Current sea water temperature:
+88.3°F
| Minimum sea water temperature in June: | 88.9°F |
| Maximum sea water temperature in June: | 81.0°F |
| Average sea water temperature in June: | 84.8°F |
| more information | |
14 days
forecast
forecast
| Siesta Key |
monthly
weather
weather
| Siesta Key |
Sea water temperature for the last 10 days:
| June 27 | 88.3°F | June 22 | 87.1°F |
| June 26 | 88.5°F | June 21 | 86.4°F |
| June 25 | 88.2°F | June 20 | 85.8°F |
| June 24 | 88.9°F | June 19 | 85.5°F |
| June 23 | 88.0°F | June 18 | 85.5°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
July
July
| 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: 20:04
June 27, saturday
2100
84°F
S
9 mph
9 mph
June 28, sunday
0000
79°F
SW
8 mph
8 mph
0300
77°F
W
5 mph
5 mph
0600
75°F
W
7 mph
7 mph
0900
82°F
NW
9 mph
9 mph
1200
88°F
N
8 mph
8 mph
1500
86°F
NE
12 mph
12 mph
1800
86°F
E
9 mph
9 mph
