Water Temperature of the Gulf of Mexico in Key West, FL
Current Water Temperature
74.8°F
Measurement Time: Thursday, January 8, 2026, 11:30 PM EST
Today's Tides
High: January 8, 12:57 AM, 1.5 ft
Low: January 8, 7:08 AM, 0.0 ft
High: January 8, 1:36 PM, 1.3 ft
Low: January 8, 7:27 PM, 0.2 ft
Temperature Locations
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Local Points of Interest
Mallory Square; Tank Island; Florida KeysGulf of Mexico
Station Name: Key West
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 13 feet
Sensor Depth: -4 feet
Nearest Address:
21 Angela St
Key West, FL 33040
Monroe County
GPS Coordinates: 24.55083, -81.80806
Nearby Water Temperatures
Atlantic Ocean, Key West, FL (14.1 mi)Gulf of Mexico, Marathon, FL (45.4 mi)
East Side Creek, Flamingo, FL (61.8 mi)
Joe Kemp Channel, Flamingo, FL (66.5 mi)
Florida Bay, Islamorada, FL (68.4 mi)
Shark River, Flamingo, FL (70.9 mi)
Florida Bay, Islamorada, FL (71.3 mi)
Whitewater Bay, Flamingo, FL (72 mi)
Gulf of Mexico, Flamingo, FL (72.6 mi)
Whipray Basin, Islamorada, FL (76.3 mi)
Harney River, Flamingo, FL (76.4 mi)
Florida Bay, Islamorada, FL (78 mi)
Seven Palm Lake, Flamingo, FL (80.5 mi)
Broad River, Flamingo, FL (82.1 mi)
Little Madeira Bay, Homestead, FL (85.4 mi)
Weather for Key West, Florida
Current Weather
73.9°F

Clear
78°F
77.5°F
100%
ESE 18.3 mph
27.3 mph
73.6°F
70.5°F
0 in
0%
9 mi
1020 mbar
0
Five Day Weather Forecast

