World Resorts USA Maui Weather

Maui Sea Temperature in September

Average sea water temperature in September:
+80.0°F
Minimum sea water temperature in September: 83.8°F
Maximum sea water temperature in September: 76.8°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 79.9°F. The highest and lowest sea temperatures during the month were 80.2°F and 79.5°F.

Monthly sea water temperature in Maui, °F

Which USA resorts have warmest sea in September?

Place name September 2025 September 2024
Key West 86.9°F 87.4°F
Islamorada 86.7°F 87.3°F
Key Largo 86.6°F 87.1°F
Fort Lauderdale 86.4°F 86.4°F
West Palm Beach 86.2°F 86.4°F
Everglades 86.2°F 87.0°F
Miami Beach 86.1°F 86.3°F
Naples 86.1°F 87.2°F
Marco Island 86.0°F 87.2°F
South Padre Island 86.0°F 85.8°F
Corpus Christi 85.8°F 84.7°F
Miami 85.8°F 86.0°F
Sanibel Island 85.7°F 87.0°F
Galveston Island 85.5°F 84.4°F
Galveston 85.5°F 83.7°F
Cape Coral 85.2°F 86.5°F
Houston 84.9°F 83.4°F
Siesta Key 84.9°F 86.8°F
Sarasota 84.8°F 86.7°F
Cocoa Beach 84.6°F 85.2°F

Best time for vacation in Maui

Sunniest months:
January 15 days
August 14 days
July 14 days
Warmest months:
August 78.7 °F
September 78.7 °F
July 78.1 °F
Warmest sea temp:
September 80.0 °F
October 79.9 °F
August 79.4 °F
Coldest months:
February 71.9 °F
March 72.2 °F
January 72.4 °F
Rainiest months:
October 4 days
April 4 days
February 4 days
Windiest months:
July 13.9 mph
June 13.7 mph
August 12.9 mph

Maui on a weather map

Maui
+68°F
W 14 mph
Feels like: +68°F
Precip.: 67%
Places in USA:
Name
°F
+45°F
+75°F
+75°F
+54°F
+57°F
+81°F
+81°F
+68°F
+39°F
+59°F
+55°F
+79°F
+75°F
+77°F
+48°F
24 Hours Forecast
Maui
Local time: 07:36
December 23, tuesday
0900
68°F
W
14 mph
1200
70°F
W
16 mph
1500
70°F
W
14 mph
1800
66°F
W
14 mph
2100
66°F
W
14 mph
December 24, wednesday
0000
66°F
W
13 mph
0300
64°F
W
12 mph
0600
64°F
W
13 mph
Units of measurement: °C / °F