Water Temperature of Little Blackwater Sound Near Key Largo, FL

Current Water Temperature

77.9°F

Measurement Time: Tuesday, March 17, 2026, 5:00 PM 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

61.7°F
Overcast
Overcast
61.7°F
63.8°F
84%
NNE 20.4 mph
25.1 mph
63.7°F
62.2°F
0 in
100%
9 mi
1019 mbar
0

Five Day Weather Forecast

Heavy rain
Tue
H: 74°F
L: 64°F
Patchy rain nearby
Wed
H: 71°F
L: 61°F
Overcast
Thu
H: 73°F
L: 67°F
Sunny
Fri
H: 75°F
L: 65°F
Patchy rain nearby
Sat
H: 74°F
L: 72°F

Air Quality

AQI: 1 - Good
PM2.5: 7.15 μg/m3
PM10: 9.25 μg/m3
Carbon Monoxide: 164.85 μg/m3
Nitrogen Dioxide: 7.75 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:00 AM
Sunset: 7:31 PM
Daylight: 12 hrs 3 mins
Moonrise: 6:33 AM
Moon Transit: 12:25 AM
Moonset: 6:24 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
11:55 AM - 2:25 PM

Minor Periods

5:54 PM - 7:24 PM
6:03 AM - 7:33 AM

Action Rating: 5 out of 5

Rip Current Statement issued March 17 at 8:30AM EDT until March 19 at 8:00PM EDT by NWS Miami FL

Effective: Tue March 17, 2026, 8:30 AM
Expires: Tue March 17, 2026, 8:00 PM

* WHAT...Dangerous rip currents expected. * WHERE...Coastal Broward 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 17 at 7:52PM EDT until March 19 at 8:00PM EDT by NWS Miami FL

Effective: Tue March 17, 2026, 7:52 PM
Expires: Wed March 18, 2026, 4:00 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.
Tuesday, March 17, 2026

Weather Forecast

Heavy rain
74.1°F
64°F
70.1°F
88%
2.47 in
89%
0%
22.4 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 5.76 μg/m3
PM10: 7.11 μg/m3
Carbon Monoxide: 140.65 μg/m3
Nitrogen Dioxide: 4.66 μg/m3
Sulphur Dioxide: 2.41 μg/m3
Ozone: 88.28 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:00 AM
Sunset: 7:31 PM
Daylight: 12 hrs 3 mins
Moonrise: 6:33 AM
Moon Transit: 12:25 AM
Moonset: 6:24 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
11:55 AM - 2:25 PM

Minor Periods

5:54 PM - 7:24 PM
6:03 AM - 7:33 AM

Action Rating: 5 out of 5

Wednesday, March 18, 2026

Weather Forecast

Patchy rain nearby
70.9°F
61.3°F
66°F
92%
0.03 in
76%
0%
28.6 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 7.14 μg/m3
PM10: 9.37 μg/m3
Carbon Monoxide: 150.65 μg/m3
Nitrogen Dioxide: 7.33 μg/m3
Sulphur Dioxide: 2.56 μg/m3
Ozone: 101.32 μg/m3

Astronomical

Sunrise: 7:27 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

Overcast
72.7°F
67.3°F
70.1°F
83%
0 in
0%
0%
25.9 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 8.13 μg/m3
PM10: 11.38 μg/m3
Carbon Monoxide: 131.57 μg/m3
Nitrogen Dioxide: 5.29 μg/m3
Sulphur Dioxide: 2.33 μg/m3
Ozone: 108.28 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:00 AM
Sunset: 7:32 PM
Daylight: 12 hrs 6 mins
Moonrise: 7:39 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
7:09 AM - 8:39 AM

Action Rating: 5 out of 5

Friday, March 20, 2026

Weather Forecast

Sunny
74.7°F
64.8°F
69.9°F
81%
0 in
0%
0%
23.3 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 6.93 μg/m3
PM10: 9.27 μg/m3
Carbon Monoxide: 138.31 μg/m3
Nitrogen Dioxide: 5.29 μg/m3
Sulphur Dioxide: 2.43 μg/m3
Ozone: 101.64 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 10:27 AM
Sunset: 7:33 PM
Daylight: 12 hrs 7 mins
Moonrise: 8:15 AM
Moon Transit: 2:47 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
2:17 PM - 4:47 PM

Minor Periods

8:58 PM - 10:28 PM
7:45 AM - 9:15 AM

Action Rating: 4 out of 5

Saturday, March 21, 2026

Weather Forecast

Patchy rain nearby
73.6°F
71.8°F
72.8°F
66%
0.02 in
89%
0%
18.3 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 7.55 μg/m3
PM10: 9.88 μg/m3
Carbon Monoxide: 159.91 μg/m3
Nitrogen Dioxide: 7.22 μg/m3
Sulphur Dioxide: 2.94 μg/m3
Ozone: 93.85 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 7:33 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

4:03 AM - 6:33 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

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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