World Resorts USA Siesta Key Weather

Siesta Key Sea Temperature in March

Average sea water temperature in March:
+71.2°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:
2025
2024
2023

The average sea water temperature in March of 2025 was 68.5°F. The highest and lowest sea temperatures during the month were 72.1°F and 66.9°F.

Monthly sea water temperature in Siesta Key, °F

Which USA resorts have warmest sea in March?

Place name March 2025 March 2024
Kailua Kona 77.7°F 76.5°F
Honolulu 76.8°F 75.8°F
Hawaii 76.7°F 75.7°F
Maui 76.0°F 75.1°F
West Palm Beach 75.8°F 76.6°F
Fort Lauderdale 75.8°F 75.7°F
Oahu 75.7°F 74.5°F
Miami Beach 75.3°F 76.0°F
Islamorada 75.2°F 77.3°F
Key Largo 75.1°F 76.9°F
Kauai 75.0°F 74.5°F
Key West 74.5°F 76.5°F
Everglades 74.4°F 77.3°F
Miami 74.4°F 75.5°F
Marco Island 71.8°F 74.5°F
Naples 71.4°F 73.8°F
Sanibel Island 70.9°F 73.0°F
Cocoa Beach 70.0°F 71.5°F
Tampa 69.3°F 71.7°F
St. Petersburg 68.8°F 71.8°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 66.6 °F
February 71.0 °F
December 71.1 °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
+64°F
SE 17 mph
Feels like: +64°F
Precip.: 0%
Places in USA:
Name
°F
+32°F
+73°F
+73°F
+50°F
+57°F
+64°F
+70°F
+68°F
+30°F
+63°F
+48°F
+64°F
+61°F
+41°F
+16°F
24 Hours Forecast
Siesta Key
Local time: 00:38
December 30, tuesday
0300
59°F
S
18 mph
0600
52°F
S
16 mph
0900
52°F
S
15 mph
1200
54°F
S
16 mph
1500
57°F
S
15 mph
1800
57°F
S
17 mph
2100
55°F
S
15 mph
December 31, wednesday
0000
54°F
S
12 mph
Units of measurement: °C / °F