World Resorts USA Key West Weather

Key West Sea Temperature in June

Average sea water temperature in June:
+84.8°F
Minimum sea water temperature in June: 90.3°F
Maximum sea water temperature in June: 80.2°F

Daily sea water temperature in June, °F

Show year:
2026
2025
2024

The average sea water temperature in June of 2026 was 86.9°F. The highest and lowest sea temperatures during the month were 90.3°F and 83.5°F.

Monthly sea water temperature in Key West, °F

Which USA resorts have warmest sea in June?

Place name June 2026 June 2025
Key West 86.9°F 85.5°F
Naples 86.1°F 85.9°F
St. Petersburg 86.0°F 85.8°F
Clearwater Beach 85.9°F 85.7°F
Tampa 85.7°F 85.5°F
Sarasota 85.5°F 85.9°F
Siesta Key 85.4°F 85.8°F
Miami 85.4°F 85.5°F
Miami Beach 85.1°F 84.9°F
Fort Lauderdale 84.5°F 83.2°F
New Orleans 84.1°F 84.7°F
West Palm Beach 84.0°F 83.3°F
Corpus Christi 84.0°F 85.1°F
Houston 84.0°F 84.8°F
South Padre Island 83.5°F 83.2°F
Pensacola 83.1°F 84.6°F
Panama City Beach 82.7°F 84.3°F
Destin 82.5°F 84.4°F
St. Augustine 82.3°F 80.0°F
Jacksonville 81.9°F 80.1°F

Best time for vacation in Key West

Sunniest months:
May 17 days
March 16 days
April 16 days
Warmest months:
August 87.4 °F
July 86.9 °F
September 85.8 °F
Warmest sea temp:
August 87.2 °F
July 86.6 °F
September 86.1 °F
Coldest months:
January 72.0 °F
February 73.7 °F
December 75.4 °F
Rainiest months:
June 7 days
August 7 days
September 6 days
Windiest months:
November 14.7 mph
December 13.9 mph
January 13.8 mph

Key West on a weather map

Key West
+86°F
SW 11 mph
Feels like: +95°F
Precip.: 6%
Places in USA:
Name
°F
+79°F
+77°F
+86°F
+66°F
+82°F
+70°F
+81°F
+75°F
+66°F
+57°F
+66°F
+88°F
+84°F
+82°F
+79°F
24 Hours Forecast
Key West
Local time: 08:48
July 16, thursday
0900
86°F
SW
11 mph
1200
91°F
W
12 mph
1500
90°F
W
9 mph
1800
88°F
W
6 mph
2100
86°F
W
6 mph
July 17, friday
0000
84°F
W
11 mph
0300
84°F
W
9 mph
0600
84°F
W
7 mph
Units of measurement: °C / °F