World Resorts USA Key Largo Weather

Key Largo Sea Temperature in March

Average sea water temperature in March:
+76.8°F
Minimum sea water temperature in March: 81.1°F
Maximum sea water temperature in March: 70.9°F

Daily sea water temperature in March, °F

Show year:
2026
2025
2024

The average sea water temperature in March of 2026 was 76.8°F. The highest and lowest sea temperatures during the month were 79.7°F and 73.0°F.

Monthly sea water temperature in Key Largo, °F

Which USA resorts have warmest sea in March?

Place name March 2026 March 2025
Everglades 77.4°F 74.4°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
Hialeah 76.1°F 74.6°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 Key Largo

Sunniest months:
December 12 days
February 12 days
March 12 days
Warmest months:
August 85.2 °F
July 85.1 °F
September 84.5 °F
Warmest sea temp:
August 87.6 °F
July 87.1 °F
September 86.6 °F
Coldest months:
January 70.6 °F
February 72.7 °F
December 73.0 °F
Rainiest months:
June 3 days
September 3 days
July 3 days
Windiest months:
March 13.9 mph
November 13.9 mph
April 13.7 mph

Key Largo on a weather map

Key Largo
+82°F
W 20 mph
Feels like: +90°F
Precip.: 0%
Places in USA:
Name
°F
+63°F
+75°F
+75°F
+57°F
+59°F
+81°F
+82°F
+70°F
+79°F
+59°F
+61°F
+79°F
+79°F
+81°F
+61°F
24 Hours Forecast
Key Largo
Local time: 09:38
May 18, monday
1200
86°F
W
19 mph
1500
84°F
W
18 mph
1800
82°F
W
19 mph
2100
82°F
W
20 mph
May 19, tuesday
0000
82°F
W
21 mph
0300
82°F
W
21 mph
0600
82°F
W
19 mph
0900
82°F
W
18 mph
Units of measurement: °C / °F