World Resorts USA Siesta Key Weather

Siesta Key Sea Temperature in January

Average sea water temperature in January:
+64.7°F
Minimum sea water temperature in January: 72.3°F
Maximum sea water temperature in January: 55.4°F

Daily sea water temperature in January, °F

Show year:
2026
2025
2024

The average sea water temperature in January of 2026 was 65.0°F. The highest and lowest sea temperatures during the month were 69.3°F and 59.7°F.

Monthly sea water temperature in Siesta Key, °F

Which USA resorts have warmest sea in January?

Place name January 2026 January 2025
Kailua Kona 78.3°F 78.2°F
Honolulu 77.2°F 77.6°F
Hawaii 77.2°F 77.5°F
Maui 77.0°F 76.9°F
Kauai 77.0°F 75.0°F
West Palm Beach 76.6°F 75.5°F
Oahu 76.1°F 76.5°F
Fort Lauderdale 75.9°F 75.1°F
Miami Beach 74.0°F 73.1°F
Key West 72.5°F 70.3°F
Key Largo 71.7°F 71.1°F
Miami 71.2°F 70.7°F
Everglades 70.8°F 68.6°F
South Padre Island 69.5°F 66.7°F
Marco Island 68.2°F 65.2°F
Naples 67.7°F 64.7°F
Cocoa Beach 66.9°F 60.9°F
Sanibel Island 66.8°F 63.7°F
Siesta Key 65.0°F 61.5°F
Sarasota 65.0°F 61.2°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
+73°F
+73°F
+54°F
+66°F
+73°F
+73°F
+68°F
+30°F
+63°F
+52°F
+55°F
+55°F
+57°F
+23°F
24 Hours Forecast
Siesta Key
Local time: 13:27
February 05, thursday
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
1200
55°F
SE
11 mph
Units of measurement: °C / °F