Current sea water temperature:
+72.7°F
| Minimum sea water temperature in December: | 77.4°F |
| Maximum sea water temperature in December: | 64.9°F |
| Average sea water temperature in December: | 70.7°F |
| more information | |
14 days
forecast
forecast
| Marco Island |
monthly
weather
weather
| Marco Island |
Sea water temperature for the last 10 days:
| December 4 | 72.7°F | November 29 | 73.0°F |
| December 3 | 72.0°F | November 28 | 74.7°F |
| December 2 | 72.1°F | November 27 | 74.8°F |
| December 1 | 71.4°F | November 26 | 74.8°F |
| November 30 | 71.6°F | November 25 | 73.9°F |
Monthly sea water temperature, °F
When is the warmest sea in Marco Island?
Based on the data about daily sea water temperature for the last three years the warmest sea in Marco Island was noticed in August, July and September.
Monthly Sea Temperatures in Marco Island, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 88.7°F. The highest and lowest sea temperatures during the month were 90.0°F and 86.9°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 86.6°F. The highest and lowest sea temperatures during the month were 89.4°F and 84.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 86.0°F. The highest and lowest sea temperatures during the month were 88.7°F and 84.2°F.
current
weather
weather
| Marco Island |
weather in
December
December
| Marco Island |
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: 23:01
December 05, friday
0000
68°F
SW
4 mph
4 mph
0300
68°F
NW
7 mph
7 mph
0600
64°F
W
8 mph
8 mph
0900
68°F
NW
7 mph
7 mph
1200
72°F
NW
11 mph
11 mph
1500
73°F
N
7 mph
7 mph
1800
73°F
N
8 mph
8 mph
2100
72°F
NE
6 mph
6 mph
