Current sea water temperature:
+83.7°F
| Minimum sea water temperature in October: | 86.9°F |
| Maximum sea water temperature in October: | 73.8°F |
| Average sea water temperature in October: | 80.6°F |
| more information | |
14 days
forecast
forecast
| Siesta Key |
monthly
weather
weather
| Siesta Key |
Sea water temperature for the last 10 days:
| October 9 | 83.7°F | October 4 | 83.1°F |
| October 8 | 83.5°F | October 3 | 83.3°F |
| October 7 | 83.7°F | October 2 | 83.8°F |
| October 6 | 83.8°F | October 1 | 84.7°F |
| October 5 | 83.5°F | September 30 | 84.2°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 87.1°F. The highest and lowest sea temperatures during the month were 88.3°F and 85.5°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 87.6°F. The highest and lowest sea temperatures during the month were 88.9°F and 85.3°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 86.9°F. The highest and lowest sea temperatures during the month were 88.3°F and 84.2°F.
current
weather
weather
| Siesta Key |
weather in
October
October
| 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: 06:16
October 09, friday
0900
79°F
NW
13 mph
13 mph
1200
86°F
N
19 mph
19 mph
1500
84°F
N
20 mph
20 mph
1800
82°F
N
17 mph
17 mph
2100
82°F
N
14 mph
14 mph
October 10, saturday
0000
82°F
N
14 mph
14 mph
0300
81°F
N
13 mph
13 mph
0600
81°F
NW
11 mph
11 mph
