Measurements:
°C
°F
Hawaii
80°F
SW 22 mph
Feels like: 84°F
Precip: 17%
World Resorts USA Hawaii Weather

Hawaii Sea Water Temperature

Current Sea Water Temperature:
+83.0°F
Maximum Sea Water Temperature in June: 83.8°F
Minimum Sea Water Temperature in June: 79.0°F
Average water temperature in June: 81.7°F

Sea Water Temperature for the Last 10 Days:

June 24 83.0°F June 19 82.4°F
June 23 83.2°F June 18 82.2°F
June 22 83.2°F June 17 82.0°F
June 21 83.0°F June 16 82.2°F
June 20 82.8°F June 15 82.0°F

When is the Warmest Sea for Hawaii?

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

Average Water Temperature by Month, °F

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Hawaii was 83.9°F. The maximum and minimum values were 83.4°F and 84.6°F respectively.

Sea Water Temperature in October

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Hawaii was 84.0°F. The maximum and minimum values were 83.0°F and 84.4°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Hawaii was 84.0°F. The maximum and minimum values were 83.0°F and 84.8°F respectively.

Best Time to Visit Hawaii
The most sunny months:
January 15 days
August 15 days
June 14 days
The most warm months:
August 86.9 °F
September 86.6 °F
July 85.9 °F
Warmest sea temperature:
September 84.2 °F
October 84.0 °F
August 83.6 °F
The most cold months:
February 78.9 °F
March 79.1 °F
January 79.4 °F
The most rainy months:
March 3 days
February 3 days
October 2 days
The most windy months:
July 17 mph
August 16 mph
June 16 mph

Hawaii on the Weather Map

USA Resorts:
NAME
Chicago +66
Hawaii +80
Honolulu +80
Houston +82
Las Vegas +96
Los Angeles +66
Maui +74
Miami +84
Miami Beach +88
Myrtle Beach +80
New York +72
San Diego +68
San Francisco +56
Sarasota +84
Tampa +84
24 Hours Weather Forecast
Hawaii
Local time: 17:42
24 jun, wednesday
1800 80°F
SW
22 mph
2100 80°F
SW
22 mph
25 jun, thursday
0000 78°F
SW
23 mph
0300 78°F
W
21 mph
0600 78°F
W
21 mph
0900 80°F
W
21 mph
1200 82°F
W
20 mph
1500 82°F
W
22 mph

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