Water Temperature of Little Blackwater Sound Near Key Largo, FL

Current Water Temperature

82.2°F

Measurement Time: Wednesday, May 20, 2026, 2:00 AM EDT

Temperature Locations

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Local Points of Interest

Everglades National Park; Long Sound; Florida Bay; Manatee Bay; Barnes Sound; Cross Key; Florida Keys National Marine Sactuary; Florida Keys; Gulf of Mexico; Overseas Hwy

Little Blackwater Sound

Station Name: Little Blackwater, 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: 25.214, -80.432

Nearby Water Temperatures

Manatee Bay, Homestead, FL (1.8 mi)
Long Sound, Key Largo, FL (2.1 mi)
West Highway Creek, Key Largo, FL (2.2 mi)
Barnes Sound, Key Largo, FL (5.6 mi)
Joe Bay, Key Largo, FL (5.9 mi)
Joe Bay, Key Largo, FL (6.8 mi)
Mud Creek, Homestead, FL (9.5 mi)
Florida Bay, Key Largo, FL (10.3 mi)
Little Madeira Bay, Homestead, FL (12.8 mi)
Taylor River, Homestead, FL (13 mi)
Taylor River, Homestead, FL (13.6 mi)
Taylor Slough, Homestead, FL (15.9 mi)
Seven Palm Lake, Flamingo, FL (18.4 mi)
Mowry Canal Number C-103, Homestead, FL (18.6 mi)
Florida Bay, Islamorada, FL (20.2 mi)

Weather Near Key Largo, Florida

Current Weather

81.7°F
Light rain shower
Light rain shower
86.5°F
86.5°F
71%
ESE 19 mph
27.6 mph
81.7°F
71.4°F
0.02 in
72%
6 mi
1016 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 83°F
L: 81°F
Patchy rain nearby
Thu
H: 83°F
L: 81°F
Patchy rain nearby
Fri
H: 83°F
L: 81°F
Patchy rain nearby
Sat
H: 83°F
L: 81°F
Patchy rain nearby
Sun
H: 83°F
L: 82°F

Air Quality

PM2.5: 3.75 μg/m3
PM10: 5.55 μg/m3
Carbon Monoxide: 105.85 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:18 PM
Sunset: 8:02 PM
Daylight: 13 hrs 27 mins
Moonrise: 10:18 AM
Moon Transit: 5:25 PM
Moonset: 12:34 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

5:44 AM - 8:14 AM
4:55 PM - 7:25 PM

Minor Periods

9:48 AM - 11:18 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Rip Current Statement issued May 19 at 12:23PM EDT until May 20 at 8:00PM EDT by NWS Miami FL

Effective: Tue May 19, 2026, 12:23 PM
Expires: Wed May 20, 2026, 4:00 AM

* WHAT...Dangerous rip currents. * WHERE...Coastal Broward County and Coastal Miami Dade County. * WHEN...Through Wednesday 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 May 20 at 1:23AM EDT until May 20 at 8:00PM EDT by NWS Miami FL

Effective: Wed May 20, 2026, 1:23 AM
Expires: Wed May 20, 2026, 8:00 PM

* WHAT...Dangerous rip currents. * WHERE...Coastal Broward County and Coastal Miami Dade County. * WHEN...Through this 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, May 20, 2026

Weather Forecast

Patchy rain nearby
82.9°F
80.9°F
82.1°F
70%
0.15 in
89%
0%
20.1 mph
10.8


Air Quality

AQI: 1 - Good
PM2.5: 4.09 μg/m3
PM10: 6.05 μg/m3
Carbon Monoxide: 106.41 μg/m3
Nitrogen Dioxide: 1.76 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 69.12 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:18 PM
Sunset: 8:02 PM
Daylight: 13 hrs 27 mins
Moonrise: 10:18 AM
Moon Transit: 5:25 PM
Moonset: 12:34 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

5:44 AM - 8:14 AM
4:55 PM - 7:25 PM

Minor Periods

9:48 AM - 11:18 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, May 21, 2026

Weather Forecast

Patchy rain nearby
82.6°F
80.8°F
81.8°F
70%
0.07 in
89%
0%
20.6 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 3.77 μg/m3
PM10: 5.55 μg/m3
Carbon Monoxide: 108.52 μg/m3
Nitrogen Dioxide: 1.74 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 73.12 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:18 PM
Sunset: 8:03 PM
Daylight: 13 hrs 28 mins
Moonrise: 11:26 AM
Moon Transit: 6:21 PM
Moonset: 12:27 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

6:43 AM - 9:13 AM
5:51 PM - 8:21 PM

Minor Periods

10:56 AM - 12:26 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Friday, May 22, 2026

Weather Forecast

Patchy rain nearby
82.6°F
81.1°F
81.8°F
67%
0.02 in
81%
0%
16.6 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 3.57 μg/m3
PM10: 5.13 μg/m3
Carbon Monoxide: 110.16 μg/m3
Nitrogen Dioxide: 1.79 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 75.56 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:18 PM
Sunset: 8:03 PM
Daylight: 13 hrs 29 mins
Moonrise: 12:30 AM
Moon Transit: 7:12 PM
Moonset: 1:10 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

7:36 AM - 10:06 AM
6:42 PM - 9:12 PM

Minor Periods

12:00 AM - 1:30 PM
12:40 AM - 2:10 AM

Action Rating: 2 out of 5

Saturday, May 23, 2026

Weather Forecast

Patchy rain nearby
83.1°F
80.8°F
81.6°F
74%
0.12 in
84%
0%
17.9 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.3 μg/m3
PM10: 7.74 μg/m3
Carbon Monoxide: 118.08 μg/m3
Nitrogen Dioxide: 1.87 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 70.69 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:18 PM
Sunset: 8:04 PM
Daylight: 13 hrs 30 mins
Moonrise: 1:29 PM
Moon Transit: 7:58 PM
Moonset: 1:47 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

8:24 AM - 10:54 AM
7:28 PM - 9:58 PM

Minor Periods

12:59 AM - 2:29 PM
1:17 AM - 2:47 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Patchy rain nearby
83.2°F
82.3°F
82.8°F
74%
0.01 in
86%
0%
16.6 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: 6:34 AM
Sun Transit: 1:18 PM
Sunset: 8:04 PM
Daylight: 13 hrs 31 mins
Moonrise: 2:26 PM
Moon Transit: 8:41 PM
Moonset: 2:21 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

9:09 AM - 11:39 AM
8:11 PM - 10:41 PM

Minor Periods

1:56 PM - 3:26 PM
1:51 AM - 3:21 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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