Current sea water temperature:
+82.4°F
| Minimum sea water temperature in May: | 87.8°F |
| Maximum sea water temperature in May: | 77.0°F |
| Average sea water temperature in May: | 82.0°F |
| more information | |
14 days
forecast
forecast
| Sanibel Island |
monthly
weather
weather
| Sanibel Island |
Sea water temperature for the last 10 days:
| May 21 | 82.4°F | May 16 | 82.9°F |
| May 20 | 82.9°F | May 15 | 83.7°F |
| May 19 | 82.8°F | May 14 | 83.7°F |
| May 18 | 83.8°F | May 13 | 82.2°F |
| May 17 | 82.4°F | May 12 | 83.5°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:
2025
2024
2023
The average sea water temperature in August of 2025 was 88.8°F. The highest and lowest sea temperatures during the month were 90.0°F and 87.3°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 86.9°F. The highest and lowest sea temperatures during the month were 89.2°F and 85.3°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
May
May
| 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: 07:59
May 21, thursday
0900
79°F
W
11 mph
11 mph
1200
82°F
NW
5 mph
5 mph
1500
84°F
NE
12 mph
12 mph
1800
81°F
N
6 mph
6 mph
2100
81°F
W
7 mph
7 mph
May 22, friday
0000
79°F
W
11 mph
11 mph
0300
79°F
W
10 mph
10 mph
0600
77°F
W
11 mph
11 mph
