Water Temperature of the Gulf of Mexico in Key West, FL

Current Water Temperature

75.7°F

Measurement Time: Saturday, February 21, 2026, 1:24 AM EST

Today's Tides

 High: February 21, 12:17 AM, 1.2 ft
Low: February 21, 5:37 AM, 0.0 ft
 High: February 21, 12:10 PM, 1.5 ft
Low: February 21, 6:30 PM, -0.4 ft

Temperature Locations

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Local Points of Interest

Mallory Square; Tank Island; Florida Keys

Gulf 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

75°F
Clear
Clear
78.9°F
76.8°F
76%
SE 9.6 mph
14.1 mph
72.7°F
68.7°F
0 in
0%
9 mi
1017 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 75°F
L: 72°F
Fog
Sun
H: 71°F
L: 66°F
Sunny
Mon
H: 63°F
L: 59°F
Sunny
Tue
H: 59°F
L: 56°F
Sunny
Wed
H: 68°F
L: 60°F

Air Quality

PM2.5: 9.75 μg/m3
PM10: 13.65 μg/m3
Carbon Monoxide: 114.85 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:40 AM
Sunset: 6:26 PM
Daylight: 11 hrs 29 mins
Moonrise: 9:23 AM
Moon Transit: 4:00 PM
Moonset: 10:44 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

4:13 AM - 6:43 AM
3:30 PM - 6:00 PM

Minor Periods

10:14 PM - 11:44 PM
8:53 AM - 10:23 AM

Action Rating: 4 out of 5

Saturday, February 21, 2026

Weather Forecast

Sunny
75.2°F
72.1°F
73.2°F
87%
0 in
0%
0%
11 mph
1.8


Air Quality

AQI: 1 - Good
PM2.5: 9.42 μg/m3
PM10: 13.13 μg/m3
Carbon Monoxide: 120.69 μg/m3
Nitrogen Dioxide: 1.77 μg/m3
Sulphur Dioxide: 1.49 μg/m3
Ozone: 80.72 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:40 AM
Sunset: 6:26 PM
Daylight: 11 hrs 29 mins
Moonrise: 9:23 AM
Moon Transit: 4:00 PM
Moonset: 10:44 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

4:13 AM - 6:43 AM
3:30 PM - 6:00 PM

Minor Periods

10:14 PM - 11:44 PM
8:53 AM - 10:23 AM

Action Rating: 4 out of 5

Sunday, February 22, 2026

Weather Forecast

Fog
70.9°F
65.6°F
69.8°F
93%
0 in
0%
0%
29.5 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 9.65 μg/m3
PM10: 12.33 μg/m3
Carbon Monoxide: 118.41 μg/m3
Nitrogen Dioxide: 2.56 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:40 AM
Sunset: 6:26 PM
Daylight: 11 hrs 31 mins
Moonrise: 10:03 AM
Moon Transit: 4:52 PM
Moonset: 11:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
4:22 PM - 6:52 PM

Minor Periods

12:00 AM - 12:00 AM
9:33 AM - 11:03 AM

Action Rating: 3 out of 5

Monday, February 23, 2026

Weather Forecast

Sunny
63°F
59.2°F
61.6°F
69%
0 in
0%
0%
30.4 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 9.05 μg/m3
PM10: 12.18 μg/m3
Carbon Monoxide: 156.84 μg/m3
Nitrogen Dioxide: 1.99 μg/m3
Sulphur Dioxide: 2.41 μg/m3
Ozone: 104.56 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:40 AM
Sunset: 6:27 PM
Daylight: 11 hrs 32 mins
Moonrise: 10:47 AM
Moon Transit: 5:48 PM
Moonset: 12:49 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

5:58 AM - 8:28 AM
5:18 PM - 7:48 PM

Minor Periods

10:17 AM - 11:47 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, February 24, 2026

Weather Forecast

Sunny
58.9°F
55.8°F
57.9°F
63%
0 in
0%
0%
23.9 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 8.04 μg/m3
PM10: 11.49 μg/m3
Carbon Monoxide: 160.66 μg/m3
Nitrogen Dioxide: 1.48 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 107.62 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 12:40 AM
Sunset: 6:27 PM
Daylight: 11 hrs 33 mins
Moonrise: 11:38 AM
Moon Transit: 6:49 PM
Moonset: 12:56 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
6:19 PM - 8:49 PM

Minor Periods

11:08 AM - 12:38 AM
12:26 AM - 1:56 AM

Action Rating: 4 out of 5

Wednesday, February 25, 2026

Weather Forecast

Sunny
68.3°F
60.2°F
64.8°F
53%
0 in
0%
0%
17.2 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: 6:53 AM
Sun Transit: 12:40 AM
Sunset: 6:28 PM
Daylight: 11 hrs 35 mins
Moonrise: 12:37 AM
Moon Transit: 7:51 PM
Moonset: 2:03 AM
Moon Phase: First Quarter
Moon Illumination: 62.3%

Best Times for Fishing or Hunting

Major Periods

7:58 AM - 10:28 AM
7:21 PM - 9:51 PM

Minor Periods

12:07 AM - 1:37 PM
1:33 AM - 3:03 AM

Action Rating: 2 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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