Water Temperature of Long Sound Near Key Largo, FL

Current Water Temperature

83.7°F

Measurement Time: Sunday, May 24, 2026, 6:00 AM EDT

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

82.9°F
Sunny
Sunny
90.8°F
90.7°F
77%
ESE 19.5 mph
25.1 mph
82.8°F
74.8°F
0 in
25%
9 mi
1018 mbar
4.4

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 86°F
L: 81°F
Patchy rain nearby
Mon
H: 84°F
L: 81°F
Patchy rain nearby
Tue
H: 83°F
L: 81°F
Moderate rain
Wed
H: 82°F
L: 79°F
Moderate rain
Thu
H: 83°F
L: 81°F

Air Quality

AQI: 1 - Good
PM2.5: 6.45 μg/m3
PM10: 10.35 μg/m3
Carbon Monoxide: 105.85 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 63 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

Rip Current Statement issued May 24 at 5:09AM EDT until May 26 at 8:00PM EDT by NWS Miami FL

Effective: Sun May 24, 2026, 5:09 AM
Expires: Mon May 25, 2026, 4:00 AM

* WHAT...Dangerous rip currents. * WHERE...Coastal Broward County and Coastal Miami Dade County. * WHEN...Through Tuesday 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.
Sunday, May 24, 2026

Weather Forecast

Patchy rain nearby
85.5°F
81.1°F
82.5°F
77%
0.01 in
83%
0%
20.6 mph
10.9


Air Quality

AQI: 1 - Good
PM2.5: 6.57 μg/m3
PM10: 10.56 μg/m3
Carbon Monoxide: 106.17 μg/m3
Nitrogen Dioxide: 1.49 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 62.76 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

Monday, May 25, 2026

Weather Forecast

Patchy rain nearby
83.5°F
81.3°F
82.3°F
72%
0.07 in
89%
0%
24.2 mph
11


Air Quality

AQI: 1 - Good
PM2.5: 8.57 μg/m3
PM10: 13.87 μg/m3
Carbon Monoxide: 104.45 μg/m3
Nitrogen Dioxide: 1.44 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 62.64 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:18 PM
Sunset: 8:05 PM
Daylight: 13 hrs 31 mins
Moonrise: 3:20 PM
Moon Transit: 9:23 PM
Moonset: 2:52 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

9:51 AM - 12:21 AM
8:53 PM - 11:23 PM

Minor Periods

2:50 PM - 4:20 PM
2:22 AM - 3:52 AM

Action Rating: 2 out of 5

Tuesday, May 26, 2026

Weather Forecast

Patchy rain nearby
82.8°F
81.2°F
82.3°F
72%
0.04 in
88%
0%
22.8 mph
11


Air Quality

AQI: 1 - Good
PM2.5: 8.7 μg/m3
PM10: 14.12 μg/m3
Carbon Monoxide: 105.81 μg/m3
Nitrogen Dioxide: 1.44 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 60.48 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:18 PM
Sunset: 8:05 PM
Daylight: 13 hrs 32 mins
Moonrise: 4:14 PM
Moon Transit: 10:05 PM
Moonset: 3:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

10:33 AM - 1:03 PM
12:00 AM - 12:00 AM

Minor Periods

3:44 PM - 5:14 PM
2:52 AM - 4:22 AM

Action Rating: 2 out of 5

Wednesday, May 27, 2026

Weather Forecast

Moderate rain
82°F
78.5°F
81.4°F
77%
0.61 in
89%
0%
22.6 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 7.56 μg/m3
PM10: 12.31 μg/m3
Carbon Monoxide: 108.2 μg/m3
Nitrogen Dioxide: 1.42 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 58.56 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:19 PM
Sunset: 8:06 PM
Daylight: 13 hrs 33 mins
Moonrise: 5:07 PM
Moon Transit: 10:48 PM
Moonset: 3:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

11:15 AM - 1:45 PM
12:00 AM - 12:00 AM

Minor Periods

4:37 PM - 6:07 PM
3:22 AM - 4:52 AM

Action Rating: 2 out of 5

Thursday, May 28, 2026

Weather Forecast

Moderate rain
83.1°F
81.2°F
82.1°F
76%
0.29 in
84%
0%
19.9 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 6.3 μg/m3
PM10: 10.17 μg/m3
Carbon Monoxide: 108.74 μg/m3
Nitrogen Dioxide: 1.6 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 55.15 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:19 PM
Sunset: 8:06 PM
Daylight: 13 hrs 34 mins
Moonrise: 6:02 PM
Moon Transit: 11:32 PM
Moonset: 4:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

11:59 AM - 2:29 PM
12:00 AM - 12:00 AM

Minor Periods

5:32 PM - 7:02 PM
3:55 AM - 5:25 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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