Water Temperature of the Atlantic Ocean in Key West, FL

Current Water Temperature

85.8°F

Measurement Time: Sunday, July 20, 2025, 11:00 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

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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 / 0 meters

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 (58.0 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

84.9°F
Cloudy
Conditions: Cloudy
Humidity: 77%
Feels Like: 96.9°F
Wind: SSE 8.7 mph
Wind Gusts: 13.1 mph
Pressure: 30.07 in
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Overcast
Wed
H: 85°F
L: 81°F
Sunny
Thu
H: 86°F
L: 83°F
Patchy rain nearby
Fri
H: 85°F
L: 83°F
Patchy rain nearby
Sat
H: 85°F
L: 83°F
Patchy rain nearby
Sun
H: 85°F
L: 84°F

Air Quality

PM2.5: 9.07 μg/m3
PM10: 14.8 μg/m3
Carbon Monoxide: 173.9 μg/m3
Nitrogen Dioxide: 1.11 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 57 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:34 PM
Sunset: 8:16 PM
Daylight: 13 hrs 24 mins
Moonrise: 5:24 AM
Moon Transit: 12:36 AM
Moonset: 7:44 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:42 AM - 3:12 AM
12:06 AM - 2:36 PM

Minor Periods

7:14 PM - 8:44 PM
4:54 AM - 6:24 AM

Action Rating: 4 out of 5

Wednesday, July 23, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 83.8°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 19.2 mph
UV Index: 1.2

Air Quality

AQI: 1 - Good
PM2.5: 6.99 μg/m3
PM10: 10.71 μg/m3
Carbon Monoxide: 192.03 μg/m3
Nitrogen Dioxide: 1.15 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 57.76 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:34 PM
Sunset: 8:16 PM
Daylight: 13 hrs 24 mins
Moonrise: 5:24 AM
Moon Transit: 12:36 AM
Moonset: 7:44 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:42 AM - 3:12 AM
12:06 AM - 2:36 PM

Minor Periods

7:14 PM - 8:44 PM
4:54 AM - 6:24 AM

Action Rating: 4 out of 5

Thursday, July 24, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 84°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 18.6 mph
UV Index: 2.9

Air Quality

AQI: 1 - Good
PM2.5: 10.79 μg/m3
PM10: 17.97 μg/m3
Carbon Monoxide: 180.56 μg/m3
Nitrogen Dioxide: 0.93 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 59.84 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:34 PM
Sunset: 8:16 PM
Daylight: 13 hrs 23 mins
Moonrise: 6:31 AM
Moon Transit: 1:34 PM
Moonset: 8:33 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

1:42 AM - 4:12 AM
1:04 PM - 3:34 PM

Minor Periods

8:03 PM - 9:33 PM
6:01 AM - 7:31 AM

Action Rating: 4 out of 5

Friday, July 25, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 84.1°F
Average Humidity: 82%
Chance of Rain: 81%
Wind: 21.9 mph
UV Index: 2.7

Air Quality

AQI: 2 - Moderate
PM2.5: 17.68 μg/m3
PM10: 45.94 μg/m3
Carbon Monoxide: 183.08 μg/m3
Nitrogen Dioxide: 0.92 μg/m3
Sulphur Dioxide: 0.34 μg/m3
Ozone: 40.64 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:34 PM
Sunset: 8:15 PM
Daylight: 13 hrs 22 mins
Moonrise: 7:35 AM
Moon Transit: 2:27 PM
Moonset: 9:14 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

2:38 AM - 5:08 AM
1:57 PM - 4:27 PM

Minor Periods

8:44 PM - 10:14 PM
7:05 AM - 8:35 AM

Action Rating: 5 out of 5

Saturday, July 26, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 84.3°F
Average Humidity: 70%
Chance of Rain: 89%
Wind: 19.7 mph
UV Index: 2.6

Air Quality

AQI: 2 - Moderate
PM2.5: 19.2 μg/m3
PM10: 37.84 μg/m3
Carbon Monoxide: 179.45 μg/m3
Nitrogen Dioxide: 1.14 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 37.92 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:34 PM
Sunset: 8:15 PM
Daylight: 13 hrs 21 mins
Moonrise: 8:37 AM
Moon Transit: 3:16 PM
Moonset: 9:50 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

3:30 AM - 6:00 AM
2:46 PM - 5:16 PM

Minor Periods

9:20 PM - 10:50 PM
8:07 AM - 9:37 AM

Action Rating: 3 out of 5

Sunday, July 27, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 84.4°F
Average Humidity: 70%
Chance of Rain: 89%
Wind: 17.2 mph
UV Index: 0.1

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: 6:54 AM
Sun Transit: 1:34 PM
Sunset: 8:14 PM
Daylight: 13 hrs 20 mins
Moonrise: 9:33 AM
Moon Transit: 4:00 PM
Moonset: 10:22 PM
Moon Phase: New
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

4:15 AM - 6:45 AM
3:30 PM - 6:00 PM

Minor Periods

9:52 PM - 11:22 PM
9:03 AM - 10:33 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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