Measurements:
°C
°F
Siesta Key
86°F
S 6 mph
Feels like: 94°F
Precip: 7%
World Resorts USA Siesta Key Weather

7 Day Weather Forecast

06.25
thu
DAY
90°F
NE 11 mph
precip
12%
NIGHT
82°F
W 11 mph
precip
8%
06.26
fri
DAY
88°F
N 7 mph
precip
4%
NIGHT
86°F
SW 4 mph
precip
7%
06.27
sat
DAY
90°F
NE 4 mph
precip
5%
NIGHT
86°F
SW 7 mph
precip
53%
06.28
sun
DAY
90°F
NE 6 mph
precip
4%
NIGHT
86°F
W 3 mph
precip
6%
06.29
mon
DAY
90°F
E 9 mph
precip
5%
NIGHT
86°F
SE 6 mph
precip
36%
06.30
tue
DAY
90°F
S 7 mph
precip
20%
NIGHT
84°F
SW 11 mph
precip
14%
07.01
wed
DAY
90°F
SW 16 mph
precip
17%
NIGHT
82°F
SW 17 mph
precip
5%

Siesta Key Sea Water Temperature in June, °F

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Siesta Key was 29.2°F. The maximum and minimum values were 27.9°F and 31.6°F respectively.

Siesta Key on the Weather Map

Best Time to Visit Siesta Key
The most sunny months:
March 21 days
May 19 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