Measurements:
°C
°F
Maui
66°F
W 3 mph
Feels like: 66°F
Precip: 16%
World Resorts USA Maui Weather

Maui Sea Water Temperature

Current Sea Water Temperature:
+83.8°F
Maximum Sea Water Temperature in September: 87.6°F
Minimum Sea Water Temperature in September: 79.8°F
Average water temperature in September: 83.3°F

Sea Water Temperature for the Last 10 Days:

September 15 83.8°F September 10 83.4°F
September 14 84.2°F September 09 82.8°F
September 13 83.4°F September 08 82.6°F
September 12 83.8°F September 07 82.6°F
September 11 83.4°F September 06 82.6°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: 2026 2025 2024

The average sea surface temperature in September 2026 for Maui was 83.2°F. The maximum and minimum values were 82.6°F and 84.2°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Maui was 82.9°F. The maximum and minimum values were 82.2°F and 83.6°F respectively.

Best Time to Visit Maui
The most sunny months:
January 14 days
October 14 days
August 13 days
The most warm months:
September 81.8 °F
August 81.4 °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
November 12 mph

Maui on the Weather Map

USA Resorts:
NAME
Boston +62
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +72
Maui +66
Miami +88
Myrtle Beach +78
New York +66
Panama City Beach +90
San Diego +70
San Francisco +60
Santa Monica +72
Sarasota +86
Washington +66
24 Hours Weather Forecast
Maui
Local time: 03:03
15 sep, tuesday
0600 66°F
W
4 mph
0900 70°F
W
6 mph
1200 74°F
W
5 mph
1500 72°F
W
4 mph
1800 68°F
W
5 mph
2100 66°F
W
6 mph
16 sep, wednesday
0000 64°F
W
8 mph
0300 64°F
W
8 mph