World Resorts USA Marco Island Weather

Marco Island Sea Temperature in October

Average sea water temperature in October:
+81.8°F
Minimum sea water temperature in October: 87.1°F
Maximum sea water temperature in October: 75.7°F

Daily sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 82.0°F. The highest and lowest sea temperatures during the month were 85.5°F and 79.7°F.

Monthly sea water temperature in Marco Island, °F

Which USA resorts have warmest sea in October?

Place name October 2025 October 2024
South Padre Island 84.0°F 82.4°F
Key West 83.8°F 82.9°F
Fort Lauderdale 83.5°F 83.0°F
Miami Beach 83.4°F 83.4°F
Islamorada 83.1°F 82.9°F
Key Largo 83.0°F 83.1°F
Miami 82.7°F 82.9°F
Everglades 82.5°F 82.6°F
Corpus Christi 82.2°F 80.6°F
Naples 81.9°F 81.6°F
Sanibel Island 81.6°F 81.3°F
Kauai 81.3°F 79.2°F
Cape Coral 81.1°F 81.2°F
Kailua Kona 80.9°F 80.6°F
Honolulu 80.7°F 80.6°F
Hawaii 80.6°F 80.5°F
Siesta Key 80.4°F 80.7°F
Houston 80.4°F 78.8°F
Sarasota 80.2°F 80.5°F
Maui 79.8°F 79.4°F

Best time for vacation in Marco Island

Sunniest months:
March 19 days
April 17 days
May 15 days
Warmest months:
August 88.0 °F
July 87.8 °F
September 86.6 °F
Warmest sea temp:
August 87.5 °F
July 87.1 °F
September 86.5 °F
Coldest months:
January 69.8 °F
December 72.0 °F
February 74.1 °F
Rainiest months:
June 6 days
July 5 days
September 4 days
Windiest months:
April 10.0 mph
November 10.0 mph
October 9.9 mph

Marco Island on a weather map

Marco Island
+75°F
SE 10 mph
Feels like: +79°F
Precip.: 0%
Places in USA:
Name
°F
+45°F
+77°F
+77°F
+64°F
+66°F
+77°F
+77°F
+72°F
+36°F
+63°F
+57°F
+77°F
+75°F
+75°F
+34°F
24 Hours Forecast
Marco Island
Local time: 19:26
December 20, saturday
2100
72°F
SE
5 mph
December 21, sunday
0000
70°F
E
5 mph
0300
70°F
E
2 mph
0600
68°F
W
5 mph
0900
68°F
SW
9 mph
1200
68°F
W
7 mph
1500
70°F
SE
4 mph
1800
70°F
SE
6 mph
Units of measurement: °C / °F