Water Temperature of the St. Johns River in Jacksonville, FL
Current Water Temperature
Measurement Time: Tuesday, November 11, 2025, 3:30 PM 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 / 0 meters
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 (5.0 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 (10.0 mi)
Clapboard Creek, Jacksonville, FL (12.2 mi)
Julington Creek, Jacksonville, FL (13.7 mi)
Weather for Jacksonville, Florida
Current Weather

Humidity: 49%
Feels Like: 46.1°F
Wind: N 2.2 mph
Wind Gusts: 3.4 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast

Tue
H: 59°F
L: 34°F

Wed
H: 70°F
L: 36°F

Thu
H: 71°F
L: 51°F

Fri
H: 73°F
L: 53°F

Sat
H: 78°F
L: 56°F
Air Quality
Nitrogen Dioxide: 22.75 μg/m3
Sulphur Dioxide: 6.45 μg/m3
Ozone: 48 μg/m3
Astronomical
Sun Transit: 12:10 AM
Sunset: 5:32 PM
Daylight: 10 hrs 42 mins
Moon Transit: 5:55 AM
Moonset: 12:57 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.1%
Best Times for Fishing or Hunting
Major Periods
5:25 AM - 7:55 AM7:00 PM - 9:30 PM
Minor Periods
12:00 AM - 12:00 AM12:27 AM - 1:57 PM
Action Rating: 2 out of 5
Freeze Warning issued November 11 at 10:55AM EST until November 12 at 8:00AM EST by NWS Jacksonville FL
Effective: Tue November 11, 2025, 10:55 AM
Expires: Wed November 12, 2025, 3:00 AM
* WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...From 11 PM this evening to 8 AM EST Wednesday. * IMPACTS...Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.
Take steps now to protect tender plants from the cold.
Frost Advisory issued November 11 at 10:55AM EST until November 12 at 8:00AM EST by NWS Jacksonville FL
Effective: Tue November 11, 2025, 10:55 AM
Expires: Wed November 12, 2025, 3:00 AM
* WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...Coastal Duval, Coastal Flagler, Northeast Coastal St. Johns, Northern Inland St. Johns, South Central Duval, Southeast Coastal St. Johns, and Southern Inland St. Johns Counties. * WHEN...From 3 AM to 8 AM EST Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Take steps now to protect tender plants from the cold.
Frost Advisory issued November 11 at 10:55AM EST until November 12 at 8:00AM EST by NWS Jacksonville FL
Effective: Tue November 11, 2025, 10:55 AM
Expires: Wed November 12, 2025, 3:00 AM
* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Inland Flagler and Western St. Johns Counties. * WHEN...From 3 AM to 8 AM EST Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Take steps now to protect tender plants from the cold.
Weather Forecast
Average Temperature: 44.5°F
Average Humidity: 30%
Wind: 12.3 mph
UV Index: 0.9
Air Quality
Nitrogen Dioxide: 4.84 μg/m3
Sulphur Dioxide: 3.21 μg/m3
Ozone: 69.64 μg/m3
Astronomical
Sun Transit: 12:10 AM
Sunset: 5:32 PM
Daylight: 10 hrs 42 mins
Moon Transit: 5:55 AM
Moonset: 12:57 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.1%
Best Times for Fishing or Hunting
Major Periods
5:25 AM - 7:55 AM7:00 PM - 9:30 PM
Minor Periods
12:00 AM - 12:00 AM12:27 AM - 1:57 PM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 53°F
Average Humidity: 30%
Wind: 6.3 mph
UV Index: 0.9
Air Quality
Nitrogen Dioxide: 13.09 μg/m3
Sulphur Dioxide: 4.62 μg/m3
Ozone: 69.72 μg/m3
Astronomical
Sun Transit: 12:10 AM
Sunset: 5:31 PM
Daylight: 10 hrs 41 mins
Moon Transit: 6:45 AM
Moonset: 1:31 PM
Moon Phase: Last Quarter
Moon Illumination: 45.8%
Best Times for Fishing or Hunting
Major Periods
6:15 AM - 8:45 AM7:47 PM - 10:17 PM
Minor Periods
1:01 PM - 2:31 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 59.6°F
Average Humidity: 58%
Wind: 5.1 mph
UV Index: 0.9
Air Quality
Nitrogen Dioxide: 10.39 μg/m3
Sulphur Dioxide: 3.74 μg/m3
Ozone: 78.48 μg/m3
Astronomical
Sun Transit: 12:11 AM
Sunset: 5:31 PM
Daylight: 10 hrs 39 mins
Moon Transit: 7:30 AM
Moonset: 2:00 PM
Moon Phase: Last Quarter
Moon Illumination: 34.7%
Best Times for Fishing or Hunting
Major Periods
7:00 AM - 9:30 AM8:30 PM - 11:00 PM
Minor Periods
1:30 PM - 3:00 PM12:22 AM - 1:52 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 62.6°F
Average Humidity: 64%
Wind: 6.9 mph
UV Index: 0.9
Air Quality
Nitrogen Dioxide: 28.77 μg/m3
Sulphur Dioxide: 9.44 μg/m3
Ozone: 80.24 μg/m3
Astronomical
Sun Transit: 12:11 AM
Sunset: 5:30 PM
Daylight: 10 hrs 38 mins
Moon Transit: 8:12 AM
Moonset: 2:28 PM
Moon Phase: Last Quarter
Moon Illumination: 24.4%
Best Times for Fishing or Hunting
Major Periods
7:42 AM - 10:12 AM9:11 PM - 11:41 PM
Minor Periods
1:58 PM - 3:28 PM1:19 AM - 2:49 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 65.6°F
Average Humidity: 56%
Wind: 5.4 mph
UV Index: 0.9
Air Quality
Nitrogen Dioxide: 16.52 μg/m3
Sulphur Dioxide: 6.5 μg/m3
Ozone: 83.31 μg/m3
Astronomical
Sun Transit: 12:11 AM
Sunset: 5:30 PM
Daylight: 10 hrs 37 mins
Moon Transit: 8:52 AM
Moonset: 2:53 PM
Moon Phase: Waning Crescent
Moon Illumination: 15.4%
Best Times for Fishing or Hunting
Major Periods
8:22 AM - 10:52 AM12:00 AM - 12:00 AM
Minor Periods
2:23 PM - 3:53 PM2:15 AM - 3:45 AM
Action Rating: 2 out of 5
