Water Temperature of the Atlantic Ocean in Key West, FL

Current Water Temperature

83.8°F

Measurement Time: Monday, June 8, 2026, 11:30 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

85.3°F
Clear
Clear
93.7°F
93.7°F
71%
SE 14.3 mph
19.3 mph
85.3°F
74.8°F
0 in
0%
6 mi
1016 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 87°F
L: 82°F
Sunny
Sun
H: 89°F
L: 84°F
Partly Cloudy
Mon
H: 85°F
L: 84°F
Partly Cloudy
Tue
H: 86°F
L: 84°F
Sunny
Wed
H: 85°F
L: 84°F

Air Quality

AQI: 1 - Good
PM2.5: 7.9 μg/m3
PM10: 18.5 μg/m3
Carbon Monoxide: 88 μg/m3
Nitrogen Dioxide: 0.8 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 43 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:34 PM
Sunset: 8:18 PM
Daylight: 13 hrs 28 mins
Moonrise: 11:09 AM
Moon Transit: 5:22 PM
Moonset: 11:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

5:36 AM - 8:06 AM
4:52 PM - 7:22 PM

Minor Periods

12:00 AM - 12:00 AM
10:39 AM - 12:09 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
87.1°F
82°F
85.1°F
74%
0.02 in
36%
0%
14.3 mph
9.4


Air Quality

AQI: 1 - Good
PM2.5: 14.88 μg/m3
PM10: 36.66 μg/m3
Carbon Monoxide: 90.13 μg/m3
Nitrogen Dioxide: 0.61 μg/m3
Sulphur Dioxide: 0.47 μg/m3
Ozone: 48.33 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:34 PM
Sunset: 8:18 PM
Daylight: 13 hrs 28 mins
Moonrise: 11:09 AM
Moon Transit: 5:22 PM
Moonset: 11:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

5:36 AM - 8:06 AM
4:52 PM - 7:22 PM

Minor Periods

12:00 AM - 12:00 AM
10:39 AM - 12:09 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
88.5°F
83.6°F
84.7°F
75%
0.06 in
57%
0%
20.1 mph
11


Air Quality

AQI: 1 - Good
PM2.5: 14.77 μg/m3
PM10: 29.62 μg/m3
Carbon Monoxide: 94.96 μg/m3
Nitrogen Dioxide: 0.76 μg/m3
Sulphur Dioxide: 2 μg/m3
Ozone: 69.29 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:34 PM
Sunset: 8:18 PM
Daylight: 13 hrs 27 mins
Moonrise: 12:05 AM
Moon Transit: 6:05 PM
Moonset: 12:29 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

6:20 AM - 8:50 AM
5:35 PM - 8:05 PM

Minor Periods

11:35 AM - 1:05 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, July 20, 2026

Weather Forecast

Partly Cloudy
85.4°F
84.1°F
85°F
69%
0.03 in
36%
0%
10.7 mph
11.2


Air Quality

AQI: 1 - Good
PM2.5: 14.98 μg/m3
PM10: 26.91 μg/m3
Carbon Monoxide: 99.5 μg/m3
Nitrogen Dioxide: 0.8 μg/m3
Sulphur Dioxide: 2.46 μg/m3
Ozone: 81.42 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:34 PM
Sunset: 8:18 PM
Daylight: 13 hrs 26 mins
Moonrise: 1:00 PM
Moon Transit: 6:49 PM
Moonset: 12:01 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:03 AM - 9:33 AM
6:19 PM - 8:49 PM

Minor Periods

12:30 AM - 2:00 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 21, 2026

Weather Forecast

Partly Cloudy
85.5°F
84.1°F
84.7°F
70%
0.01 in
17%
0%
14.5 mph
11.6


Air Quality

AQI: 1 - Good
PM2.5: 10.81 μg/m3
PM10: 19.53 μg/m3
Carbon Monoxide: 88.04 μg/m3
Nitrogen Dioxide: 0.64 μg/m3
Sulphur Dioxide: 0.42 μg/m3
Ozone: 54.58 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:34 PM
Sunset: 8:17 PM
Daylight: 13 hrs 26 mins
Moonrise: 1:55 PM
Moon Transit: 7:33 PM
Moonset: 12:34 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

7:47 AM - 10:17 AM
7:03 PM - 9:33 PM

Minor Periods

1:25 PM - 2:55 PM
12:04 AM - 1:34 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
85.4°F
84.3°F
84.9°F
66%
0.01 in
17%
0%
15.2 mph
11.3


Air Quality

AQI: 1 - Good
PM2.5: 10.42 μg/m3
PM10: 19.92 μg/m3
Carbon Monoxide: 88.42 μg/m3
Nitrogen Dioxide: 0.59 μg/m3
Sulphur Dioxide: 0.36 μg/m3
Ozone: 55.67 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:34 PM
Sunset: 8:17 PM
Daylight: 13 hrs 25 mins
Moonrise: 2:50 PM
Moon Transit: 8:19 PM
Moonset: 1:07 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

8:32 AM - 11:02 AM
7:49 PM - 10:19 PM

Minor Periods

2:20 PM - 3:50 PM
12:37 AM - 2:07 AM

Action Rating: 3 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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