World Resorts USA Key Largo Weather

Key Largo Sea Temperature in August

Average sea water temperature in August:
+87.6°F
Minimum sea water temperature in August: 90.7°F
Maximum sea water temperature in August: 84.9°F

Daily sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 88.7°F. The highest and lowest sea temperatures during the month were 90.1°F and 86.9°F.

Monthly sea water temperature in Key Largo, °F

Which USA resorts have warmest sea in August?

Place name August 2025 August 2024
Everglades 88.8°F 87.0°F
Key West 88.8°F 87.8°F
Cape Coral 88.7°F 86.8°F
Key Largo 88.7°F 87.3°F
Marco Island 88.7°F 87.1°F
Naples 88.7°F 87.0°F
St. Petersburg 88.7°F 86.9°F
Tampa 88.6°F 86.4°F
Sarasota 88.6°F 87.2°F
Siesta Key 88.6°F 87.3°F
Clearwater Beach 88.5°F 87.0°F
Miami 88.1°F 86.4°F
Hialeah 87.9°F 86.2°F
Miami Beach 87.9°F 86.5°F
Galveston 87.9°F 88.3°F
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
Fort Lauderdale 87.2°F 85.8°F
Corpus Christi 87.0°F 87.9°F
West Palm Beach 86.8°F 86.2°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
NW 21 mph
Feels like: +90°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+75°F
+75°F
+81°F
+61°F
+81°F
+82°F
+70°F
+57°F
+63°F
+55°F
+77°F
+77°F
+73°F
+59°F
24 Hours Forecast
Key Largo
Local time: 00:51
May 25, monday
0300
82°F
NW
22 mph
0600
81°F
NW
21 mph
0900
82°F
NW
23 mph
1200
84°F
W
21 mph
1500
82°F
W
19 mph
1800
82°F
NW
18 mph
2100
82°F
NW
20 mph
May 26, tuesday
0000
82°F
NW
22 mph
Units of measurement: °C / °F