World Resorts USA Siesta Key Weather

Siesta Key 14 Days Forecast

21.12
sun
Day
70°F
SW 6 mph
Precip.
0%
Night
68°F
SW 14 mph
Precip.
0%
22.12
mon
Day
72°F
W 17 mph
Precip.
0%
Night
68°F
W 11 mph
Precip.
0%
23.12
tue
Day
73°F
W 14 mph
Precip.
0%
Night
68°F
W 10 mph
Precip.
0%
24.12
wed
Day
72°F
SW 10 mph
Precip.
0%
Night
66°F
W 10 mph
Precip.
0%
25.12
thu
Day
72°F
SW 7 mph
Precip.
0%
Night
70°F
W 8 mph
Precip.
53%
26.12
fri
Day
70°F
NW 6 mph
Precip.
0%
Night
66°F
NE 7 mph
Precip.
0%
27.12
sat
Day
70°F
NW 6 mph
Precip.
0%
Night
66°F
NE 7 mph
Precip.
0%
28.12
sun
Day
70°F
NW 6 mph
Precip.
0%
Night
68°F
SW 13 mph
Precip.
0%
29.12
mon
Day
72°F
SW 14 mph
Precip.
21%
Night
68°F
W 14 mph
Precip.
0%
30.12
tue
Day
72°F
W 12 mph
Precip.
0%
Night
64°F
W 13 mph
Precip.
0%
31.12
wed
Day
72°F
W 9 mph
Precip.
0%
Night
70°F
SW 3 mph
Precip.
0%
01.01
thu
Day
70°F
NW 11 mph
Precip.
0%
Night
70°F
NW 13 mph
Precip.
22%
02.01
fri
Day
72°F
N 16 mph
Precip.
100%
Night
70°F
NE 8 mph
Precip.
100%
03.01
sat
Day
68°F
SE 9 mph
Precip.
0%
Night
64°F
SE 10 mph
Precip.
0%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 69.7°F. The highest and lowest sea temperatures during the month were 71.6°F and 67.3°F.

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 61.5°F. The highest and lowest sea temperatures during the month were 68.5°F and 55.4°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

Sunniest months:
March 20 days
May 18 days
April 17 days
Warmest months:
July 88.1 °F
August 88.0 °F
June 86.3 °F
Warmest sea temp:
August 87.6 °F
July 87.1 °F
September 85.8 °F
Coldest months:
January 66.6 °F
December 70.1 °F
February 71.0 °F
Rainiest months:
June 5 days
July 4 days
September 3 days
Windiest months:
November 10.5 mph
January 10.4 mph
October 10.4 mph

Siesta Key on a weather map

Current weather
05:36
Siesta Key
+57°F
W 7 mph
Feels like: +57°F
Precip.: 0%
Places in USA:
Name
°F
Washington
+36°F
Hawaii
+75°F
Honolulu
+75°F
Las Vegas
+50°F
Los Angeles
+55°F
Miami
+66°F
Miami Beach
+73°F
Maui
+70°F
New York
+36°F
San Diego
+57°F
San Francisco
+57°F
Sarasota
+57°F
Tampa
+54°F
Houston
+68°F
Chicago
+19°F
all places
24 Hours Forecast
Siesta Key
Local time: 05:36
December 21, sunday
0600
57°F
W
7 mph
0900
64°F
SW
7 mph
1200
70°F
SW
6 mph
1500
73°F
SE
6 mph
1800
73°F
SE
9 mph
2100
72°F
S
11 mph
December 22, monday
0000
68°F
SW
14 mph
0300
66°F
SW
14 mph
Units of measurement: °C / °F