World Resorts USA Siesta Key Weather

Siesta Key 7 Days Forecast

14.01
wed
Day
66°F
SE 14 mph
Precip.
0%
Night
68°F
E 12 mph
Precip.
0%
15.01
thu
Day
61°F
SE 22 mph
Precip.
100%
Night
52°F
S 14 mph
Precip.
0%
16.01
fri
Day
54°F
W 6 mph
Precip.
0%
Night
52°F
SW 9 mph
Precip.
0%
17.01
sat
Day
59°F
SW 3 mph
Precip.
0%
Night
61°F
S 7 mph
Precip.
0%
18.01
sun
Day
63°F
NW 6 mph
Precip.
0%
Night
57°F
NE 14 mph
Precip.
0%
19.01
mon
Day
52°F
SW 13 mph
Precip.
0%
Night
54°F
SW 11 mph
Precip.
0%
20.01
tue
Day
61°F
NW 6 mph
Precip.
0%
Night
59°F
SW 14 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
+61°F
SE 7 mph
Feels like: +61°F
Precip.: 78%
Places in USA:
Name
°F
+48°F
+72°F
+72°F
+52°F
+59°F
+68°F
+73°F
+66°F
+41°F
+55°F
+48°F
+61°F
+59°F
+46°F
+37°F
24 Hours Forecast
Siesta Key
Local time: 04:10
January 14, wednesday
0600
61°F
SE
10 mph
0900
64°F
SE
11 mph
1200
66°F
SE
14 mph
1500
68°F
SE
14 mph
1800
66°F
SE
12 mph
2100
66°F
E
11 mph
January 15, thursday
0000
68°F
E
12 mph
0300
66°F
E
14 mph
Units of measurement: °C / °F