Water Temperature of the St. Johns River in Jacksonville, FL
Current Water Temperature
Measurement Time: Friday, January 9, 2026, 1:30 AM EST
Temperature Locations
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Station Name: ST. JOHNS RIVER AT JACKSONVILLE, FL
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 0 feet
Nearest Address:
S Acosta Bridge
Jacksonville, FL 32202
Duval County
GPS Coordinates: 30.3224616, -81.6653735
Nearby Water Temperatures
St. Johns River, Jacksonville, FL (1.3 mi)St. Johns River, Jacksonville, FL (3.9 mi)
St. Johns River, Jacksonville, FL (5 mi)
Cedar River, Jacksonville, FL (5.3 mi)
Pottsburg Creek, Jacksonville, FL (6.2 mi)
St. Johns River, Jacksonville, FL (7.8 mi)
St. Johns River, Jacksonville, FL (7.8 mi)
Broward River, Jacksonville, FL (8.4 mi)
St. Johns River, Jacksonville, FL (9.1 mi)
Ortega River, Jacksonville, FL (9.2 mi)
Trout River, Jacksonville, FL (9.6 mi)
St. Johns River, Orange Park, FL (9.9 mi)
Dunn Creek, Jacksonville, FL (10 mi)
Clapboard Creek, Jacksonville, FL (12.2 mi)
Julington Creek, Jacksonville, FL (13.7 mi)
Weather for Jacksonville, Florida
Current Weather

Five Day Weather Forecast

Fri
H: 84°F
L: 57°F

Sat
H: 73°F
L: 65°F

Sun
H: 63°F
L: 55°F

Mon
H: 57°F
L: 42°F

Tue
H: 63°F
L: 46°F
Air Quality
Nitrogen Dioxide: 15.05 μg/m3
Sulphur Dioxide: 5.25 μg/m3
Ozone: 69 μg/m3
Astronomical
Sun Transit: 12:33 AM
Sunset: 5:43 PM
Daylight: 10 hrs 19 mins
Moon Transit: 5:27 AM
Moonset: 11:23 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%
Best Times for Fishing or Hunting
Major Periods
4:57 AM - 7:27 AM6:26 PM - 8:56 PM
Minor Periods
10:53 AM - 12:23 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Dense Fog Advisory issued January 8 at 5:41PM EST until January 9 at 10:00AM EST by NWS Jacksonville FL
Effective: Thu January 8, 2026, 5:41 PM
Expires: Fri January 9, 2026, 5:00 AM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northeast Florida and southeast Georgia. * WHEN...Until 10 AM EST Friday. * IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Dense Fog Advisory issued January 8 at 5:41PM EST until January 9 at 1:00PM EST by NWS Jacksonville FL
Effective: Thu January 8, 2026, 5:41 PM
Expires: Fri January 9, 2026, 5:00 AM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Florida, Coastal Duval, Coastal Flagler, Coastal Nassau, Northeast Coastal St. Johns, and Southeast Coastal St. Johns Counties. In Georgia, Coastal Camden and Coastal Glynn Counties. * WHEN...Until 1 PM EST Friday. * IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Dense Fog Advisory issued January 9 at 2:21AM EST until January 9 at 10:00AM EST by NWS Jacksonville FL
Effective: Fri January 9, 2026, 2:21 AM
Expires: Fri January 9, 2026, 10:00 AM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northeast Florida and southeast Georgia. * WHEN...Until 10 AM EST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Dense Fog Advisory issued January 9 at 2:21AM EST until January 9 at 1:00PM EST by NWS Jacksonville FL
Effective: Fri January 9, 2026, 2:21 AM
Expires: Fri January 9, 2026, 10:00 AM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Florida, Coastal Duval, Coastal Flagler, Coastal Nassau, Northeast Coastal St. Johns, and Southeast Coastal St. Johns Counties. In Georgia, Coastal Camden and Coastal Glynn Counties. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Dense Fog Advisory issued January 9 at 2:21AM EST until January 9 at 10:00AM EST by NWS Jacksonville FL
Effective: Fri January 9, 2026, 2:21 AM
Expires: Fri January 9, 2026, 10:00 AM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Florida, Baker, Bradford, Eastern Alachua, and Union Counties. In Georgia, Northern Ware, Southern Ware, and Western Charlton Counties. * WHEN...Until 10 AM EST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Weather Forecast
Air Quality
Nitrogen Dioxide: 13.46 μg/m3
Sulphur Dioxide: 4.11 μg/m3
Ozone: 68.76 μg/m3
Astronomical
Sun Transit: 12:33 AM
Sunset: 5:43 PM
Daylight: 10 hrs 19 mins
Moon Transit: 5:27 AM
Moonset: 11:23 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%
Best Times for Fishing or Hunting
Major Periods
4:57 AM - 7:27 AM6:26 PM - 8:56 PM
Minor Periods
10:53 AM - 12:23 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 11.65 μg/m3
Sulphur Dioxide: 3.76 μg/m3
Ozone: 68.36 μg/m3
Astronomical
Sun Transit: 12:34 AM
Sunset: 5:44 PM
Daylight: 10 hrs 20 mins
Moon Transit: 6:08 AM
Moonset: 11:50 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%
Best Times for Fishing or Hunting
Major Periods
5:38 AM - 8:08 AM7:07 PM - 9:37 PM
Minor Periods
11:20 AM - 12:50 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 11.37 μg/m3
Sulphur Dioxide: 3.7 μg/m3
Ozone: 62.12 μg/m3
Astronomical
Sun Transit: 12:34 AM
Sunset: 5:45 PM
Daylight: 10 hrs 21 mins
Moon Transit: 6:50 AM
Moonset: 12:20 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%
Best Times for Fishing or Hunting
Major Periods
6:20 AM - 8:50 AM7:50 PM - 10:20 PM
Minor Periods
11:50 AM - 1:20 PM12:45 AM - 2:15 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.85 μg/m3
Sulphur Dioxide: 4.42 μg/m3
Ozone: 74.6 μg/m3
Astronomical
Sun Transit: 12:35 AM
Sunset: 5:46 PM
Daylight: 10 hrs 22 mins
Moon Transit: 7:33 AM
Moonset: 12:51 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%
Best Times for Fishing or Hunting
Major Periods
7:03 AM - 9:33 AM8:35 PM - 11:05 PM
Minor Periods
12:21 AM - 1:51 PM1:41 AM - 3:11 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 9.51 μg/m3
Sulphur Dioxide: 4.26 μg/m3
Ozone: 62.46 μg/m3
Astronomical
Sun Transit: 12:35 AM
Sunset: 5:47 PM
Daylight: 10 hrs 23 mins
Moon Transit: 8:19 AM
Moonset: 1:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 15.9%
Best Times for Fishing or Hunting
Major Periods
7:49 AM - 10:19 AM9:22 PM - 11:52 PM
Minor Periods
12:57 AM - 2:27 PM2:38 AM - 4:08 AM
Action Rating: 3 out of 5
