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

Current Water Temperature

84.0°F

Measurement Time: Saturday, May 10, 2025, 11:48 PM EDT

Today's Tides

 Low: May 11, 3:07 AM, 0.48 ft
High: May 11, 9:32 AM, 1.77 ft
 Low: May 11, 4:14 PM, -0.21 ft
High: May 11, 10:58 PM, 1.11 ft

Temperature Locations

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Local Points of Interest

Mallory Square; Tank Island; Florida Keys

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Gulf of Mexico

Station Name: Key West
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 13 feet / 4 meters

Sensor Depth: -3.6 feet / -1.1 meters

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 (72.0 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 (78.0 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
Conditions: Partly cloudy
Humidity: 90%
Feels Like: 84.8°F
Wind: ESE 18.3 mph
Wind Gusts: 25.5 mph
Pressure: 30.04 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Cloudy
Sun
H: 80°F
L: 79°F
Cloudy
Mon
H: 80°F
L: 79°F
Moderate rain
Tue
H: 79°F
L: 78°F
Patchy rain nearby
Wed
H: 80°F
L: 78°F
Sunny
Thu
H: 80°F
L: 79°F

Air Quality

PM2.5: 14.62 μg/m3
PM10: 23.31 μg/m3
Carbon Monoxide: 210.9 μg/m3
Nitrogen Dioxide: 0.74 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:23 PM
Sunset: 8:02 PM
Daylight: 13 hrs 16 mins
Moonrise: 7:24 PM
Moon Transit: 12:13 AM
Moonset: 5:50 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:12 PM - 3:42 PM

Minor Periods

6:54 PM - 8:24 PM
5:20 AM - 6:50 AM

Action Rating: 5 out of 5

Sunday, May 11, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 79.4°F
Average Humidity: 88%
Chance of Rain: 0%
Wind: 22.4 mph
UV Index: 2.2

Air Quality

AQI: 1 - Good
PM2.5: 13.89 μg/m3
PM10: 22.16 μg/m3
Carbon Monoxide: 209.79 μg/m3
Nitrogen Dioxide: 0.84 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 66.96 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:23 PM
Sunset: 8:02 PM
Daylight: 13 hrs 16 mins
Moonrise: 7:24 PM
Moon Transit: 12:13 AM
Moonset: 5:50 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:12 PM - 3:42 PM

Minor Periods

6:54 PM - 8:24 PM
5:20 AM - 6:50 AM

Action Rating: 5 out of 5

Monday, May 12, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 79.5°F
Average Humidity: 85%
Chance of Rain: 0%
Wind: 16.6 mph
UV Index: 2.4

Air Quality

AQI: 1 - Good
PM2.5: 11.47 μg/m3
PM10: 18.46 μg/m3
Carbon Monoxide: 218.97 μg/m3
Nitrogen Dioxide: 1.07 μg/m3
Sulphur Dioxide: 0.28 μg/m3
Ozone: 53.52 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:23 PM
Sunset: 8:03 PM
Daylight: 13 hrs 17 mins
Moonrise: 8:19 PM
Moon Transit: 12:56 AM
Moonset: 6:25 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
1:57 PM - 4:27 PM

Minor Periods

7:49 PM - 9:19 PM
5:55 AM - 7:25 AM

Action Rating: 4 out of 5

Tuesday, May 13, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 78.9°F
Average Humidity: 84%
Chance of Rain: 88%
Wind: 12.3 mph
UV Index: 2.4

Air Quality

AQI: 1 - Good
PM2.5: 7.88 μg/m3
PM10: 11.11 μg/m3
Carbon Monoxide: 245.83 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 64.16 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:23 PM
Sunset: 8:03 PM
Daylight: 13 hrs 18 mins
Moonrise: 9:15 PM
Moon Transit: 1:43 AM
Moonset: 7:04 AM
Moon Phase: Full
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

1:13 AM - 3:43 AM
2:45 PM - 5:15 PM

Minor Periods

8:45 PM - 10:15 PM
6:34 AM - 8:04 AM

Action Rating: 4 out of 5

Wednesday, May 14, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 79.1°F
Average Humidity: 70%
Chance of Rain: 88%
Wind: 9.2 mph
UV Index: 2.8

Air Quality

AQI: 1 - Good
PM2.5: 4.75 μg/m3
PM10: 6.56 μg/m3
Carbon Monoxide: 246.33 μg/m3
Nitrogen Dioxide: 1.76 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 67.15 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 1:23 PM
Sunset: 8:04 PM
Daylight: 13 hrs 19 mins
Moonrise: 10:11 PM
Moon Transit: 2:32 AM
Moonset: 7:48 AM
Moon Phase: Full
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

2:02 AM - 4:32 AM
3:36 PM - 6:06 PM

Minor Periods

9:41 PM - 11:11 PM
7:18 AM - 8:48 AM

Action Rating: 3 out of 5

Thursday, May 15, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 79.4°F
Average Humidity: 68%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 0.1

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: 6:44 AM
Sun Transit: 1:23 PM
Sunset: 8:04 PM
Daylight: 13 hrs 20 mins
Moonrise: 11:05 PM
Moon Transit: 3:25 AM
Moonset: 8:38 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

2:55 AM - 5:25 AM
4:30 PM - 7:00 PM

Minor Periods

12:00 AM - 12:00 AM
8:08 AM - 9:38 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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