Current sea water temperature:
+70.7°F
| Minimum sea water temperature in December: | 76.5°F |
| Maximum sea water temperature in December: | 62.2°F |
| Average sea water temperature in December: | 69.8°F |
| more information | |
14 days
forecast
forecast
| Sanibel Island |
monthly
weather
weather
| Sanibel Island |
Sea water temperature for the last 10 days:
| December 30 | 70.7°F | December 25 | 70.5°F |
| December 29 | 70.7°F | December 24 | 70.5°F |
| December 28 | 70.2°F | December 23 | 70.2°F |
| December 27 | 70.0°F | December 22 | 70.2°F |
| December 26 | 70.0°F | December 21 | 70.2°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
January
January
| 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: 18:24
December 30, tuesday
2100
61°F
S
17 mph
17 mph
December 31, wednesday
0000
57°F
S
16 mph
16 mph
0300
54°F
S
14 mph
14 mph
0600
50°F
S
16 mph
16 mph
0900
50°F
S
14 mph
14 mph
1200
57°F
S
11 mph
11 mph
1500
63°F
SE
12 mph
12 mph
1800
63°F
SE
14 mph
14 mph
