5°F
Key West 84.0°F 83.5°F
Miami 82.9°F 82.6°F
Cape Coral 82.6°F 83.4°F
Hialeah 82.4°F 82.3°F
Marco Island 82.1°F 83.5°F
Miami Beach 82.1°F 82.4°F
Naples 81.9°F 83.5°F
Fort Lauderdale 80.9°F 81.1°F
West Palm Beach 80.9°F 81.1°F
Tampa 80.4°F 82.7°F
St. Petersburg 80.3°F 82.6°F
Sarasota 80.0°F 82.7°F
Siesta Key 79.8°F 82.5°F
Clearwater Beach 79.8°F 82.6°F
Cocoa Beach 78.7°F 79.4°F
Corpus Christi 78.4°F 80.9°F
Hilo 78.1°F 77.7°F
Honolulu 78.0°F 78.1°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
April 1 day
December 1 day
Windiest months:
July 13.0 mph
May 11.8 mph
June 11.7 mph

Oahu on a weather map

Oahu
+77°F
W 4 mph
Feels like: +81°F
Precip.: 100%
Places in USA:
Name
°F
+79°F
+77°F
+77°F
+97°F
+72°F
+84°F
+84°F
+75°F
+84°F
+64°F
+73°F
+84°F
+88°F
+82°F
+68°F
24 Hours Forecast
Oahu
Local time: 13:28
May 16, saturday
1500
79°F
SW
3 mph
1800
75°F
SW
2 mph
2100
75°F
W
1 mph
May 17, sunday
0000
73°F
SW
2 mph
0300
72°F
SW
4 mph
0600
72°F
SW
6 mph
0900
75°F
W
9 mph
1200
79°F
W
11 mph
Units of measurement: °C / °F