World Resorts USA Siesta Key Weather

Siesta Key weather in April

Weather in Siesta Key: April

Average day temperature: 80.7°F
Average night temperature: 68.8°F
Sea water temperature: 76.1°F
Number of sunny days: 17 days
Day length: 12.5 - 13.2 hours
Number of rainy days: 2 days
Precipitation totals: 0.9 in.

Air temperature in April, °F

Show year:
2025
2024
2023

The highest day temperature during April of 2025 was 92°F. At the same time the lowest night temperature was 54°F. Daily and nightly averages during April were 85.6°F and 64.7°F.

Sea water temperature in Siesta Key in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 75.7°F. The highest and lowest sea temperatures during the month were 78.8°F and 72.5°F.

Sunny, partly cloudy and cloudy days

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

Precipitation total in April, in.

Precipitation total value in Siesta Key in April is 0.9 in. Other months of the year show relatively similar values.

Wind speed in April, mph

The average wind speed value in April is 10.3 mph It makes April one of the most windy months of the year.

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 April is: 9.3.

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

Siesta Key
+63°F
W 6 mph
Feels like: +63°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+41°F
+52°F
+70°F
+77°F
+70°F
+21°F
+54°F
+46°F
+61°F
+61°F
+46°F
+5°F
24 Hours Forecast
Siesta Key
Local time: 01:50
December 05, friday
0300
63°F
W
6 mph
0600
63°F
NW
7 mph
0900
66°F
N
7 mph
1200
70°F
N
12 mph
1500
72°F
N
11 mph
1800
72°F
N
7 mph
2100
72°F
N
7 mph
December 06, saturday
0000
72°F
NE
6 mph
Units of measurement: °C / °F