Current sea water temperature:
+63.5°F
| Minimum sea water temperature in February: | 74.3°F |
| Maximum sea water temperature in February: | 55.8°F |
| Average sea water temperature in February: | 65.5°F |
| more information | |
14 days
forecast
forecast
| Siesta Key |
monthly
weather
weather
| Siesta Key |
Sea water temperature for the last 10 days:
| February 25 | 63.5°F | February 20 | 63.3°F |
| February 24 | 64.9°F | February 19 | 63.1°F |
| February 23 | 66.2°F | February 18 | 62.2°F |
| February 22 | 66.6°F | February 17 | 61.5°F |
| February 21 | 64.9°F | February 16 | 62.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Siesta Key?
Based on the data about daily sea water temperature for the last three years the warmest sea in Siesta Key was noticed in August, July and September.
Monthly Sea Temperatures in Siesta Key, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 88.6°F. The highest and lowest sea temperatures during the month were 90.1°F and 86.7°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 89.1°F and 85.6°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 84.9°F. The highest and lowest sea temperatures during the month were 86.7°F and 83.3°F.
current
weather
weather
| Siesta Key |
weather in
March
March
| Siesta Key |
Best time for vacation in Siesta Key
Siesta Key on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Siesta Key
Local time: 02:03
February 26, thursday
0300
48°F
W
7 mph
7 mph
0600
50°F
NW
9 mph
9 mph
0900
52°F
NW
9 mph
9 mph
1200
63°F
N
10 mph
10 mph
1500
66°F
N
11 mph
11 mph
1800
68°F
N
9 mph
9 mph
2100
64°F
N
6 mph
6 mph
February 27, friday
0000
64°F
N
7 mph
7 mph
