Water Temperature of the Gulf of Mexico in Key West, FL
Current Water Temperature
Water feels warm and inviting. Safe for extended immersion with virtually no thermal fatigue.
Measurement Time: Monday, November 9, 2026, 1:36 PM EST
Temperature Locations
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Local Points of Interest
Mallory Square; Tank Island; Florida KeysSponsored Content
Station Name: Key West
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 13 feet
Sensor Depth: -4 feet
Nearest Address:
21 Angela St
Key West, FL 33040
Monroe County
GPS Coordinates: 24.55083, -81.80806
Nearby Water Temperatures
Atlantic Ocean, Key West, FL (14.1 mi)Gulf of Mexico, Marathon, FL (45.4 mi)
East Side Creek, Flamingo, FL (61.8 mi)
Joe Kemp Channel, Flamingo, FL (66.5 mi)
Florida Bay, Islamorada, FL (68.4 mi)
Shark River, Flamingo, FL (70.9 mi)
Florida Bay, Islamorada, FL (71.3 mi)
Whitewater Bay, Flamingo, FL (72 mi)
Gulf of Mexico, Flamingo, FL (72.6 mi)
Whipray Basin, Islamorada, FL (76.3 mi)
Harney River, Flamingo, FL (76.4 mi)
Florida Bay, Islamorada, FL (78 mi)
Seven Palm Lake, Flamingo, FL (80.5 mi)
Broad River, Flamingo, FL (82.1 mi)
Little Madeira Bay, Homestead, FL (85.4 mi)
Weather for Key West, Florida
Current Weather

Humidity: 68%
Feels Like: 84°F
Wind: E 6 mph
Wind Gusts: 8 mph
Precipitation: 0 in
Cloud Cover: 6%
Visibility: 6 mi
UV Index: 6.9
Weather Forecast

Mon
H: 81°F
L: 79°F

Tue
H: 81°F
L: 80°F

Wed
H: 80°F
L: 80°F
Air Quality
Air quality is satisfactory, and air pollution poses little or no risk.
Astronomical
Best Times for Fishing or Hunting
Major Periods
11:55 AM - 2:25 PM11:31 PM - 2:01 AM
Minor Periods
6:29 AM - 7:59 AM5:19 PM - 6:49 PM
Coastal Flood Statement issued November 9 at 4:20AM EST until November 9 at 5:00PM EST by NWS Key West FL
Effective: Mon November 9, 2026, 4:20 AM
Expires: Mon November 9, 2026, 5:00 PM
* WHAT...Minor saltwater flooding. * WHERE...The Florida Keys. * WHEN...Through this afternoon. * IMPACTS...Minor saltwater flooding of low elevation streets and lots is likely. Some storm drains will overflow, and some seawalls and docks will be overtopped. Boaters can expect less clearance under fixed bridges. Motorists should remember that persistent puddles around the times of high tide are almost certain to contain a mix of saltwater.
Weather Forecast
Average Temperature: 80.1°F
Average Humidity: 72%
Wind: 9.6 mph
UV Index: 7
Astronomical
Best Times for Fishing or Hunting
Major Periods
11:55 AM - 2:25 PM11:31 PM - 2:01 AM
Minor Periods
6:29 AM - 7:59 AM5:19 PM - 6:49 PM
Weather Forecast
Average Temperature: 80.1°F
Average Humidity: 73%
Wind: 13.9 mph
UV Index: 6.5
Astronomical
Best Times for Fishing or Hunting
Major Periods
12:20 AM - 2:50 AM12:45 PM - 3:15 PM
Minor Periods
7:25 AM - 8:55 AM6:03 PM - 7:33 PM
Weather Forecast
Average Temperature: 79.9°F
Average Humidity: 75%
Wind: 13.2 mph
UV Index: 6.3
Astronomical
Best Times for Fishing or Hunting
Major Periods
1:10 AM - 3:40 AM1:36 PM - 4:06 PM
Minor Periods
8:21 AM - 9:51 AM6:51 PM - 8:21 PM
