World Resorts USA Siesta Key Weather

Siesta Key weather in December

Weather in Siesta Key: December

Average day temperature: 70.2°F
Average night temperature: 62.9°F
Sea water temperature: 68.1°F
Number of sunny days: 15 days
Day length: 10.4 - 10.6 hours
Number of rainy days: 1 day
Precipitation totals: 0.7 in.

Air temperature in December, °F

Show year:
2023
2022
2021

The highest day temperature during December of 2023 was 78°F. At the same time the lowest night temperature was 51°F. Day and night temperature averages during December were 68.6°F and 63.4°F.

Sea water temperature in Siesta Key in December, °F

Show year:
2024
2023
2022

The average sea water temperature in December of 2023 was 66.9°F. The highest and lowest sea temperatures during the month were 71.6°F and 62.4°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are sunny but cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Siesta Key in December is 0.7 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 9.6 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 6.8.

Best time for vacation in Siesta Key

Sunniest months:
March 21 days
May 19 days
April 18 days
Warmest months:
July 88.0 °F
August 88.0 °F
June 86.2 °F
Warmest sea temp:
August 87.4 °F
July 87.1 °F
September 86.0 °F
Coldest months:
January 67.5 °F
December 70.2 °F
February 71.1 °F
Rainiest months:
June 6 days
July 4 days
September 4 days
Windiest months:
November 10.8 mph
April 10.4 mph
January 10.2 mph

Siesta Key on a weather map

Siesta Key
+52°F
SW 11 mph
Feels like: +48°F
Precip.: 0%
Places in USA:
Name
°F
+16°F
+25°F
+75°F
+75°F
+54°F
+54°F
+63°F
+21°F
+52°F
+52°F
+54°F
+50°F
+48°F
+46°F
+23°F
24 Hours Forecast
Siesta Key
Local time: 03:01
December 22, sunday
0600
48°F
S
11 mph
0900
50°F
S
11 mph
1200
57°F
S
10 mph
1500
61°F
S
6 mph
1800
63°F
S
6 mph
2100
63°F
SW
10 mph
December 23, monday
0000
61°F
SW
12 mph
0300
59°F
SW
11 mph
Units of measurement: °C / °F