World Resorts USA Siesta Key Weather

Siesta Key Sea Temperature in July

Average sea water temperature in July:
+87.1°F
Minimum sea water temperature in July: 89.1°F
Maximum sea water temperature in July: 83.7°F

Daily sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 86.9°F. The highest and lowest sea temperatures during the month were 89.1°F and 85.6°F.

Monthly sea water temperature in Siesta Key, °F

Which USA resorts have warmest sea in July?

Place name July 2025 July 2024
New Orleans 87.4°F 87.1°F
Pass Christian 87.3°F 86.7°F
Bay Saint Louis 87.2°F 86.7°F
Gulfport 87.1°F 86.6°F
Clearwater Beach 87.1°F 88.3°F
St. Petersburg 87.0°F 88.0°F
Sarasota 86.9°F 87.9°F
Sanibel Island 86.9°F 87.7°F
Siesta Key 86.9°F 87.9°F
Pensacola 86.9°F 87.3°F
Tampa 86.8°F 87.4°F
Key West 86.7°F 87.6°F
Orange Beach 86.7°F 86.7°F
Pensacola Beach 86.7°F 87.1°F
Marco Island 86.6°F 87.4°F
Naples 86.6°F 87.2°F
Galveston 86.4°F 86.3°F
Galveston Island 86.4°F 86.4°F
Miami 86.3°F 86.9°F
Panama City Beach 86.3°F 86.8°F

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 66.9 °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
+55°F
SE 24 mph
Feels like: +50°F
Precip.: 79%
Places in USA:
Name
°F
+28°F
+70°F
+70°F
+54°F
+66°F
+73°F
+72°F
+64°F
+30°F
+64°F
+52°F
+55°F
+54°F
+57°F
+23°F
24 Hours Forecast
Siesta Key
Local time: 11:36
February 05, thursday
1200
55°F
SE
24 mph
1500
57°F
SE
27 mph
1800
54°F
SE
24 mph
2100
50°F
SE
22 mph
February 06, friday
0000
50°F
SE
19 mph
0300
52°F
SE
16 mph
0600
50°F
SE
12 mph
0900
50°F
SE
13 mph
Units of measurement: °C / °F