Water Temperature of the Atlantic Ocean in Key West, FL

Current Water Temperature

78.8°F

Measurement Time: Wednesday, April 22, 2026, 3:00 AM EDT

Temperature Locations

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Local Points of Interest

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

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

75°F
Partly cloudy
Partly cloudy
77.8°F
77.9°F
58%
E 21.5 mph
28.1 mph
75.2°F
61.4°F
0 in
50%
9 mi
1019 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 80°F
L: 75°F
Patchy rain nearby
Thu
H: 76°F
L: 74°F
Patchy rain nearby
Fri
H: 77°F
L: 76°F
Patchy rain nearby
Sat
H: 77°F
L: 76°F
Sunny
Sun
H: 78°F
L: 76°F

Air Quality

AQI: 1 - Good
PM2.5: 10.35 μg/m3
PM10: 18.75 μg/m3
Carbon Monoxide: 133.85 μg/m3
Nitrogen Dioxide: 1.35 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 120 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:26 PM
Sunset: 7:53 PM
Daylight: 12 hrs 53 mins
Moonrise: 11:33 AM
Moon Transit: 6:43 PM
Moonset: 12:53 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

6:49 AM - 9:19 AM
6:13 PM - 8:43 PM

Minor Periods

11:03 AM - 12:33 AM
12:23 AM - 1:53 AM

Action Rating: 3 out of 5

Wednesday, April 22, 2026

Weather Forecast

Patchy rain nearby
80.4°F
74.8°F
76.6°F
62%
0 in
89%
0%
26.4 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 10.03 μg/m3
PM10: 17.64 μg/m3
Carbon Monoxide: 132.45 μg/m3
Nitrogen Dioxide: 1.24 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 115.76 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:26 PM
Sunset: 7:53 PM
Daylight: 12 hrs 53 mins
Moonrise: 11:33 AM
Moon Transit: 6:43 PM
Moonset: 12:53 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

6:49 AM - 9:19 AM
6:13 PM - 8:43 PM

Minor Periods

11:03 AM - 12:33 AM
12:23 AM - 1:53 AM

Action Rating: 3 out of 5

Thursday, April 23, 2026

Weather Forecast

Patchy rain nearby
76°F
74.4°F
75.4°F
66%
0.05 in
89%
0%
20.4 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 10.01 μg/m3
PM10: 15.85 μg/m3
Carbon Monoxide: 130.57 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 108.32 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 1:26 PM
Sunset: 7:54 PM
Daylight: 12 hrs 54 mins
Moonrise: 12:40 AM
Moon Transit: 7:40 PM
Moonset: 1:49 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

7:49 AM - 10:19 AM
7:10 PM - 9:40 PM

Minor Periods

12:10 AM - 1:40 PM
1:19 AM - 2:49 AM

Action Rating: 2 out of 5

Friday, April 24, 2026

Weather Forecast

Patchy rain nearby
76.5°F
75.8°F
76.2°F
69%
0.09 in
83%
0%
20.1 mph
9.9


Air Quality

AQI: 1 - Good
PM2.5: 7.77 μg/m3
PM10: 11.69 μg/m3
Carbon Monoxide: 129.05 μg/m3
Nitrogen Dioxide: 1.31 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 100.04 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:26 PM
Sunset: 7:54 PM
Daylight: 12 hrs 56 mins
Moonrise: 1:44 PM
Moon Transit: 8:33 PM
Moonset: 2:36 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
8:03 PM - 10:33 PM

Minor Periods

1:14 PM - 2:44 PM
2:06 AM - 3:36 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Patchy rain nearby
77.1°F
75.8°F
76.5°F
71%
0.1 in
80%
0%
11 mph
10.5


Air Quality

AQI: 1 - Good
PM2.5: 5.03 μg/m3
PM10: 7.2 μg/m3
Carbon Monoxide: 126.82 μg/m3
Nitrogen Dioxide: 1.52 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 91.84 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:25 PM
Sunset: 7:54 PM
Daylight: 12 hrs 57 mins
Moonrise: 2:45 PM
Moon Transit: 9:21 PM
Moonset: 3:16 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

9:34 AM - 12:04 AM
8:51 PM - 11:21 PM

Minor Periods

2:15 PM - 3:45 PM
2:46 AM - 4:16 AM

Action Rating: 2 out of 5

Sunday, April 26, 2026

Weather Forecast

Sunny
78.1°F
76.4°F
77.1°F
68%
0 in
0%
0%
12.1 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 4.1 μg/m3
PM10: 5.58 μg/m3
Carbon Monoxide: 130.37 μg/m3
Nitrogen Dioxide: 1.9 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 88.38 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 1:25 PM
Sunset: 7:55 PM
Daylight: 12 hrs 58 mins
Moonrise: 3:41 PM
Moon Transit: 10:06 PM
Moonset: 3:52 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

10:20 AM - 12:50 AM
12:00 AM - 12:00 AM

Minor Periods

3:11 PM - 4:41 PM
3:22 AM - 4:52 AM

Action Rating: 2 out of 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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