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

Current Water Temperature

69.4°F

Measurement Time: Tuesday, January 20, 2026, 12:30 AM EST

Today's Tides

Low: January 20, 4:42 AM, -0.4 ft
 High: January 20, 11:20 AM, 1.0 ft
Low: January 20, 4:07 PM, 0.1 ft
 High: January 20, 10:55 PM, 1.7 ft

Temperature Locations

View Nearby Locations     View All Florida Locations     View Locations Near Me

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

63°F
Overcast
Overcast
63°F
63.7°F
67%
NNE 15.7 mph
19.6 mph
63.6°F
51.2°F
0 in
100%
9 mi
1023 mbar
0

Five Day Weather Forecast

Overcast
Tue
H: 70°F
L: 63°F
Partly Cloudy
Wed
H: 71°F
L: 68°F
Partly Cloudy
Thu
H: 74°F
L: 70°F
Patchy rain nearby
Fri
H: 75°F
L: 69°F
Partly Cloudy
Sat
H: 74°F
L: 72°F

Air Quality

PM2.5: 8.15 μg/m3
PM10: 11.25 μg/m3
Carbon Monoxide: 151.85 μg/m3
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 12:38 AM
Sunset: 6:04 PM
Daylight: 10 hrs 52 mins
Moonrise: 8:33 AM
Moon Transit: 2:12 PM
Moonset: 7:57 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
1:42 PM - 4:12 PM

Minor Periods

7:27 PM - 8:57 PM
8:03 AM - 9:33 AM

Action Rating: 3 out of 5

Tuesday, January 20, 2026

Weather Forecast

Overcast
70.3°F
62.8°F
65.8°F
73%
0 in
0%
0%
28.2 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 9.04 μg/m3
PM10: 11.94 μg/m3
Carbon Monoxide: 159.85 μg/m3
Nitrogen Dioxide: 2.49 μg/m3
Sulphur Dioxide: 2.04 μg/m3
Ozone: 95.92 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 12:38 AM
Sunset: 6:04 PM
Daylight: 10 hrs 52 mins
Moonrise: 8:33 AM
Moon Transit: 2:12 PM
Moonset: 7:57 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
1:42 PM - 4:12 PM

Minor Periods

7:27 PM - 8:57 PM
8:03 AM - 9:33 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Partly Cloudy
71.4°F
67.8°F
69.8°F
80%
0 in
0%
0%
24.8 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 7.93 μg/m3
PM10: 11.83 μg/m3
Carbon Monoxide: 142.5 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 96.36 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 12:38 AM
Sunset: 6:05 PM
Daylight: 10 hrs 53 mins
Moonrise: 9:07 AM
Moon Transit: 2:58 PM
Moonset: 8:54 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

3:13 AM - 5:43 AM
2:28 PM - 4:58 PM

Minor Periods

8:24 PM - 9:54 PM
8:37 AM - 10:07 AM

Action Rating: 2 out of 5

Thursday, January 22, 2026

Weather Forecast

Partly Cloudy
73.6°F
70.1°F
72.1°F
91%
0 in
0%
0%
20.6 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 5.35 μg/m3
PM10: 8.11 μg/m3
Carbon Monoxide: 111.6 μg/m3
Nitrogen Dioxide: 1.54 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 76.4 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 12:38 AM
Sunset: 6:06 PM
Daylight: 10 hrs 54 mins
Moonrise: 9:40 AM
Moon Transit: 3:42 PM
Moonset: 9:51 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

3:57 AM - 6:27 AM
3:12 PM - 5:42 PM

Minor Periods

9:21 PM - 10:51 PM
9:10 AM - 10:40 AM

Action Rating: 3 out of 5

Friday, January 23, 2026

Weather Forecast

Patchy rain nearby
74.8°F
68.9°F
72.2°F
89%
0.09 in
75%
0%
17.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.81 μg/m3
PM10: 7 μg/m3
Carbon Monoxide: 102 μg/m3
Nitrogen Dioxide: 2.17 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 12:39 AM
Sunset: 6:06 PM
Daylight: 10 hrs 55 mins
Moonrise: 10:13 AM
Moon Transit: 9:54 AM
Moonset: 10:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

9:24 AM - 11:54 AM
9:24 AM - 11:54 AM

Minor Periods

10:19 PM - 11:49 PM
9:43 AM - 11:13 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Partly Cloudy
74.3°F
71.6°F
72.6°F
87%
0 in
0%
0%
12.1 mph
6


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: 7:12 AM
Sun Transit: 12:39 AM
Sunset: 6:07 PM
Daylight: 10 hrs 56 mins
Moonrise: 10:46 AM
Moon Transit: 5:13 PM
Moonset: 11:48 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:43 PM - 7:13 PM

Minor Periods

12:00 AM - 12:00 AM
10:16 AM - 11:46 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.

Webcams Near Key West, FL

Sponsored Content