Measurements:
°C
°F
CURRENT WEATHER
09:40
Siesta Key
84°F
W 9 mph
Feels like: 92°F
Precip: 22%
World Resorts USA Siesta Key Weather

14 Day Weather Forecast

09.15
tue
DAY
92°F
W 8 mph
precip
36%
NIGHT
84°F
W 14 mph
precip
9%
09.16
wed
DAY
88°F
SW 17 mph
precip
8%
NIGHT
82°F
SW 14 mph
precip
5%
09.17
thu
DAY
88°F
SW 14 mph
precip
17%
NIGHT
82°F
W 10 mph
precip
10%
09.18
fri
DAY
92°F
W 11 mph
precip
11%
NIGHT
80°F
NW 11 mph
precip
10%
09.19
sat
DAY
90°F
W 9 mph
precip
13%
NIGHT
86°F
NW 5 mph
precip
10%
09.20
sun
DAY
88°F
N 7 mph
precip
17%
NIGHT
82°F
W 12 mph
precip
74%
09.21
mon
DAY
88°F
NW 6 mph
precip
32%
NIGHT
80°F
NW 9 mph
precip
27%
09.22
tue
DAY
84°F
NW 9 mph
precip
25%
NIGHT
80°F
W 9 mph
precip
44%
09.23
wed
DAY
86°F
N 10 mph
precip
46%
NIGHT
82°F
NW 6 mph
precip
39%
09.24
thu
DAY
84°F
NW 11 mph
precip
68%
NIGHT
84°F
N 9 mph
precip
21%
09.25
fri
DAY
86°F
E 7 mph
precip
36%
NIGHT
86°F
NE 4 mph
precip
19%
09.26
sat
DAY
84°F
E 12 mph
precip
72%
NIGHT
80°F
NW 12 mph
precip
41%
09.27
sun
DAY
82°F
NW 13 mph
precip
63%
NIGHT
84°F
N 15 mph
precip
71%
09.28
mon
DAY
86°F
NW 11 mph
precip
15%
NIGHT
86°F
NE 9 mph
precip
28%

Siesta Key Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Siesta Key was 92.1°F. The maximum and minimum values were 91.6°F and 92.6°F respectively.

Siesta Key on the Weather Map

Best Time to Visit Siesta Key
The most sunny months:
March 21 days
May 19 days
April 18 days
The most warm months:
August 92.6 °F
July 92.6 °F
June 91.1 °F
Warmest sea temperature:
August 91.7 °F
July 91.3 °F
September 89.8 °F
The most cold months:
January 68.8 °F
February 73.0 °F
December 73.2 °F
The most rainy months:
July 4 days
June 4 days
September 3 days
The most windy months:
November 10 mph
January 10 mph
October 10 mph
more details
USA Resorts:
NAME
F°
Boston +62
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +72
Maui +66
Miami +88
Myrtle Beach +78
New York +66
Panama City Beach +90
San Diego +70
San Francisco +60
Santa Monica +72
Sarasota +86
Washington +66
all resorts
24 Hours Weather Forecast
Siesta Key
Local time: 09:40
15 sep, tuesday
1200 92°F
W
8 mph
1500 94°F
W
4 mph
1800 94°F
SW
10 mph
2100 88°F
W
15 mph
16 sep, wednesday
0000 84°F
W
14 mph
0300 82°F
SW
12 mph
0600 82°F
SW
14 mph
0900 84°F
SW
19 mph