Current sea water temperature:
+70.7°F
| Minimum sea water temperature in January: | 74.7°F |
| Maximum sea water temperature in January: | 61.7°F |
| Average sea water temperature in January: | 68.1°F |
| more information | |
14 days
forecast
forecast
| Marco Island |
monthly
weather
weather
| Marco Island |
Sea water temperature for the last 10 days:
| January 15 | 70.7°F | January 10 | 71.1°F |
| January 14 | 71.2°F | January 9 | 69.6°F |
| January 13 | 71.4°F | January 8 | 69.6°F |
| January 12 | 72.0°F | January 7 | 69.3°F |
| January 11 | 71.2°F | January 6 | 67.8°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
January
January
| 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: 14:23
January 15, thursday
1500
66°F
SE
29 mph
29 mph
1800
64°F
S
23 mph
23 mph
2100
59°F
S
23 mph
23 mph
January 16, friday
0000
55°F
S
19 mph
19 mph
0300
50°F
S
16 mph
16 mph
0600
46°F
SW
16 mph
16 mph
0900
48°F
SW
12 mph
12 mph
1200
55°F
SW
9 mph
9 mph
