Measurements:
°C
°F
Maui
78°F
W 7 mph
Feels like: 82°F
Precip: 7%
World Resorts USA Maui Weather

Maui Sea Water Temperature

Current Sea Water Temperature:
+82.6°F
Maximum Sea Water Temperature in August: 86.6°F
Minimum Sea Water Temperature in August: 80.0°F
Average water temperature in August: 82.6°F

Sea Water Temperature for the Last 10 Days:

August 05 82.6°F July 31 83.4°F
August 04 82.2°F July 30 83.0°F
August 03 82.4°F July 29 82.4°F
August 02 82.6°F July 28 82.2°F
August 01 82.8°F July 27 82.2°F

When is the Warmest Sea for Maui?

According to our data for the last three years for Maui 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 Maui was 83.2°F. The maximum and minimum values were 82.8°F and 83.6°F respectively.

Sea Water Temperature in October

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Maui was 83.2°F. The maximum and minimum values were 82.4°F and 84.2°F respectively.

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Maui was 82.8°F. The maximum and minimum values were 82.2°F and 83.2°F respectively.

Best Time to Visit Maui
The most sunny months:
January 14 days
October 14 days
August 14 days
The most warm months:
August 81.8 °F
September 81.8 °F
July 81.0 °F
Warmest sea temperature:
September 83.3 °F
October 83.3 °F
August 82.6 °F
The most cold months:
February 74.2 °F
March 74.5 °F
January 74.7 °F
The most rainy months:
October 4 days
April 4 days
February 4 days
The most windy months:
July 14 mph
June 13 mph
August 12 mph

Maui on the Weather Map

USA Resorts:
NAME
Boston +94
Chicago +82
Hawaii +82
Houston +102
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
Maui
Local time: 07:37
05 aug, wednesday
0900 78°F
W
7 mph
1200 80°F
W
8 mph
1500 78°F
SW
8 mph
1800 78°F
SW
8 mph
2100 76°F
W
7 mph
06 aug, thursday
0000 74°F
W
7 mph
0300 74°F
W
9 mph
0600 74°F
W
9 mph