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: March 25, 4:42 AM, 0.6 ft
Low: March 25, 8:08 AM, 0.4 ft
 High: March 25, 3:21 PM, 1.6 ft
Low: March 25, 10:56 PM, -0.2 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

80.1°F
Sunny
Sunny
82.5°F
79°F
58%
ENE 9.4 mph
12.7 mph
76.7°F
62.4°F
0 in
25%
9 mi
1020 mbar
8.1

Five Day Weather Forecast

Sunny
Wed
H: 79°F
L: 71°F
Overcast
Thu
H: 76°F
L: 71°F
Cloudy
Fri
H: 73°F
L: 71°F
Cloudy
Sat
H: 76°F
L: 69°F
Patchy rain nearby
Sun
H: 75°F
L: 74°F

Air Quality

AQI: 1 - Good
PM2.5: 9.95 μg/m3
PM10: 13.75 μg/m3
Carbon Monoxide: 142.85 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 116 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:00 AM
Sunset: 7:40 PM
Daylight: 12 hrs 15 mins
Moonrise: 12:35 AM
Moon Transit: 7:48 PM
Moonset: 2:01 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
7:18 PM - 9:48 PM

Minor Periods

12:05 AM - 1:35 PM
1:31 AM - 3:01 AM

Action Rating: 4 out of 5

Special Weather Statement issued March 25 at 7:59AM EDT by NWS Miami FL

Effective: Wed March 25, 2026, 11:59 AM
Expires: Wed March 25, 2026, 1:00 PM

Areas of dense fog continue over inland portions of South FL. Visibility will be reduced to under a half mile at times. Conditions should quickly improve over the next hour. Motorists should use caution if traveling. Allow extra time to reach your destination and use low-beam headlights only.


Wednesday, March 25, 2026

Weather Forecast

Sunny
78.6°F
70.5°F
74.2°F
69%
0 in
0%
0%
12.3 mph
2.2


Air Quality

AQI: 1 - Good
PM2.5: 9.31 μg/m3
PM10: 12.89 μg/m3
Carbon Monoxide: 139.13 μg/m3
Nitrogen Dioxide: 1.5 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 114.52 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:00 AM
Sunset: 7:40 PM
Daylight: 12 hrs 15 mins
Moonrise: 12:35 AM
Moon Transit: 7:48 PM
Moonset: 2:01 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
7:18 PM - 9:48 PM

Minor Periods

12:05 AM - 1:35 PM
1:31 AM - 3:01 AM

Action Rating: 4 out of 5

Thursday, March 26, 2026

Weather Forecast

Overcast
75.7°F
71.2°F
72.6°F
78%
0 in
0%
0%
16.6 mph
2.2


Air Quality

AQI: 1 - Good
PM2.5: 9.03 μg/m3
PM10: 12.63 μg/m3
Carbon Monoxide: 148.89 μg/m3
Nitrogen Dioxide: 1.28 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 105.32 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:00 AM
Sunset: 7:41 PM
Daylight: 12 hrs 16 mins
Moonrise: 1:40 PM
Moon Transit: 8:48 PM
Moonset: 3:00 AM
Moon Phase: First Quarter
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

8:57 AM - 11:27 AM
8:18 PM - 10:48 PM

Minor Periods

1:10 PM - 2:40 PM
2:30 AM - 4:00 AM

Action Rating: 2 out of 5

Friday, March 27, 2026

Weather Forecast

Cloudy
72.9°F
71.1°F
71.9°F
93%
0 in
0%
0%
15.9 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 6.39 μg/m3
PM10: 9.52 μg/m3
Carbon Monoxide: 144.97 μg/m3
Nitrogen Dioxide: 1.39 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 91.84 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 7:41 PM
Daylight: 12 hrs 18 mins
Moonrise: 2:46 PM
Moon Transit: 9:43 PM
Moonset: 3:51 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

9:54 AM - 12:24 AM
9:13 PM - 11:43 PM

Minor Periods

2:16 PM - 3:46 PM
3:21 AM - 4:51 AM

Action Rating: 2 out of 5

Saturday, March 28, 2026

Weather Forecast

Cloudy
75.5°F
68.9°F
71.7°F
89%
0 in
0%
0%
18.3 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 7.24 μg/m3
PM10: 10.7 μg/m3
Carbon Monoxide: 133.62 μg/m3
Nitrogen Dioxide: 1.5 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 88.2 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:00 AM
Sunset: 7:42 PM
Daylight: 12 hrs 19 mins
Moonrise: 3:49 PM
Moon Transit: 10:35 PM
Moonset: 4:36 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

10:47 AM - 1:17 PM
12:00 AM - 12:00 AM

Minor Periods

3:19 PM - 4:49 PM
4:06 AM - 5:36 AM

Action Rating: 2 out of 5

Sunday, March 29, 2026

Weather Forecast

Patchy rain nearby
75°F
74.4°F
74.7°F
78%
0.08 in
89%
0%
26.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 8.89 μg/m3
PM10: 12.65 μg/m3
Carbon Monoxide: 133.03 μg/m3
Nitrogen Dioxide: 2.23 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 92.08 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 1:31 PM
Sunset: 7:42 PM
Daylight: 12 hrs 20 mins
Moonrise: 4:49 PM
Moon Transit: 11:22 PM
Moonset: 5:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%

Best Times for Fishing or Hunting

Major Periods

11:36 AM - 2:06 PM
12:00 AM - 12:00 AM

Minor Periods

4:19 PM - 5:49 PM
4:45 AM - 6:15 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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