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

Current Water Temperature

Current temperature data is
not available at this time.

Today's Tides

 High: April 8, 3:10 AM, 0.7 ft
Low: April 8, 6:50 AM, 0.5 ft
 High: April 8, 2:08 PM, 1.5 ft
Low: April 8, 9:41 PM, 0.0 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

79°F
Partly cloudy
Partly cloudy
84.5°F
79.3°F
77%
ENE 5.1 mph
7.7 mph
75.5°F
70.7°F
0.03 in
50%
9 mi
1015 mbar
10.3

Five Day Weather Forecast

Moderate rain
Wed
H: 77°F
L: 74°F
Moderate rain
Thu
H: 78°F
L: 75°F
Heavy rain
Fri
H: 77°F
L: 75°F
Partly Cloudy
Sat
H: 77°F
L: 75°F
Patchy rain nearby
Sun
H: 76°F
L: 75°F

Air Quality

AQI: 1 - Good
PM2.5: 4.45 μg/m3
PM10: 6.15 μg/m3
Carbon Monoxide: 122.85 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 1:29 PM
Sunset: 7:46 PM
Daylight: 12 hrs 35 mins
Moonrise: 1:03 AM
Moon Transit: 6:16 AM
Moonset: 11:30 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:46 AM - 8:16 AM
7:20 PM - 9:50 PM

Minor Periods

11:00 AM - 12:30 AM
12:33 AM - 2:03 AM

Action Rating: 3 out of 5

Coastal Flood Statement issued April 8 at 4:21AM EDT until April 9 at 5:00AM EDT by NWS Key West FL

Effective: Wed April 8, 2026, 8:21 AM
Expires: Wed April 8, 2026, 4:30 PM

* WHAT...Minor saltwater flooding. * WHERE...Upper and Middle Florida Keys. * WHEN...Through late tonight. * IMPACTS...Minor saltwater flooding of low elevation streets and lots is likely. Some storm drains will overflow, and some seawalls and docks will be overtopped. Boaters can expect less clearance under fixed bridges. Motorists should remember that persistent puddles around the times of high tide are almost certain to contain a mix of saltwater. * ADDITIONAL DETAILS...Strong to gale force winds north of the Florida Keys are generating enhanced swell along the western coastline of Florida. The swell, in turn, is causing elevated waters along the Middle and Upper Keys.

Do not drive through flooded roadways.
Wednesday, April 8, 2026

Weather Forecast

Moderate rain
76.8°F
73.6°F
75.2°F
83%
0.28 in
87%
0%
12.5 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 4.19 μg/m3
PM10: 5.79 μg/m3
Carbon Monoxide: 121.53 μg/m3
Nitrogen Dioxide: 1.54 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 81.76 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 1:29 PM
Sunset: 7:46 PM
Daylight: 12 hrs 35 mins
Moonrise: 1:03 AM
Moon Transit: 6:16 AM
Moonset: 11:30 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:46 AM - 8:16 AM
7:20 PM - 9:50 PM

Minor Periods

11:00 AM - 12:30 AM
12:33 AM - 2:03 AM

Action Rating: 3 out of 5

Thursday, April 9, 2026

Weather Forecast

Moderate rain
77.9°F
74.5°F
75.6°F
81%
0.34 in
84%
0%
25.7 mph
2.5


Air Quality

AQI: 1 - Good
PM2.5: 5.25 μg/m3
PM10: 7.33 μg/m3
Carbon Monoxide: 122.33 μg/m3
Nitrogen Dioxide: 1.38 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 89.88 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 1:28 PM
Sunset: 7:47 PM
Daylight: 12 hrs 36 mins
Moonrise: 1:53 AM
Moon Transit: 7:08 AM
Moonset: 12:25 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
8:11 PM - 10:41 PM

Minor Periods

11:55 AM - 1:25 PM
1:23 AM - 2:53 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Heavy rain
77°F
74.7°F
75.4°F
82%
0.89 in
88%
0%
27.5 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 5.92 μg/m3
PM10: 8.29 μg/m3
Carbon Monoxide: 129.93 μg/m3
Nitrogen Dioxide: 1.72 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 96.52 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 1:28 PM
Sunset: 7:47 PM
Daylight: 12 hrs 37 mins
Moonrise: 2:39 AM
Moon Transit: 7:58 AM
Moonset: 1:21 PM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

7:28 AM - 9:58 AM
9:00 PM - 11:30 PM

Minor Periods

12:51 AM - 2:21 PM
2:09 AM - 3:39 AM

Action Rating: 3 out of 5

Saturday, April 11, 2026

Weather Forecast

Partly Cloudy
76.5°F
75.2°F
75.8°F
76%
0 in
0%
0%
26.2 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 6.33 μg/m3
PM10: 9.81 μg/m3
Carbon Monoxide: 130.8 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 98.84 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 1:28 PM
Sunset: 7:48 PM
Daylight: 12 hrs 39 mins
Moonrise: 3:20 AM
Moon Transit: 8:47 AM
Moonset: 2:18 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

8:17 AM - 10:47 AM
12:00 AM - 12:00 AM

Minor Periods

1:48 PM - 3:18 PM
2:50 AM - 4:20 AM

Action Rating: 2 out of 5

Sunday, April 12, 2026

Weather Forecast

Patchy rain nearby
76.4°F
75.2°F
76°F
65%
0.03 in
89%
0%
26.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 7.33 μg/m3
PM10: 11.53 μg/m3
Carbon Monoxide: 127.22 μg/m3
Nitrogen Dioxide: 1.37 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 103.15 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 1:27 PM
Sunset: 7:48 PM
Daylight: 12 hrs 40 mins
Moonrise: 3:58 AM
Moon Transit: 9:34 AM
Moonset: 3:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:04 AM - 11:34 AM

Minor Periods

2:45 PM - 4:15 PM
3:28 AM - 4:58 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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