Measurements:
°C
°F
Oahu
74°F
W 6 mph
Feels like: 74°F
Precip: 100%
World Resorts USA Oahu Weather

Oahu Sea Water Temperature

Current Sea Water Temperature:
+77.8°F
Maximum Sea Water Temperature in April: 80.0°F
Minimum Sea Water Temperature in April: 77.0°F
Average water temperature in April: 78.8°F

Sea Water Temperature for the Last 10 Days:

April 28 77.8°F April 23 78.6°F
April 27 77.8°F April 22 78.4°F
April 26 77.8°F April 21 78.4°F
April 25 78.0°F April 20 78.6°F
April 24 78.4°F April 19 78.8°F

When is the Warmest Sea for Oahu?

According to our data for the last three years for Oahu the highest average sea water temperature was in October, September and August.

Average Water Temperature by Month, °F

Sea Water Temperature in October

Select Year: 2023 2022 2021

The average sea surface temperature in October 2023 for Oahu was 83.4°F. The maximum and minimum values were 82.6°F and 84.0°F respectively.

Sea Water Temperature in September

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for Oahu was 82.9°F. The maximum and minimum values were 82.4°F and 83.4°F respectively.

Sea Water Temperature in August

Select Year: 2023 2022 2021

The average sea surface temperature in August 2023 for Oahu was 82.6°F. The maximum and minimum values were 82.2°F and 83.0°F respectively.

Best Time to Visit Oahu
The most sunny months:
January 9 days
September 7 days
August 6 days
The most warm months:
September 86.3 °F
August 86.1 °F
July 85.2 °F
Warmest sea temperature:
October 83.6 °F
September 83.5 °F
August 83.0 °F
The most cold months:
February 77.8 °F
March 78.8 °F
January 79.2 °F
The most rainy months:
November 1 day
December 1 day
March 1 day
The most windy months:
July 13 mph
February 12 mph
August 11 mph

Oahu on the Weather Map

USA Resorts:
NAME
Boston +64
Chicago +60
Hawaii +76
Honolulu +76
Houston +82
Las Vegas +70
Los Angeles +64
Miami +80
New York +64
Orlando +84
San Diego +62
San Francisco +56
Sarasota +84
Tampa +84
Washington +80
24 Hours Weather Forecast
Oahu
Local time: 04:30
28 apr, sunday
0600 74°F
W
6 mph
0900 80°F
W
6 mph
1200 82°F
W
6 mph
1500 78°F
W
4 mph
1800 76°F
SW
9 mph
2100 74°F
W
9 mph
29 apr, monday
0000 72°F
W
8 mph
0300 76°F
W
9 mph