Water Temperature of the Atlantic Ocean in Key West, FL

Current Water Temperature

76.5°F

Measurement Time: Thursday, March 26, 2026, 11:00 PM 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

77.5°F
Clear
Clear
82.1°F
77.6°F
71%
ENE 15.7 mph
21.8 mph
73.8°F
69°F
0 in
25%
9 mi
1019 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 78°F
L: 73°F
Patchy rain nearby
Sat
H: 70°F
L: 70°F
Partly Cloudy
Sun
H: 74°F
L: 70°F
Patchy rain nearby
Mon
H: 76°F
L: 73°F
Patchy rain nearby
Tue
H: 76°F
L: 75°F

Air Quality

PM2.5: 4.95 μg/m3
PM10: 7.55 μg/m3
Carbon Monoxide: 121.85 μg/m3
Nitrogen Dioxide: 1.55 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 90 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 7:42 PM
Daylight: 12 hrs 17 mins
Moonrise: 2:47 PM
Moon Transit: 9:44 PM
Moonset: 3:52 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

9:54 AM - 12:24 AM
9:14 PM - 11:44 PM

Minor Periods

2:17 PM - 3:47 PM
3:22 AM - 4:52 AM

Action Rating: 2 out of 5

Friday, March 27, 2026

Weather Forecast

Sunny
77.9°F
73°F
74.9°F
83%
0 in
0%
0%
17 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 6.71 μg/m3
PM10: 10.04 μg/m3
Carbon Monoxide: 128.65 μg/m3
Nitrogen Dioxide: 1.44 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 93.04 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 7:42 PM
Daylight: 12 hrs 17 mins
Moonrise: 2:47 PM
Moon Transit: 9:44 PM
Moonset: 3:52 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

9:54 AM - 12:24 AM
9:14 PM - 11:44 PM

Minor Periods

2:17 PM - 3:47 PM
3:22 AM - 4:52 AM

Action Rating: 2 out of 5

Saturday, March 28, 2026

Weather Forecast

Patchy rain nearby
70.4°F
69.6°F
70.8°F
94%
0.01 in
68%
0%
14.1 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 8.45 μg/m3
PM10: 12.5 μg/m3
Carbon Monoxide: 125.61 μg/m3
Nitrogen Dioxide: 1.54 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 90.68 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:00 AM
Sunset: 7:42 PM
Daylight: 12 hrs 19 mins
Moonrise: 3:49 PM
Moon Transit: 10:35 PM
Moonset: 4:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

10:47 AM - 1:17 PM
12:00 AM - 12:00 AM

Minor Periods

3:19 PM - 4:49 PM
4:07 AM - 5:37 AM

Action Rating: 2 out of 5

Sunday, March 29, 2026

Weather Forecast

Partly Cloudy
74.1°F
69.6°F
73.1°F
86%
0 in
0%
0%
20.8 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 7.5 μg/m3
PM10: 11.43 μg/m3
Carbon Monoxide: 130.38 μg/m3
Nitrogen Dioxide: 1.46 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 85.52 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 1:32 PM
Sunset: 7:43 PM
Daylight: 12 hrs 20 mins
Moonrise: 4:50 PM
Moon Transit: 11:22 PM
Moonset: 5:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%

Best Times for Fishing or Hunting

Major Periods

11:36 AM - 2:06 PM
12:00 AM - 12:00 AM

Minor Periods

4:20 PM - 5:50 PM
4:45 AM - 6:15 AM

Action Rating: 2 out of 5

Monday, March 30, 2026

Weather Forecast

Patchy rain nearby
75.6°F
73.4°F
74.7°F
79%
0.05 in
89%
0%
22.8 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 7.59 μg/m3
PM10: 11.93 μg/m3
Carbon Monoxide: 123.5 μg/m3
Nitrogen Dioxide: 1.54 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 78.69 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 1:32 PM
Sunset: 7:43 PM
Daylight: 12 hrs 22 mins
Moonrise: 5:46 PM
Moon Transit: 12:00 AM
Moonset: 5:50 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:21 AM - 2:51 PM

Minor Periods

5:16 PM - 6:46 PM
5:20 AM - 6:50 AM

Action Rating: 2 out of 5

Tuesday, March 31, 2026

Weather Forecast

Patchy rain nearby
75.5°F
74.7°F
74.9°F
78%
0.05 in
87%
0%
23 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 1:31 PM
Sunset: 7:44 PM
Daylight: 12 hrs 23 mins
Moonrise: 6:42 PM
Moon Transit: 12:07 AM
Moonset: 6:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:05 PM - 3:35 PM

Minor Periods

6:12 PM - 7:42 PM
5:52 AM - 7:22 AM

Action Rating: 4 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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