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

Current Water Temperature

88.0°F

Measurement Time: Sunday, July 12, 2026, 3:00 PM EDT

Today's Tides

Low: July 12, 1:06 AM, 0.5 ft
 High: July 12, 8:12 AM, 2.1 ft
Low: July 12, 3:21 PM, -0.5 ft
 High: July 12, 10:20 PM, 0.9 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

89.1°F
Partly cloudy
Partly cloudy
103.1°F
96.6°F
70%
E 11.2 mph
15.1 mph
86.5°F
76°F
0 in
50%
8 mi
1021 mbar
8.7

Five Day Weather Forecast

Sunny
Sun
H: 88°F
L: 84°F
Sunny
Mon
H: 84°F
L: 84°F
Partly Cloudy
Tue
H: 85°F
L: 82°F
Partly Cloudy
Wed
H: 85°F
L: 84°F
Partly Cloudy
Thu
H: 85°F
L: 84°F

Air Quality

AQI: 2 - Moderate
PM2.5: 19.3 μg/m3
PM10: 49.4 μg/m3
Carbon Monoxide: 89 μg/m3
Nitrogen Dioxide: 0.3 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 51 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:32 PM
Sunset: 8:19 PM
Daylight: 13 hrs 33 mins
Moonrise: 4:30 AM
Moon Transit: 11:45 AM
Moonset: 7:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:15 AM - 1:45 PM

Minor Periods

6:30 PM - 8:00 PM
4:00 AM - 5:30 AM

Action Rating: 3 out of 5

Sunday, July 12, 2026

Weather Forecast

Sunny
88°F
84.2°F
85.5°F
75%
0 in
8%
0%
16.3 mph
10.3


Air Quality

AQI: 2 - Moderate
PM2.5: 20.61 μg/m3
PM10: 54.35 μg/m3
Carbon Monoxide: 89.5 μg/m3
Nitrogen Dioxide: 0.58 μg/m3
Sulphur Dioxide: 0.34 μg/m3
Ozone: 47 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:32 PM
Sunset: 8:19 PM
Daylight: 13 hrs 33 mins
Moonrise: 4:30 AM
Moon Transit: 11:45 AM
Moonset: 7:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:15 AM - 1:45 PM

Minor Periods

6:30 PM - 8:00 PM
4:00 AM - 5:30 AM

Action Rating: 3 out of 5

Monday, July 13, 2026

Weather Forecast

Sunny
84.4°F
83.7°F
84°F
74%
0 in
9%
0%
15.2 mph
10.6


Air Quality

AQI: 2 - Moderate
PM2.5: 25.58 μg/m3
PM10: 56.01 μg/m3
Carbon Monoxide: 89.71 μg/m3
Nitrogen Dioxide: 0.51 μg/m3
Sulphur Dioxide: 0.33 μg/m3
Ozone: 43.75 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:33 PM
Sunset: 8:19 PM
Daylight: 13 hrs 32 mins
Moonrise: 5:38 AM
Moon Transit: 12:51 AM
Moonset: 8:02 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:57 AM - 3:27 AM
12:21 AM - 2:51 PM

Minor Periods

7:32 PM - 9:02 PM
5:08 AM - 6:38 AM

Action Rating: 4 out of 5

Tuesday, July 14, 2026

Weather Forecast

Partly Cloudy
84.7°F
82°F
83.8°F
75%
0 in
12%
0%
19.5 mph
10.1


Air Quality

AQI: 2 - Moderate
PM2.5: 26.2 μg/m3
PM10: 69.74 μg/m3
Carbon Monoxide: 91.13 μg/m3
Nitrogen Dioxide: 0.52 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 45.96 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:33 PM
Sunset: 8:19 PM
Daylight: 13 hrs 31 mins
Moonrise: 6:50 AM
Moon Transit: 1:55 PM
Moonset: 8:55 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

2:02 AM - 4:32 AM
1:25 PM - 3:55 PM

Minor Periods

8:25 PM - 9:55 PM
6:20 AM - 7:50 AM

Action Rating: 5 out of 5

Wednesday, July 15, 2026

Weather Forecast

Partly Cloudy
84.8°F
84.2°F
84.5°F
72%
0 in
10%
0%
17.2 mph
9.6


Air Quality

AQI: 2 - Moderate
PM2.5: 21.14 μg/m3
PM10: 53.96 μg/m3
Carbon Monoxide: 94.37 μg/m3
Nitrogen Dioxide: 0.62 μg/m3
Sulphur Dioxide: 0.29 μg/m3
Ozone: 43.79 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:33 PM
Sunset: 8:19 PM
Daylight: 13 hrs 31 mins
Moonrise: 8:01 AM
Moon Transit: 2:54 PM
Moonset: 9:41 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

3:03 AM - 5:33 AM
2:24 PM - 4:54 PM

Minor Periods

9:11 PM - 10:41 PM
7:31 AM - 9:01 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Partly Cloudy
84.8°F
84.3°F
84.6°F
72%
0.04 in
47%
0%
20.1 mph
7


Air Quality

AQI: 2 - Moderate
PM2.5: 22.84 μg/m3
PM10: 53.2 μg/m3
Carbon Monoxide: 88.56 μg/m3
Nitrogen Dioxide: 0.73 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 41.44 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:33 PM
Sunset: 8:18 PM
Daylight: 13 hrs 30 mins
Moonrise: 9:07 AM
Moon Transit: 3:47 PM
Moonset: 10:20 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

3:59 AM - 6:29 AM
3:17 PM - 5:47 PM

Minor Periods

9:50 PM - 11:20 PM
8:37 AM - 10:07 AM

Action Rating: 4 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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