Thu
H: 77°F
L: 70°F

Fri
H: 74°F
L: 72°F

Sat
H: 76°F
L: 73°F

Sun
H: 71°F
L: 67°F

Mon
H: 73°F
L: 70°F
Air Quality
AQI:
1 - Good
PM2.5:
7.05 μg/m3
PM10:
11.15 μg/m3
Carbon Monoxide: 114.85 μg/m3
Nitrogen Dioxide: 1.35 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 80 μg/m3
Nitrogen Dioxide: 1.35 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 80 μg/m3
Astronomical
Sunrise: 7:13 AM
Sun Transit: 12:34 AM
Sunset: 5:55 PM
Daylight: 10 hrs 43 mins
Sun Transit: 12:34 AM
Sunset: 5:55 PM
Daylight: 10 hrs 43 mins
Moonrise: 11:23 PM
Moon Transit: 4:45 AM
Moonset: 10:57 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%
Moon Transit: 4:45 AM
Moonset: 10:57 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%
Best Times for Fishing or Hunting
Major Periods
4:15 AM - 6:45 AM5:44 PM - 8:14 PM
Minor Periods
12:00 AM - 12:00 AM10:27 AM - 11:57 AM
Action Rating: 4 out of 5
Thursday, January 8, 2026
Weather Forecast
Patchy rain nearby
76.5°F
70.3°F
72.8°F
89%
0.16 in
89%
0%
18.3 mph
1.1
Air Quality
AQI:
1 - Good
PM2.5:
5.39 μg/m3
PM10:
8.11 μg/m3
Carbon Monoxide: 121.25 μg/m3
Nitrogen Dioxide: 1.57 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 82.68 μg/m3
Nitrogen Dioxide: 1.57 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 82.68 μg/m3
Astronomical
Sunrise: 7:13 AM
Sun Transit: 12:34 AM
Sunset: 5:55 PM
Daylight: 10 hrs 43 mins
Sun Transit: 12:34 AM
Sunset: 5:55 PM
Daylight: 10 hrs 43 mins
Moonrise: 11:23 PM
Moon Transit: 4:45 AM
Moonset: 10:57 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%
Moon Transit: 4:45 AM
Moonset: 10:57 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%
Best Times for Fishing or Hunting
Major Periods
4:15 AM - 6:45 AM5:44 PM - 8:14 PM
Minor Periods
12:00 AM - 12:00 AM10:27 AM - 11:57 AM
Action Rating: 4 out of 5
Friday, January 9, 2026
Weather Forecast
Partly Cloudy
73.6°F
72.3°F
73.3°F
85%
0 in
0%
0%
18.3 mph
1.1
Air Quality
AQI:
1 - Good
PM2.5:
6.73 μg/m3
PM10:
10.6 μg/m3
Carbon Monoxide: 116.73 μg/m3
Nitrogen Dioxide: 1.31 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 80.84 μg/m3
Nitrogen Dioxide: 1.31 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 80.84 μg/m3
Astronomical
Sunrise: 7:13 AM
Sun Transit: 12:34 AM
Sunset: 5:56 PM
Daylight: 10 hrs 43 mins
Sun Transit: 12:34 AM
Sunset: 5:56 PM
Daylight: 10 hrs 43 mins
Moonrise: 12:23 AM
Moon Transit: 5:27 AM
Moonset: 11:27 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%
Moon Transit: 5:27 AM
Moonset: 11:27 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%
Best Times for Fishing or Hunting
Major Periods
4:57 AM - 7:27 AM6:25 PM - 8:55 PM
Minor Periods
10:57 AM - 12:27 AM12:00 AM - 12:00 AM
Action Rating: 4 out of 5
Saturday, January 10, 2026
Weather Forecast
Sunny
75.9°F
72.5°F
73.8°F
86%
0 in
0%
0%
17.9 mph
1.2
Air Quality
AQI:
1 - Good
PM2.5:
6.81 μg/m3
PM10:
10.68 μg/m3
Carbon Monoxide: 115.41 μg/m3
Nitrogen Dioxide: 1.29 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 80.6 μg/m3
Nitrogen Dioxide: 1.29 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 80.6 μg/m3
Astronomical
Sunrise: 7:13 AM
Sun Transit: 12:34 AM
Sunset: 5:57 PM
Daylight: 10 hrs 44 mins
Sun Transit: 12:34 AM
Sunset: 5:57 PM
Daylight: 10 hrs 44 mins
Moonrise: 12:16 AM
Moon Transit: 6:08 AM
Moonset: 11:57 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%
Moon Transit: 6:08 AM
Moonset: 11:57 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%
Best Times for Fishing or Hunting
Major Periods
5:38 AM - 8:08 AM7:07 PM - 9:37 PM
Minor Periods
11:27 AM - 12:57 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Sunday, January 11, 2026
Weather Forecast
Cloudy
71.2°F
67.3°F
70.6°F
92%
0 in
0%
0%
17.4 mph
1.1
Air Quality
AQI:
1 - Good
PM2.5:
5.72 μg/m3
PM10:
8.57 μg/m3
Carbon Monoxide: 112.88 μg/m3
Nitrogen Dioxide: 1.51 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 77.68 μg/m3
Nitrogen Dioxide: 1.51 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 77.68 μg/m3
Astronomical
Sunrise: 7:13 AM
Sun Transit: 12:35 AM
Sunset: 5:57 PM
Daylight: 10 hrs 44 mins
Sun Transit: 12:35 AM
Sunset: 5:57 PM
Daylight: 10 hrs 44 mins
Moonrise: 1:08 AM
Moon Transit: 6:50 AM
Moonset: 12:29 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%
Moon Transit: 6:50 AM
Moonset: 12:29 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%
Best Times for Fishing or Hunting
Major Periods
6:20 AM - 8:50 AM7:49 PM - 10:19 PM
Minor Periods
11:59 AM - 1:29 PM12:38 AM - 2:08 AM
Action Rating: 2 out of 5
Monday, January 12, 2026
Weather Forecast
Patchy rain nearby
72.6°F
69.9°F
71.8°F
83%
0.01 in
88%
0%
24.4 mph
1
Air Quality
AQI:
1 - Good
PM2.5:
8.5 μg/m3
PM10:
11.5 μg/m3
Carbon Monoxide: 130.7 μg/m3
Nitrogen Dioxide: 2.23 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 82.92 μg/m3
Nitrogen Dioxide: 2.23 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 82.92 μg/m3
Astronomical
Sunrise: 7:13 AM
Sun Transit: 12:35 AM
Sunset: 5:58 PM
Daylight: 10 hrs 45 mins
Sun Transit: 12:35 AM
Sunset: 5:58 PM
Daylight: 10 hrs 45 mins
Moonrise: 2:01 AM
Moon Transit: 7:34 AM
Moonset: 1:03 PM
Moon Phase: Last Quarter
Moon Illumination: 25.0%
Moon Transit: 7:34 AM
Moonset: 1:03 PM
Moon Phase: Last Quarter
Moon Illumination: 25.0%
Best Times for Fishing or Hunting
Major Periods
7:04 AM - 9:34 AM8:34 PM - 11:04 PM
Minor Periods
12:33 AM - 2:03 PM1:31 AM - 3:01 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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