Water Temperature of the St. Johns River in Jacksonville, FL
Current Water Temperature
Measurement Time: Wednesday, June 3, 2026, 11:30 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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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

Thu
H: 87°F
L: 71°F

Fri
H: 84°F
L: 72°F

Sat
H: 85°F
L: 70°F

Sun
H: 92°F
L: 72°F

Mon
H: 92°F
L: 72°F
Air Quality
Nitrogen Dioxide: 3.4 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 102 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 8:26 PM
Daylight: 14 hrs 1 mins
Moon Transit: 4:35 AM
Moonset: 9:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.3%
Best Times for Fishing or Hunting
Major Periods
4:05 AM - 6:35 AM5:38 PM - 8:08 PM
Minor Periods
9:18 AM - 10:48 AM12:00 AM - 12:00 AM
Action Rating: 4 out of 5
High Surf Advisory issued June 3 at 4:53PM EDT until June 4 at 5:00AM EDT by NWS Jacksonville FL
Effective: Wed June 3, 2026, 4:53 PM
Expires: Thu June 4, 2026, 5:00 AM
* WHAT...For the High Surf Advisory, large breaking waves of 6 to 9 feet. For the High Rip Current Risk, dangerous rip currents. * WHERE...Southeast Georgia and Northeast Florida Beaches. * WHEN...For the High Surf Advisory, until 5 AM EDT Thursday. For the High Rip Current Risk, through Friday afternoon. * 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 June 3 at 4:53PM EDT until June 5 at 5:00PM EDT by NWS Jacksonville FL
Effective: Wed June 3, 2026, 4:53 PM
Expires: Thu June 4, 2026, 5:00 AM
* WHAT...For the High Surf Advisory, large breaking waves of 6 to 9 feet. For the High Rip Current Risk, dangerous rip currents. * WHERE...Southeast Georgia and Northeast Florida Beaches. * WHEN...For the High Surf Advisory, until 5 AM EDT Thursday. For the High Rip Current Risk, through Friday afternoon. * 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 June 4 at 2:26AM EDT until June 6 at 5:00AM EDT by NWS Jacksonville FL
Effective: Thu June 4, 2026, 2:26 AM
Expires: Thu June 4, 2026, 4:00 PM
* WHAT...Dangerous rip currents. * WHERE...Southeast Georgia and Northeast Florida Beaches. * WHEN...Through late Friday night. * 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.
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 109.04 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 8:26 PM
Daylight: 14 hrs 1 mins
Moon Transit: 4:35 AM
Moonset: 9:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.3%
Best Times for Fishing or Hunting
Major Periods
4:05 AM - 6:35 AM5:38 PM - 8:08 PM
Minor Periods
9:18 AM - 10:48 AM12:00 AM - 12:00 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.53 μg/m3
Sulphur Dioxide: 0.77 μg/m3
Ozone: 89.5 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 8:26 PM
Daylight: 14 hrs 1 mins
Moon Transit: 5:22 AM
Moonset: 10:47 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.0%
Best Times for Fishing or Hunting
Major Periods
4:52 AM - 7:22 AM6:24 PM - 8:54 PM
Minor Periods
10:17 AM - 11:47 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.58 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 74.08 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 8:27 PM
Daylight: 14 hrs 2 mins
Moon Transit: 6:07 AM
Moonset: 11:44 AM
Moon Phase: Last Quarter
Moon Illumination: 53.9%
Best Times for Fishing or Hunting
Major Periods
5:37 AM - 8:07 AM7:08 PM - 9:38 PM
Minor Periods
11:14 AM - 12:44 AM12:07 AM - 1:37 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.32 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 77.29 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 8:27 PM
Daylight: 14 hrs 3 mins
Moon Transit: 6:51 AM
Moonset: 12:42 AM
Moon Phase: Last Quarter
Moon Illumination: 42.6%
Best Times for Fishing or Hunting
Major Periods
6:21 AM - 8:51 AM7:51 PM - 10:21 PM
Minor Periods
12:12 AM - 1:42 PM12:37 AM - 2:07 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.69 μg/m3
Sulphur Dioxide: 0.71 μg/m3
Ozone: 67.33 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 8:28 PM
Daylight: 14 hrs 3 mins
Moon Transit: 7:34 AM
Moonset: 1:40 PM
Moon Phase: Last Quarter
Moon Illumination: 31.6%
Best Times for Fishing or Hunting
Major Periods
7:04 AM - 9:34 AM12:00 AM - 12:00 AM
Minor Periods
1:10 PM - 2:40 PM1:06 AM - 2:36 AM
Action Rating: 2 out of 5
