23.09
wed
wed
Day
82°F
E 3 mph
Precip.
20%
20%
Night
82°F
W 6 mph
Precip.
22%
22%
24.09
thu
thu
Day
84°F
S 6 mph
Precip.
7%
7%
Night
81°F
SW 14 mph
Precip.
26%
26%
25.09
fri
fri
Day
84°F
SW 14 mph
Precip.
5%
5%
Night
79°F
SW 15 mph
Precip.
18%
18%
26.09
sat
sat
Day
82°F
SW 8 mph
Precip.
14%
14%
Night
81°F
SW 10 mph
Precip.
4%
4%
27.09
sun
sun
Day
82°F
N 2 mph
Precip.
13%
13%
Night
81°F
S 5 mph
Precip.
15%
15%
28.09
mon
mon
Day
82°F
NW 9 mph
Precip.
75%
75%
Night
79°F
NE 9 mph
Precip.
66%
66%
29.09
tue
tue
Day
82°F
NW 9 mph
Precip.
17%
17%
Night
81°F
W 7 mph
Precip.
21%
21%
sea water
temperature
temperature
| Marco Island |
monthly
weather
weather
| Marco Island |
current
weather
weather
| Marco Island |
14 days
forecast
forecast
| Marco Island |
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.
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.
Air temperature in Marco Island, °F
Precipitation total in Marco Island, in.
* Charts above show average data for the last 3 years.
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: 02:00
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
