Water Temperature of Long Sound Near Key Largo, FL

Current Water Temperature

90.0°F

Measurement Time: Tuesday, May 20, 2025, 5:00 PM 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

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Long Sound

Station Name: Long Sound, FL
Station Type: Fixed
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet / 0 meters

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)
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)
Whipray Basin, Islamorada, FL (20.7 mi)

Weather Near Key Largo, Florida

Current Weather

77°F
Clear
Conditions: Clear
Humidity: 85%
Feels Like: 80.2°F
Wind: SE 16.6 mph
Wind Gusts: 21.7 mph
Pressure: 29.97 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Wed
H: 82°F
L: 81°F
Sunny
Thu
H: 84°F
L: 81°F
Sunny
Fri
H: 84°F
L: 80°F
Patchy rain nearby
Sat
H: 83°F
L: 81°F
Patchy rain nearby
Sun
H: 82°F
L: 81°F

Air Quality

PM2.5: 11.29 μg/m3
PM10: 16.84 μg/m3
Carbon Monoxide: 205.35 μg/m3
Nitrogen Dioxide: 1.48 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:18 PM
Sunset: 8:03 PM
Daylight: 13 hrs 28 mins
Moonrise: 2:32 AM
Moon Transit: 8:25 AM
Moonset: 2:25 PM
Moon Phase: Last Quarter
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
12:00 AM - 12:00 AM

Minor Periods

1:55 PM - 3:25 PM
2:02 AM - 3:32 AM

Action Rating: 2 out of 5

Wednesday, May 21, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 81.6°F
Average Humidity: 72%
Chance of Rain: 0%
Wind: 17 mph
UV Index: 3.1

Air Quality

AQI: 1 - Good
PM2.5: 10.73 μg/m3
PM10: 16.04 μg/m3
Carbon Monoxide: 205.63 μg/m3
Nitrogen Dioxide: 1.57 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 64.69 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:18 PM
Sunset: 8:03 PM
Daylight: 13 hrs 28 mins
Moonrise: 2:32 AM
Moon Transit: 8:25 AM
Moonset: 2:25 PM
Moon Phase: Last Quarter
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
12:00 AM - 12:00 AM

Minor Periods

1:55 PM - 3:25 PM
2:02 AM - 3:32 AM

Action Rating: 2 out of 5

Thursday, May 22, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 82.2°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 18.8 mph
UV Index: 0.1

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: 8:03 PM
Daylight: 13 hrs 29 mins
Moonrise: 3:06 AM
Moon Transit: 12:46 AM
Moonset: 3:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:16 AM - 2:46 PM
12:16 AM - 2:46 PM

Minor Periods

2:56 PM - 4:26 PM
2:36 AM - 4:06 AM

Action Rating: 2 out of 5

Friday, May 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 82.1°F
Average Humidity: 58%
Chance of Rain: 0%
Wind: 11.4 mph
UV Index: 7

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 30 mins
Moonrise: 3:40 AM
Moon Transit: 10:01 AM
Moonset: 4:30 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:31 AM - 12:01 AM

Minor Periods

4:00 PM - 5:30 PM
3:10 AM - 4:40 AM

Action Rating: 2 out of 5

Saturday, May 24, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 81.9°F
Average Humidity: 71%
Chance of Rain: 82%
Wind: 15 mph
UV Index: 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: 4:17 AM
Moon Transit: 10:53 AM
Moonset: 5:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:23 AM - 12:53 AM

Minor Periods

5:06 PM - 6:36 PM
3:47 AM - 5:17 AM

Action Rating: 2 out of 5

Sunday, May 25, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 81.5°F
Average Humidity: 74%
Chance of Rain: 0%
Wind: 18.8 mph
UV Index: 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: 6:33 AM
Sun Transit: 1:18 PM
Sunset: 8:05 PM
Daylight: 13 hrs 32 mins
Moonrise: 4:58 AM
Moon Transit: 11:48 AM
Moonset: 6:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:09 AM - 2:39 AM
11:18 AM - 1:48 PM

Minor Periods

6:17 PM - 7:47 PM
4:28 AM - 5:58 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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