World Resorts USA Siesta Key Weather

Siesta Key Sea Temperature in March

Average sea water temperature in March:
+71.1°F
Minimum sea water temperature in March: 78.3°F
Maximum sea water temperature in March: 63.9°F

Daily sea water temperature in March, °F

Show year:
2026
2025
2024

The average sea water temperature in March of 2026 was 70.1°F. The highest and lowest sea temperatures during the month were 73.8°F and 65.3°F.

Monthly sea water temperature in Siesta Key, °F

Which USA resorts have warmest sea in March?

Place name March 2026 March 2025
Everglades 77.4°F 74.4°F
Kailua Kona 77.2°F 77.7°F
West Palm Beach 77.1°F 75.8°F
Key Largo 76.8°F 75.1°F
Miami Beach 76.8°F 75.3°F
Honolulu 76.7°F 76.8°F
Fort Lauderdale 76.6°F 75.8°F
Hawaii 76.5°F 76.7°F
Kauai 76.5°F 75.0°F
Key West 76.5°F 74.5°F
Hilo 76.3°F 76.3°F
Miami 76.0°F 74.4°F
Maui 75.5°F 76.0°F
Oahu 74.9°F 75.7°F
Cape Coral 73.9°F 71.7°F
Marco Island 73.5°F 71.8°F
Naples 72.6°F 71.4°F
Corpus Christi 71.9°F 67.0°F
Tampa 71.7°F 69.3°F
Cocoa Beach 71.7°F 70.0°F

Best time for vacation in Siesta Key

Sunniest months:
March 21 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
February 70.7 °F
December 70.9 °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
+73°F
SW 14 mph
Feels like: +77°F
Precip.: 0%
Places in USA:
Name
°F
+59°F
+73°F
+73°F
+88°F
+77°F
+73°F
+73°F
+70°F
+54°F
+72°F
+59°F
+73°F
+72°F
+77°F
+34°F
24 Hours Forecast
Siesta Key
Local time: 15:28
April 07, tuesday
1800
72°F
SW
23 mph
2100
66°F
SW
24 mph
April 08, wednesday
0000
66°F
SW
23 mph
0300
66°F
SW
23 mph
0600
66°F
SW
22 mph
0900
68°F
SW
22 mph
1200
73°F
SW
18 mph
1500
75°F
SW
27 mph
Units of measurement: °C / °F