20.05
wed
wed
Day
84°F
NW 4 mph
Precip.
0%
0%
Night
77°F
W 9 mph
Precip.
0%
0%
21.05
thu
thu
Day
82°F
NW 4 mph
Precip.
0%
0%
Night
79°F
NW 10 mph
Precip.
0%
0%
22.05
fri
fri
Day
82°F
N 4 mph
Precip.
0%
0%
Night
79°F
W 8 mph
Precip.
100%
100%
23.05
sat
sat
Day
82°F
N 9 mph
Precip.
81%
81%
Night
81°F
W 11 mph
Precip.
0%
0%
24.05
sun
sun
Day
82°F
N 7 mph
Precip.
0%
0%
Night
81°F
W 11 mph
Precip.
100%
100%
25.05
mon
mon
Day
84°F
N 9 mph
Precip.
100%
100%
Night
79°F
W 11 mph
Precip.
42%
42%
26.05
tue
tue
Day
84°F
N 11 mph
Precip.
0%
0%
Night
81°F
W 8 mph
Precip.
0%
0%
27.05
wed
wed
Day
84°F
N 9 mph
Precip.
0%
0%
Night
81°F
W 11 mph
Precip.
50%
50%
28.05
thu
thu
Day
84°F
N 8 mph
Precip.
0%
0%
Night
81°F
N 2 mph
Precip.
0%
0%
29.05
fri
fri
Day
82°F
N 9 mph
Precip.
100%
100%
Night
81°F
NE 4 mph
Precip.
23%
23%
30.05
sat
sat
Day
82°F
NE 11 mph
Precip.
0%
0%
Night
79°F
NE 5 mph
Precip.
0%
0%
31.05
sun
sun
Day
82°F
N 13 mph
Precip.
48%
48%
Night
81°F
NE 3 mph
Precip.
0%
0%
01.06
mon
mon
Day
82°F
SE 4 mph
Precip.
0%
0%
Night
79°F
W 7 mph
Precip.
100%
100%
02.06
tue
tue
Day
86°F
N 6 mph
Precip.
0%
0%
Night
75°F
W 21 mph
Precip.
100%
100%
sea water
temperature
temperature
| Siesta Key |
monthly
weather
weather
| Siesta Key |
current
weather
weather
| Siesta Key |
7 days
forecast
forecast
| Siesta Key |
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 80.2°F. The highest and lowest sea temperatures during the month were 82.4°F and 77.2°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 85.8°F. The highest and lowest sea temperatures during the month were 86.9°F and 83.8°F.
Air temperature in Siesta Key, °F
Precipitation total in Siesta Key, in.
* Charts above show average data for the last 3 years.
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: 06:47
May 20, wednesday
0900
79°F
W
11 mph
11 mph
1200
84°F
NW
4 mph
4 mph
1500
82°F
E
11 mph
11 mph
1800
82°F
NE
7 mph
7 mph
2100
77°F
W
16 mph
16 mph
May 21, thursday
0000
77°F
W
9 mph
9 mph
0300
75°F
W
9 mph
9 mph
0600
75°F
W
9 mph
9 mph
