Water Temperature of the Atlantic Ocean in Key West, FL

Current Water Temperature

83.1°F 28.4°C
Warm Warm & Relaxing
83.1°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Water feels warm and inviting. Safe for extended immersion with virtually no thermal fatigue.

Measurement Time: Wednesday, November 11, 2026, 11:00 AM EST

Temperature Locations

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Local Points of Interest

Satan Shoal; Florida Keys National Marine Sactuary; Key West National Wildlife Refuge; Florida Keys

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Atlantic Ocean

Station Name: Satan Shoal, FL (244)
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet

Nearest Address:
Satan Shoal
Key West, FL 33040
Monroe County

GPS Coordinates: 24.407, -81.967

Nearby Water Temperatures

Gulf of Mexico, Key West, FL (14.1 mi)
Gulf of Mexico, Marathon, FL (58 mi)
East Side Creek, Flamingo, FL (75.8 mi)
Joe Kemp Channel, Flamingo, FL (80.4 mi)
Florida Bay, Islamorada, FL (81.9 mi)
Florida Bay, Islamorada, FL (84.3 mi)
Shark River, Flamingo, FL (84.9 mi)
Whitewater Bay, Flamingo, FL (86.1 mi)
Gulf of Mexico, Flamingo, FL (86.4 mi)
Whipray Basin, Islamorada, FL (89.9 mi)
Harney River, Flamingo, FL (90.4 mi)
Florida Bay, Islamorada, FL (91.4 mi)
Seven Palm Lake, Flamingo, FL (94.3 mi)
Broad River, Flamingo, FL (96.1 mi)
Little Madeira Bay, Homestead, FL (99.1 mi)

Weather for Key West, Florida

Current Weather

81.7°F
Mainly Sunny
Conditions: Mainly Sunny
Humidity: 77%
Feels Like: 90.1°F
Wind: SSE 8.1 mph
Wind Gusts: 8.5 mph
Pressure: 29.98 in
Precipitation: 0 in
Cloud Cover: 36%
Visibility: 12.4 mi
UV Index: 6.2

Five-Day Weather Forecast

Overcast
Wed
H: 82°F
L: 80°F
Overcast
Thu
H: 81°F
L: 77°F
Light Drizzle
Fri
H: 81°F
L: 74°F
Overcast
Sat
H: 75°F
L: 70°F
Light Drizzle
Sun
H: 78°F
L: 71°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
7.1 μg/m³
Good
PM10
11.6 μg/m³
Good
Ozone (O3)
84 μg/m³
Photochemical
NO2
0.3 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
114 μg/m³
Carbon Monoxide

Astronomical

Sun
11h 1m daylight
Sunrise 6:41 AM
Solar Noon 12:11 PM
Sunset 5:43 PM
Moon
New • 2%
Moonrise 8:51 AM
Transit 2:07 PM
Moonset 7:22 PM

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
1:37 PM - 4:07 PM

Minor Periods

8:21 AM - 9:51 AM
6:52 PM - 8:22 PM
Action Rating:
Good Action 3/5
Wednesday, November 11, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 81.1°F
Average Humidity: 75%
Chance of Rain: 16%
Wind: 14.4 mph
UV Index: 6.2

Air Quality

EPA Index 1 • Good
PM2.5
7.5 μg/m³
Good
PM10
12.1 μg/m³
Good
Ozone (O3)
80.7 μg/m³
Photochemical
NO2
0.6 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
113.8 μg/m³
Carbon Monoxide

Astronomical

Sun
11h 1m daylight
Sunrise 6:41 AM
Solar Noon 12:11 PM
Sunset 5:43 PM
Moon
New • 2%
Moonrise 8:51 AM
Transit 2:07 PM
Moonset 7:22 PM

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
1:37 PM - 4:07 PM

Minor Periods

8:21 AM - 9:51 AM
6:52 PM - 8:22 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 80.1°F
Average Humidity: 75%
Chance of Rain: 17%
Wind: 14 mph
UV Index: 5.6

Air Quality

EPA Index 1 • Good
PM2.5
7 μg/m³
Good
PM10
11 μg/m³
Good
Ozone (O3)
77.2 μg/m³
Photochemical
NO2
0.6 μg/m³
Nitrogen Dioxide
SO2
1.1 μg/m³
Sulfur Dioxide
CO
113.7 μg/m³
Carbon Monoxide

Astronomical

Sun
11h 0m daylight
Sunrise 6:42 AM
Solar Noon 12:12 PM
Sunset 5:42 PM
Moon
Waxing Crescent • 6%
Moonrise 9:44 AM
Transit 2:58 PM
Moonset 8:15 PM

Best Times for Fishing or Hunting

Major Periods

2:03 AM - 4:33 AM
2:28 PM - 4:58 PM

Minor Periods

9:14 AM - 10:44 AM
7:45 PM - 9:15 PM
Action Rating:
Fair Action 2/5
Friday, November 13, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 77.9°F
Average Humidity: 73%
Chance of Rain: 22%
Wind: 17.5 mph
UV Index: 5.9

Air Quality

EPA Index 1 • Good
PM2.5
5.8 μg/m³
Good
PM10
8.8 μg/m³
Good
Ozone (O3)
83.7 μg/m³
Photochemical
NO2
0.3 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
118.3 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 59m daylight
Sunrise 6:43 AM
Solar Noon 12:12 PM
Sunset 5:42 PM
Moon
Waxing Crescent • 13%
Moonrise 10:33 AM
Transit 3:49 PM
Moonset 9:08 PM

Best Times for Fishing or Hunting

Major Periods

2:54 AM - 5:24 AM
3:19 PM - 5:49 PM

Minor Periods

10:03 AM - 11:33 AM
8:38 PM - 10:08 PM
Action Rating:
Good Action 3/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 72.3°F
Average Humidity: 64%
Chance of Rain: 4%
Wind: 20.3 mph
UV Index: 5.8

Air Quality

EPA Index 1 • Good
PM2.5
5.8 μg/m³
Good
PM10
7.9 μg/m³
Good
Ozone (O3)
99.4 μg/m³
Photochemical
NO2
0.6 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
125.4 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 58m daylight
Sunrise 6:43 AM
Solar Noon 12:12 PM
Sunset 5:41 PM
Moon
Waxing Crescent • 21%
Moonrise 11:16 AM
Transit 4:38 PM
Moonset 10:03 PM

Best Times for Fishing or Hunting

Major Periods

3:44 AM - 6:14 AM
4:08 PM - 6:38 PM

Minor Periods

10:46 AM - 12:16 PM
9:33 PM - 11:03 PM
Action Rating:
Good Action 3/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 75.6°F
Average Humidity: 70%
Chance of Rain: 24%
Wind: 25.8 mph
UV Index: 2.3

Air Quality

EPA Index 1 • Good
PM2.5
9.2 μg/m³
Good
PM10
12.9 μg/m³
Good
Ozone (O3)
98.4 μg/m³
Photochemical
NO2
1.1 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
124.7 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 57m daylight
Sunrise 6:44 AM
Solar Noon 12:12 PM
Sunset 5:41 PM
Moon
Waxing Crescent • 31%
Moonrise 11:56 AM
Transit 5:24 PM
Moonset 10:58 PM

Best Times for Fishing or Hunting

Major Periods

4:31 AM - 7:01 AM
4:54 PM - 7:24 PM

Minor Periods

11:26 AM - 12:56 PM
10:28 PM - 11:58 PM
Action Rating:
Good Action 3/5
The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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