Water Temperature of the Florida Bay Near Key Largo, FL

Current Water Temperature

71.1°F

Measurement Time: Wednesday, March 18, 2026, 10:00 AM EDT

Temperature Locations

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Local Points of Interest

Butternut Key; Florida Bay; Everglades National Park; Gulf of Mexico; Atlantic Ocean

Florida Bay

Station Name: Butternut Key, FL
Station Type: Fixed
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet

Nearest Address:
Offshore
Key Largo, FL 33037
Monroe County

GPS Coordinates: 25.087, -80.519

Nearby Water Temperatures

Mud Creek, Homestead, FL (9 mi)
Little Madeira Bay, Homestead, FL (9.4 mi)
Joe Bay, Key Largo, FL (9.6 mi)
Joe Bay, Key Largo, FL (10.1 mi)
Little Blackwater Sound, Key Largo, FL (10.3 mi)
Taylor River, Homestead, FL (10.4 mi)
Long Sound, Key Largo, FL (10.9 mi)
Florida Bay, Islamorada, FL (11 mi)
West Highway Creek, Key Largo, FL (11.6 mi)
Manatee Bay, Homestead, FL (12.1 mi)
Taylor River, Homestead, FL (12.2 mi)
Whipray Basin, Islamorada, FL (13.6 mi)
Seven Palm Lake, Flamingo, FL (14.1 mi)
Taylor Slough, Homestead, FL (15.4 mi)
Barnes Sound, Key Largo, FL (15.9 mi)

Weather Near Key Largo, Florida

Current Weather

68.5°F
Overcast
Overcast
68.5°F
67°F
83%
NNE 23.5 mph
30.6 mph
67°F
65.5°F
0 in
100%
9 mi
1017 mbar
4

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 69°F
L: 63°F
Patchy rain nearby
Thu
H: 74°F
L: 67°F
Moderate rain
Fri
H: 73°F
L: 70°F
Partly Cloudy
Sat
H: 74°F
L: 70°F
Sunny
Sun
H: 74°F
L: 72°F

Air Quality

AQI: 1 - Good
PM2.5: 4.45 μg/m3
PM10: 5.85 μg/m3
Carbon Monoxide: 139.85 μg/m3
Nitrogen Dioxide: 6.45 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 106 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:00 AM
Sunset: 7:32 PM
Daylight: 12 hrs 4 mins
Moonrise: 7:06 AM
Moon Transit: 12:00 AM
Moonset: 7:23 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

6:53 PM - 8:23 PM
6:36 AM - 8:06 AM

Action Rating: 3 out of 5

Rip Current Statement issued March 17 at 11:18PM EDT until March 19 at 8:00PM EDT by NWS Miami FL

Effective: Tue March 17, 2026, 11:18 PM
Expires: Wed March 18, 2026, 4:00 PM

* WHAT...Dangerous rip currents expected. * WHERE...Coastal Broward County and Coastal Miami Dade County. * WHEN...From Tuesday evening through Thursday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.

Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.


Rip Current Statement issued March 18 at 7:48AM EDT until March 19 at 8:00PM EDT by NWS Miami FL

Effective: Wed March 18, 2026, 7:48 AM
Expires: Thu March 19, 2026, 8:00 AM

* WHAT...Dangerous rip currents expected. * WHERE...Coastal Broward County and Coastal Miami Dade County. * WHEN...From Tuesday evening through Thursday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.

Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.
Wednesday, March 18, 2026

Weather Forecast

Patchy rain nearby
68.9°F
63°F
65.7°F
94%
0.06 in
87%
0%
26.8 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 6.2 μg/m3
PM10: 7.93 μg/m3
Carbon Monoxide: 146.73 μg/m3
Nitrogen Dioxide: 7.17 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 100.76 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:00 AM
Sunset: 7:32 PM
Daylight: 12 hrs 4 mins
Moonrise: 7:06 AM
Moon Transit: 12:00 AM
Moonset: 7:23 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

6:53 PM - 8:23 PM
6:36 AM - 8:06 AM

Action Rating: 3 out of 5

Thursday, March 19, 2026

Weather Forecast

Patchy rain nearby
74.3°F
67.1°F
72°F
81%
0.17 in
74%
0%
25.5 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 8.09 μg/m3
PM10: 11.39 μg/m3
Carbon Monoxide: 135.53 μg/m3
Nitrogen Dioxide: 4.17 μg/m3
Sulphur Dioxide: 1.96 μg/m3
Ozone: 107.96 μg/m3

Astronomical

Sunrise: 7:27 AM
Sun Transit: 12:00 AM
Sunset: 7:33 PM
Daylight: 12 hrs 6 mins
Moonrise: 7:40 AM
Moon Transit: 1:31 AM
Moonset: 8:25 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
1:01 AM - 3:31 AM

Minor Periods

7:55 PM - 9:25 PM
7:10 AM - 8:40 AM

Action Rating: 5 out of 5

Friday, March 20, 2026

Weather Forecast

Moderate rain
72.5°F
70°F
71.4°F
76%
0.31 in
89%
0%
22.6 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 6.73 μg/m3
PM10: 9.3 μg/m3
Carbon Monoxide: 147.49 μg/m3
Nitrogen Dioxide: 5.41 μg/m3
Sulphur Dioxide: 2.19 μg/m3
Ozone: 95.08 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 10:27 AM
Sunset: 7:33 PM
Daylight: 12 hrs 7 mins
Moonrise: 8:16 AM
Moon Transit: 2:48 PM
Moonset: 9:28 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

3:11 AM - 5:41 AM
2:18 PM - 4:48 PM

Minor Periods

8:58 PM - 10:28 PM
7:46 AM - 9:16 AM

Action Rating: 4 out of 5

Saturday, March 21, 2026

Weather Forecast

Partly Cloudy
73.7°F
70°F
71.6°F
66%
0 in
0%
0%
17 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 7.13 μg/m3
PM10: 9.87 μg/m3
Carbon Monoxide: 151.9 μg/m3
Nitrogen Dioxide: 6.73 μg/m3
Sulphur Dioxide: 2.62 μg/m3
Ozone: 92.2 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:00 AM
Sunset: 7:34 PM
Daylight: 12 hrs 9 mins
Moonrise: 8:54 AM
Moon Transit: 3:40 PM
Moonset: 10:35 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

4:02 AM - 6:32 AM
3:10 PM - 5:40 PM

Minor Periods

10:05 PM - 11:35 PM
8:24 AM - 9:54 AM

Action Rating: 2 out of 5

Sunday, March 22, 2026

Weather Forecast

Sunny
73.6°F
72.1°F
72.9°F
58%
0 in
0%
0%
13.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.05 μg/m3
PM10: 8.7 μg/m3
Carbon Monoxide: 132.63 μg/m3
Nitrogen Dioxide: 5.18 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 93.69 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 7:34 PM
Daylight: 12 hrs 10 mins
Moonrise: 9:38 AM
Moon Transit: 4:37 PM
Moonset: 11:43 PM
Moon Phase: Waxing Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
4:07 PM - 6:37 PM

Minor Periods

12:00 AM - 12:00 AM
9:08 AM - 10:38 AM

Action Rating: 3 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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