Measurements:
°C
°F
CURRENT WEATHER
13:03
Siesta Key
92°F
SE 14 mph
Feels like: 100°F
Precip: 0%
World Resorts USA Siesta Key Weather

7 Day Weather Forecast

05.14
thu
DAY
92°F
SE 14 mph
precip
0%
NIGHT
78°F
SE 11 mph
precip
0%
05.15
fri
DAY
86°F
SE 7 mph
precip
0%
NIGHT
82°F
SE 7 mph
precip
0%
05.16
sat
DAY
84°F
NE 11 mph
precip
0%
NIGHT
80°F
W 6 mph
precip
0%
05.17
sun
DAY
88°F
N 7 mph
precip
0%
NIGHT
76°F
W 9 mph
precip
0%
05.18
mon
DAY
90°F
NW 7 mph
precip
0%
NIGHT
78°F
SW 11 mph
precip
0%
05.19
tue
DAY
86°F
NW 9 mph
precip
100%
NIGHT
80°F
W 9 mph
precip
0%
05.20
wed
DAY
86°F
N 9 mph
precip
0%
NIGHT
84°F
W 6 mph
precip
45%

Siesta Key Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Siesta Key was 28.0°F. The maximum and minimum values were 25.4°F and 30.5°F respectively.

Siesta Key on the Weather Map

Best Time to Visit Siesta Key
The most sunny months:
March 21 days
May 18 days
April 18 days
The most warm months:
July 92.3 °F
August 92.2 °F
June 90.4 °F
Warmest sea temperature:
August 91.8 °F
July 91.2 °F
September 89.8 °F
The most cold months:
January 68.8 °F
February 73.0 °F
December 73.2 °F
The most rainy months:
June 5 days
July 4 days
September 3 days
The most windy months:
November 10 mph
January 10 mph
October 10 mph
more details