Water Temperature of the St. Johns River in Jacksonville, FL
Current Water Temperature
Measurement Time: Tuesday, April 7, 2026, 5:30 PM EDT
Temperature Locations
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Local Points of Interest
Riverfront Park; Marco LakeStation Name: ST JOHNS RIVER BL MARCO LK AT JACKSONVILLE, FL
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 0 feet
Nearest Address:
1799 River Rd
Jacksonville, FL 32207
Duval County
GPS Coordinates: 30.30478056, -81.6601
Nearby Water Temperatures
St. Johns River, Jacksonville, FL (1.3 mi)St. Johns River, Jacksonville, FL (3.7 mi)
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Pottsburg Creek, Jacksonville, FL (5.5 mi)
St. Johns River, Jacksonville, FL (7.9 mi)
St. Johns River, Jacksonville, FL (8.3 mi)
St. Johns River, Jacksonville, FL (8.3 mi)
Ortega River, Jacksonville, FL (8.3 mi)
St. Johns River, Orange Park, FL (8.7 mi)
Broward River, Jacksonville, FL (9.6 mi)
Trout River, Jacksonville, FL (10.8 mi)
Dunn Creek, Jacksonville, FL (11 mi)
Julington Creek, Jacksonville, FL (12.4 mi)
Clapboard Creek, Jacksonville, FL (12.9 mi)
Weather for Jacksonville, Florida
Current Weather

Five Day Weather Forecast

Tue
H: 70°F
L: 62°F

Wed
H: 66°F
L: 63°F

Thu
H: 68°F
L: 63°F

Fri
H: 73°F
L: 63°F

Sat
H: 80°F
L: 62°F
Air Quality
Nitrogen Dioxide: 2.85 μg/m3
Sulphur Dioxide: 3.35 μg/m3
Ozone: 107 μg/m3
Astronomical
Sun Transit: 1:28 PM
Sunset: 7:49 PM
Daylight: 12 hrs 41 mins
Moon Transit: 5:24 AM
Moonset: 10:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%
Best Times for Fishing or Hunting
Major Periods
4:54 AM - 7:24 AM6:30 PM - 9:00 PM
Minor Periods
9:52 AM - 11:22 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
High Surf Advisory issued April 7 at 2:12PM EDT until April 9 at 8:00PM EDT by NWS Jacksonville FL
Effective: Tue April 7, 2026, 2:12 PM
Expires: Wed April 8, 2026, 5:15 AM
* WHAT...For the High Surf Advisory, large breaking waves of 7 to 13 feet. For the High Rip Current Risk, dangerous rip currents. * WHERE...Southeast Georgia and Northeast Florida Beaches. * WHEN...For the High Surf Advisory, until 8 PM EDT Thursday. For the High Rip Current Risk, through Thursday evening. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water.
Inexperienced swimmers should remain out of the water due to dangerous surf conditions. 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 April 7 at 2:12PM EDT until April 9 at 8:00PM EDT by NWS Jacksonville FL
Effective: Tue April 7, 2026, 2:12 PM
Expires: Wed April 8, 2026, 5:15 AM
* WHAT...For the High Surf Advisory, large breaking waves of 7 to 13 feet. For the High Rip Current Risk, dangerous rip currents. * WHERE...Southeast Georgia and Northeast Florida Beaches. * WHEN...For the High Surf Advisory, until 8 PM EDT Thursday. For the High Rip Current Risk, through Thursday evening. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water.
Inexperienced swimmers should remain out of the water due to dangerous surf conditions. 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.
Wind Advisory issued April 7 at 11:08AM EDT until April 8 at 11:00PM EDT by NWS Jacksonville FL
Effective: Tue April 7, 2026, 11:08 AM
Expires: Wed April 8, 2026, 5:00 AM
* WHAT...Northeast winds 15 to 25 mph with gusts up to 40 mph. * WHERE...Coastal Duval, Coastal Flagler, Coastal Nassau, Inland Flagler, Northeast Coastal St. Johns, Northern Inland St. Johns, South Central Duval, Southeast Coastal St. Johns, Southern Inland St. Johns, and Western St. Johns Counties. * WHEN...Until 11 PM EDT Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.47 μg/m3
Sulphur Dioxide: 2.72 μg/m3
Ozone: 102.56 μg/m3
Astronomical
Sun Transit: 1:28 PM
Sunset: 7:49 PM
Daylight: 12 hrs 41 mins
Moon Transit: 5:24 AM
Moonset: 10:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%
Best Times for Fishing or Hunting
Major Periods
4:54 AM - 7:24 AM6:30 PM - 9:00 PM
Minor Periods
9:52 AM - 11:22 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.84 μg/m3
Sulphur Dioxide: 2.71 μg/m3
Ozone: 109.48 μg/m3
Astronomical
Sun Transit: 1:28 PM
Sunset: 7:50 PM
Daylight: 12 hrs 43 mins
Moon Transit: 6:15 AM
Moonset: 11:12 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%
Best Times for Fishing or Hunting
Major Periods
5:45 AM - 8:15 AM7:20 PM - 9:50 PM
Minor Periods
10:42 AM - 12:12 AM12:50 AM - 2:20 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.78 μg/m3
Sulphur Dioxide: 2.46 μg/m3
Ozone: 115.12 μg/m3
Astronomical
Sun Transit: 1:28 PM
Sunset: 7:50 PM
Daylight: 12 hrs 44 mins
Moon Transit: 7:07 AM
Moonset: 12:08 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%
Best Times for Fishing or Hunting
Major Periods
6:37 AM - 9:07 AM8:11 PM - 10:41 PM
Minor Periods
11:38 AM - 1:08 PM1:39 AM - 3:09 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.32 μg/m3
Sulphur Dioxide: 2.24 μg/m3
Ozone: 116.52 μg/m3
Astronomical
Sun Transit: 1:27 PM
Sunset: 7:51 PM
Daylight: 12 hrs 46 mins
Moon Transit: 7:57 AM
Moonset: 1:06 PM
Moon Phase: Last Quarter
Moon Illumination: 31.0%
Best Times for Fishing or Hunting
Major Periods
7:27 AM - 9:57 AM9:01 PM - 11:31 PM
Minor Periods
12:36 AM - 2:06 PM2:23 AM - 3:53 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.09 μg/m3
Sulphur Dioxide: 2.14 μg/m3
Ozone: 97.85 μg/m3
Astronomical
Sun Transit: 1:27 PM
Sunset: 7:52 PM
Daylight: 12 hrs 48 mins
Moon Transit: 8:46 AM
Moonset: 2:06 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%
Best Times for Fishing or Hunting
Major Periods
8:16 AM - 10:46 AM12:00 AM - 12:00 AM
Minor Periods
1:36 PM - 3:06 PM3:02 AM - 4:32 AM
Action Rating: 2 out of 5
