23.09
wed
wed
Day
84°F
NE 3 mph
Precip.
17%
17%
Night
82°F
W 8 mph
Precip.
21%
21%
24.09
thu
thu
Day
86°F
S 8 mph
Precip.
4%
4%
Night
79°F
SW 16 mph
Precip.
22%
22%
25.09
fri
fri
Day
84°F
SW 12 mph
Precip.
4%
4%
Night
79°F
SW 15 mph
Precip.
17%
17%
26.09
sat
sat
Day
82°F
SW 7 mph
Precip.
13%
13%
Night
81°F
SW 11 mph
Precip.
3%
3%
27.09
sun
sun
Day
82°F
NW 3 mph
Precip.
13%
13%
Night
81°F
SW 6 mph
Precip.
15%
15%
28.09
mon
mon
Day
84°F
N 7 mph
Precip.
9%
9%
Night
79°F
N 16 mph
Precip.
65%
65%
29.09
tue
tue
Day
81°F
NW 8 mph
Precip.
61%
61%
Night
79°F
W 7 mph
Precip.
37%
37%
sea water
temperature
temperature
| Sanibel Island |
monthly
weather
weather
| Sanibel Island |
current
weather
weather
| Sanibel Island |
14 days
forecast
forecast
| Sanibel 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 89.1°F and 85.8°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 81.6°F. The highest and lowest sea temperatures during the month were 84.9°F and 79.0°F.
Air temperature in Sanibel Island, °F
Precipitation total in Sanibel Island, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Sanibel Island
Sanibel Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Sanibel Island
Local time: 02:01
September 23, wednesday
0300
82°F
NW
11 mph
11 mph
0600
81°F
NW
9 mph
9 mph
0900
81°F
W
7 mph
7 mph
1200
84°F
NE
3 mph
3 mph
1500
84°F
E
7 mph
7 mph
1800
84°F
SE
6 mph
6 mph
2100
84°F
SW
6 mph
6 mph
September 24, thursday
0000
82°F
W
8 mph
8 mph
