World Resorts USA Siesta Key Weather

Siesta Key Sea Temperature in October

Average sea water temperature in October:
+80.5°F
Minimum sea water temperature in October: 86.9°F
Maximum sea water temperature in October: 73.8°F

Daily sea water temperature in October, °F

Show year:
2025
2024
2023

The average sea water temperature in October of 2025 was 80.4°F. The highest and lowest sea temperatures during the month were 84.6°F and 77.4°F.

Monthly sea water temperature in Siesta Key, °F

Which USA resorts have warmest sea in October?

Place name October 2025 October 2024
Key West 83.8°F 82.9°F
Fort Lauderdale 83.5°F 83.0°F
Miami Beach 83.4°F 83.4°F
Miami 82.7°F 82.9°F
Corpus Christi 82.2°F 80.6°F
Naples 81.9°F 81.6°F
Kauai 81.3°F 79.2°F
Honolulu 80.7°F 80.6°F
Hawaii 80.6°F 80.5°F
Molokai 80.5°F 80.1°F
Siesta Key 80.4°F 80.7°F
Houston 80.4°F 78.8°F
Hilo 80.3°F 79.7°F
Sarasota 80.2°F 80.5°F
Maui 79.8°F 79.4°F
Oahu 79.8°F 80.2°F
St. Petersburg 79.4°F 79.0°F
Tampa 79.4°F 79.3°F
Panama City Beach 79.2°F 78.9°F
Cocoa Beach 79.2°F 79.9°F

Best time for vacation in Siesta Key

Sunniest months:
March 21 days
May 19 days
April 18 days
Warmest months:
July 88.1 °F
August 88.0 °F
June 86.9 °F
Warmest sea temp:
August 87.6 °F
July 87.1 °F
September 85.8 °F
Coldest months:
January 66.9 °F
February 70.7 °F
December 70.9 °F
Rainiest months:
July 4 days
June 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
+84°F
S 9 mph
Feels like: +93°F
Precip.: 7%
Places in USA:
Name
°F
+66°F
+79°F
+99°F
+73°F
+84°F
+84°F
+75°F
+82°F
+70°F
+68°F
+68°F
+86°F
+86°F
+81°F
+68°F
24 Hours Forecast
Siesta Key
Local time: 22:29
June 28, sunday
0000
79°F
SW
8 mph
0300
77°F
W
5 mph
0600
75°F
W
7 mph
0900
82°F
NW
9 mph
1200
88°F
N
8 mph
1500
86°F
NE
12 mph
1800
86°F
E
9 mph
2100
84°F
NE
4 mph
Units of measurement: °C / °F