Average sea water temperature in September:
+86.6°F
| Minimum sea water temperature in September: | 88.9°F |
| Maximum sea water temperature in September: | 84.2°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 87.1°F. The highest and lowest sea temperatures during the month were 88.9°F and 84.2°F.
sea water
temperature
temperature
| Marco Island |
monthly
weather
weather
| Marco Island |
current
weather
weather
| Marco Island |
14 days
forecast
forecast
| Marco Island |
Monthly sea water temperature in Marco Island, °F
Which USA resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Key West | 87.8°F | 86.9°F |
| Key Largo | 87.2°F | 86.6°F |
| Naples | 87.0°F | 86.1°F |
| Galveston | 87.0°F | 85.5°F |
| Siesta Key | 86.9°F | 84.9°F |
| Houston | 86.9°F | 84.9°F |
| Corpus Christi | 86.8°F | 85.8°F |
| Sarasota | 86.8°F | 84.8°F |
| West Palm Beach | 86.6°F | 86.2°F |
| Fort Lauderdale | 86.6°F | 86.4°F |
| New Orleans | 86.4°F | 84.3°F |
| Cape Coral | 86.3°F | 85.2°F |
| Orange Beach | 86.0°F | 84.0°F |
| Pensacola Beach | 85.9°F | 83.9°F |
| Tampa | 85.9°F | 84.3°F |
| Clearwater Beach | 85.9°F | 84.0°F |
| Miami Beach | 85.8°F | 86.1°F |
| Panama City Beach | 85.8°F | 83.4°F |
| Fort Walton Beach | 85.7°F | 83.3°F |
| Pensacola | 85.7°F | 83.9°F |
Best time for vacation in Marco Island
Marco Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Marco Island
Local time: 08:53
October 14, wednesday
0900
77°F
SW
11 mph
11 mph
1200
84°F
W
8 mph
8 mph
1500
86°F
E
2 mph
2 mph
1800
86°F
SW
9 mph
9 mph
2100
82°F
SW
12 mph
12 mph
October 15, thursday
0000
81°F
W
12 mph
12 mph
0300
79°F
W
11 mph
11 mph
0600
77°F
W
11 mph
11 mph
