Water Temperature of the Atlantic Ocean in Key West, FL

Current Water Temperature

85.6°F

Measurement Time: Tuesday, May 12, 2026, 3:00 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

87.1°F
Sunny
Sunny
100.7°F
93.4°F
63%
ESE 2.2 mph
6.7 mph
84.2°F
76.6°F
0 in
25%
9 mi
1013 mbar
3.8

Five Day Weather Forecast

Patchy rain nearby
Tue
H: 85°F
L: 80°F
Sunny
Wed
H: 82°F
L: 81°F
Patchy rain nearby
Thu
H: 81°F
L: 80°F
Sunny
Fri
H: 81°F
L: 79°F
Sunny
Sat
H: 83°F
L: 80°F

Air Quality

AQI: 1 - Good
PM2.5: 5.55 μg/m3
PM10: 8.25 μg/m3
Carbon Monoxide: 122.85 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:24 PM
Sunset: 8:03 PM
Daylight: 13 hrs 17 mins
Moonrise: 3:36 AM
Moon Transit: 9:42 AM
Moonset: 3:54 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.3%

Best Times for Fishing or Hunting

Major Periods

9:11 PM - 11:41 PM
9:12 AM - 11:42 AM

Minor Periods

3:24 PM - 4:54 PM
3:06 AM - 4:36 AM

Action Rating: 2 out of 5

Tuesday, May 12, 2026

Weather Forecast

Patchy rain nearby
85.1°F
80.4°F
82.5°F
80%
0.11 in
76%
0%
10.7 mph
10.9


Air Quality

AQI: 1 - Good
PM2.5: 6.52 μg/m3
PM10: 9.86 μg/m3
Carbon Monoxide: 123.25 μg/m3
Nitrogen Dioxide: 1.55 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 63.16 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:24 PM
Sunset: 8:03 PM
Daylight: 13 hrs 17 mins
Moonrise: 3:36 AM
Moon Transit: 9:42 AM
Moonset: 3:54 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.3%

Best Times for Fishing or Hunting

Major Periods

9:11 PM - 11:41 PM
9:12 AM - 11:42 AM

Minor Periods

3:24 PM - 4:54 PM
3:06 AM - 4:36 AM

Action Rating: 2 out of 5

Wednesday, May 13, 2026

Weather Forecast

Sunny
81.9°F
80.6°F
81.3°F
73%
0 in
0%
0%
13.2 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 5.95 μg/m3
PM10: 8.51 μg/m3
Carbon Monoxide: 116.57 μg/m3
Nitrogen Dioxide: 1.67 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 64.12 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:24 PM
Sunset: 8:03 PM
Daylight: 13 hrs 18 mins
Moonrise: 4:10 AM
Moon Transit: 12:00 AM
Moonset: 4:55 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:25 PM - 5:55 PM
3:40 AM - 5:10 AM

Action Rating: 2 out of 5

Thursday, May 14, 2026

Weather Forecast

Patchy rain nearby
80.7°F
79.9°F
80.6°F
73%
0.03 in
88%
0%
13 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 7.2 μg/m3
PM10: 10.07 μg/m3
Carbon Monoxide: 121.33 μg/m3
Nitrogen Dioxide: 1.37 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 70.96 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:24 PM
Sunset: 8:04 PM
Daylight: 13 hrs 19 mins
Moonrise: 4:46 AM
Moon Transit: 11:18 AM
Moonset: 5:58 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:48 AM - 1:18 PM

Minor Periods

5:28 PM - 6:58 PM
4:16 AM - 5:46 AM

Action Rating: 2 out of 5

Friday, May 15, 2026

Weather Forecast

Sunny
80.5°F
78.8°F
79.8°F
63%
0 in
0%
0%
10.7 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 5.65 μg/m3
PM10: 7.75 μg/m3
Carbon Monoxide: 146.55 μg/m3
Nitrogen Dioxide: 1.47 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 78.08 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:24 PM
Sunset: 8:04 PM
Daylight: 13 hrs 20 mins
Moonrise: 5:26 AM
Moon Transit: 12:12 AM
Moonset: 7:06 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:21 AM - 2:51 AM
11:42 AM - 2:12 PM

Minor Periods

6:36 PM - 8:06 PM
4:56 AM - 6:26 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Sunny
82.9°F
80.3°F
81.8°F
65%
0 in
0%
0%
15.9 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 7.28 μg/m3
PM10: 10.56 μg/m3
Carbon Monoxide: 136.1 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 75.31 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 1:24 PM
Sunset: 8:05 PM
Daylight: 13 hrs 21 mins
Moonrise: 6:13 AM
Moon Transit: 1:12 PM
Moonset: 8:18 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

1:18 AM - 3:48 AM
12:42 AM - 3:12 PM

Minor Periods

7:48 PM - 9:18 PM
5:43 AM - 7:13 AM

Action Rating: 5 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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