Current sea water temperature:
+87.8°F
| Minimum sea water temperature in September: | 89.8°F |
| Maximum sea water temperature in September: | 83.7°F |
| Average sea water temperature in September: | 86.3°F |
| more information | |
14 days
forecast
forecast
| Sanibel Island |
monthly
weather
weather
| Sanibel Island |
Sea water temperature for the last 10 days:
| September 2 | 87.8°F | August 28 | 89.2°F |
| September 1 | 87.8°F | August 27 | 89.4°F |
| August 31 | 88.2°F | August 26 | 89.2°F |
| August 30 | 88.5°F | August 25 | 88.9°F |
| August 29 | 88.9°F | August 24 | 88.7°F |
Monthly sea water temperature, °F
When is the warmest sea in Sanibel Island?
Based on the data about daily sea water temperature for the last three years the warmest sea in Sanibel Island was noticed in August, July and September.
Monthly Sea Temperatures in Sanibel Island, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 88.0°F. The highest and lowest sea temperatures during the month were 89.4°F and 86.4°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 88.1°F. The highest and lowest sea temperatures during the month were 89.2°F and 86.5°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 85.7°F. The highest and lowest sea temperatures during the month were 87.6°F and 83.8°F.
current
weather
weather
| Sanibel Island |
weather in
September
September
| Sanibel Island |
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: 09:47
September 02, wednesday
1200
88°F
N
7 mph
7 mph
1500
88°F
NE
9 mph
9 mph
1800
86°F
E
7 mph
7 mph
2100
84°F
SW
7 mph
7 mph
September 03, thursday
0000
84°F
W
6 mph
6 mph
0300
82°F
W
8 mph
8 mph
0600
82°F
NW
6 mph
6 mph
0900
84°F
N
6 mph
6 mph
