Current sea water temperature:
+86.0°F
| Minimum sea water temperature in September: | 88.9°F |
| Maximum sea water temperature in September: | 84.2°F |
| Average sea water temperature in September: | 86.7°F |
| more information | |
14 days
forecast
forecast
| Marco Island |
monthly
weather
weather
| Marco Island |
Sea water temperature for the last 10 days:
| September 22 | 86.0°F | September 17 | 87.8°F |
| September 21 | 86.0°F | September 16 | 88.2°F |
| September 20 | 86.5°F | September 15 | 87.8°F |
| September 19 | 86.5°F | September 14 | 88.0°F |
| September 18 | 87.1°F | September 13 | 88.2°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 88.5°F. The highest and lowest sea temperatures during the month were 90.0°F and 86.7°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 88.0°F. The highest and lowest sea temperatures during the month were 89.2°F and 86.9°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 87.8°F. The highest and lowest sea temperatures during the month were 88.9°F and 86.0°F.
current
weather
weather
| Marco Island |
weather in
September
September
| 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: 01:23
September 23, wednesday
0300
81°F
NW
10 mph
10 mph
0600
81°F
W
7 mph
7 mph
0900
81°F
W
6 mph
6 mph
1200
82°F
E
3 mph
3 mph
1500
84°F
E
9 mph
9 mph
1800
84°F
SE
7 mph
7 mph
2100
82°F
S
5 mph
5 mph
September 24, thursday
0000
82°F
W
6 mph
6 mph
