Water Temperature of Long Sound Near Key Largo, FL

Current Water Temperature

81.7°F

Measurement Time: Friday, March 6, 2026, 5:00 PM EST

Temperature Locations

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Local Points of Interest

Little Blackwater Sound; Florida Bay; Barnes Sound; Florida Keys National Marine Sactuary; Everglades National Park; Florida Keys; Gulf of Mexico

Long Sound

Station Name: Long Sound, 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: 25.235, -80.457

Nearby Water Temperatures

West Highway Creek, Key Largo, FL (0.8 mi)
Little Blackwater Sound, Key Largo, FL (2.1 mi)
Manatee Bay, Homestead, FL (2.2 mi)
Joe Bay, Key Largo, FL (4.2 mi)
Joe Bay, Key Largo, FL (5.3 mi)
Barnes Sound, Key Largo, FL (5.3 mi)
Mud Creek, Homestead, FL (8.2 mi)
Florida Bay, Key Largo, FL (10.9 mi)
Little Madeira Bay, Homestead, FL (11.7 mi)
Taylor River, Homestead, FL (11.8 mi)
Taylor River, Homestead, FL (12.1 mi)
Taylor Slough, Homestead, FL (14.2 mi)
Seven Palm Lake, Flamingo, FL (17.1 mi)
Mowry Canal Number C-103, Homestead, FL (17.7 mi)
Florida Bay, Islamorada, FL (20.1 mi)

Weather Near Key Largo, Florida

Current Weather

76.6°F
Clear
Clear
80.7°F
79.6°F
81%
E 20.4 mph
27.8 mph
75.8°F
70.7°F
0 in
25%
9 mi
1022 mbar
1

Five Day Weather Forecast

Sunny
Sat
H: 78°F
L: 75°F
Partly Cloudy
Sun
H: 78°F
L: 74°F
Overcast
Mon
H: 73°F
L: 72°F
Patchy rain nearby
Tue
H: 77°F
L: 72°F
Patchy rain nearby
Wed
H: 77°F
L: 76°F

Air Quality

PM2.5: 7.05 μg/m3
PM10: 10.65 μg/m3
Carbon Monoxide: 98.85 μg/m3
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 58 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:32 AM
Sunset: 6:27 PM
Daylight: 11 hrs 48 mins
Moonrise: 10:30 PM
Moon Transit: 3:15 AM
Moonset: 8:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.2%

Best Times for Fishing or Hunting

Major Periods

2:45 AM - 5:15 AM
4:26 PM - 6:56 PM

Minor Periods

10:00 PM - 11:30 PM
8:21 AM - 9:51 AM

Action Rating: 3 out of 5

Rip Current Statement issued March 6 at 1:10PM EST until March 8 at 8:00PM EDT by NWS Miami FL

Effective: Fri March 6, 2026, 1:10 PM
Expires: Sat March 7, 2026, 4:15 AM

* WHAT...Dangerous rip currents. * WHERE...Coastal Palm Beach County, Coastal Broward County and Coastal Miami Dade County. * WHEN...Through Sunday 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 7 at 12:09AM EST until March 8 at 8:00PM EDT by NWS Miami FL

Effective: Sat March 7, 2026, 12:09 AM
Expires: Sat March 7, 2026, 3:00 PM

* WHAT...Dangerous rip currents. * WHERE...Coastal Palm Beach County, Coastal Broward County and Coastal Miami Dade County. * WHEN...Through Sunday 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.
Saturday, March 7, 2026

Weather Forecast

Sunny
78.4°F
74.8°F
76.1°F
82%
0 in
0%
0%
20.8 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 6.81 μg/m3
PM10: 10.19 μg/m3
Carbon Monoxide: 101.09 μg/m3
Nitrogen Dioxide: 1.79 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 65.28 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:32 AM
Sunset: 6:27 PM
Daylight: 11 hrs 48 mins
Moonrise: 10:30 PM
Moon Transit: 3:15 AM
Moonset: 8:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.2%

Best Times for Fishing or Hunting

Major Periods

2:45 AM - 5:15 AM
4:26 PM - 6:56 PM

Minor Periods

10:00 PM - 11:30 PM
8:21 AM - 9:51 AM

Action Rating: 3 out of 5

Sunday, March 8, 2026

Weather Forecast

Partly Cloudy
77.9°F
73.6°F
75.4°F
88%
0 in
0%
0%
21 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 6.71 μg/m3
PM10: 10.02 μg/m3
Carbon Monoxide: 94.81 μg/m3
Nitrogen Dioxide: 1.79 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 64.08 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:32 AM
Sunset: 6:28 PM
Daylight: 11 hrs 50 mins
Moonrise: 11:26 PM
Moon Transit: 4:00 AM
Moonset: 9:26 AM
Moon Phase: Waning Gibbous
Moon Illumination: 69.3%

Best Times for Fishing or Hunting

Major Periods

3:30 AM - 6:00 AM
5:12 PM - 7:42 PM

Minor Periods

12:00 AM - 12:00 AM
8:56 AM - 10:26 AM

Action Rating: 2 out of 5

Monday, March 9, 2026

Weather Forecast

Overcast
73.4°F
71.8°F
72.9°F
97%
0 in
0%
0%
17.9 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 6.09 μg/m3
PM10: 9.05 μg/m3
Carbon Monoxide: 101.6 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 66.04 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 12:32 AM
Sunset: 6:28 PM
Daylight: 11 hrs 51 mins
Moonrise: 12:26 AM
Moon Transit: 4:47 AM
Moonset: 10:06 AM
Moon Phase: Waning Gibbous
Moon Illumination: 58.5%

Best Times for Fishing or Hunting

Major Periods

4:17 AM - 6:47 AM
6:00 PM - 8:30 PM

Minor Periods

9:36 AM - 11:06 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, March 10, 2026

Weather Forecast

Patchy rain nearby
77.1°F
72.3°F
75.7°F
79%
0.01 in
86%
0%
21.3 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 5.74 μg/m3
PM10: 8.64 μg/m3
Carbon Monoxide: 100.35 μg/m3
Nitrogen Dioxide: 1.87 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 63.67 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:32 AM
Sunset: 6:29 PM
Daylight: 11 hrs 53 mins
Moonrise: 12:22 AM
Moon Transit: 5:36 AM
Moonset: 10:50 AM
Moon Phase: Last Quarter
Moon Illumination: 47.2%

Best Times for Fishing or Hunting

Major Periods

5:06 AM - 7:36 AM
6:51 PM - 9:21 PM

Minor Periods

10:20 AM - 11:50 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, March 11, 2026

Weather Forecast

Patchy rain nearby
77°F
75.9°F
76.3°F
75%
0.02 in
89%
0%
21.5 mph
5


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: 6:35 AM
Sun Transit: 12:31 AM
Sunset: 6:29 PM
Daylight: 11 hrs 54 mins
Moonrise: 1:16 AM
Moon Transit: 6:27 AM
Moonset: 11:39 AM
Moon Phase: Last Quarter
Moon Illumination: 36.0%

Best Times for Fishing or Hunting

Major Periods

5:57 AM - 8:27 AM
7:42 PM - 10:12 PM

Minor Periods

11:09 AM - 12:39 AM
12:46 AM - 2:16 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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