World Resorts USA Siesta Key Weather

Siesta Key 7 Days Forecast

05.01
mon
Day
63°F
N 7 mph
Precip.
0%
Night
66°F
SE 3 mph
Precip.
0%
06.01
tue
Day
68°F
N 6 mph
Precip.
0%
Night
63°F
NE 6 mph
Precip.
0%
07.01
wed
Day
64°F
NE 5 mph
Precip.
0%
Night
68°F
E 2 mph
Precip.
0%
08.01
thu
Day
72°F
NW 4 mph
Precip.
0%
Night
70°F
NW 5 mph
Precip.
0%
09.01
fri
Day
72°F
NW 11 mph
Precip.
0%
Night
68°F
N 9 mph
Precip.
0%
10.01
sat
Day
70°F
N 8 mph
Precip.
0%
Night
64°F
S 16 mph
Precip.
0%
11.01
sun
Day
61°F
SW 20 mph
Precip.
0%
Night
55°F
SW 18 mph
Precip.
0%

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 70.9 °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

Siesta Key
+57°F
W 7 mph
Feels like: +57°F
Precip.: 0%
Places in USA:
Name
°F
+28°F
+72°F
+72°F
+48°F
+54°F
+64°F
+68°F
+66°F
+27°F
+57°F
+48°F
+55°F
+57°F
+54°F
+34°F
24 Hours Forecast
Siesta Key
Local time: 09:26
January 05, monday
1200
63°F
N
7 mph
1500
70°F
NE
9 mph
1800
70°F
NE
7 mph
2100
66°F
E
7 mph
January 06, tuesday
0000
66°F
SE
3 mph
0300
64°F
W
5 mph
0600
63°F
NW
2 mph
0900
64°F
NW
3 mph
Units of measurement: °C / °F