Water Temperature of the St. Johns River in Jacksonville, FL

Current Water Temperature

80.1°F

Measurement Time: Monday, September 15, 2025, 8:00 PM EDT

Temperature Locations

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Local Points of Interest

Dames Point Bridge; Henry H Buckman Bridge

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St. Johns River

Station Name: ST JOHNS R DAMES POINT BRIDGE AT JACKSONVILLE, FL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet / 0 meters

Nearest Address:
I-295 (Dames Point Bridge)
Jacksonville, FL 32257
Duval County

GPS Coordinates: 30.3860727, -81.55814749

Nearby Water Temperatures

St. Johns River, Jacksonville, FL (0.1 mi)
St. Johns River, Jacksonville, FL (3.9 mi)
Clapboard Creek, Jacksonville, FL (4.8 mi)
Dunn Creek, Jacksonville, FL (5.3 mi)
Pottsburg Creek, Jacksonville, FL (6.9 mi)
Broward River, Jacksonville, FL (7.7 mi)
St. Johns River, Jacksonville, FL (7.8 mi)
St. Johns River, Jacksonville, FL (7.8 mi)
St. Johns River, Jacksonville, FL (8.3 mi)
St. Johns River, Jacksonville, FL (10.5 mi)
Trout River, Jacksonville, FL (12.5 mi)
Cedar River, Jacksonville, FL (13.0 mi)
St. Johns River, Jacksonville, FL (15.0 mi)
St. Johns River, Orange Park, FL (16.3 mi)
Ortega River, Jacksonville, FL (16.4 mi)

Weather for Jacksonville, Florida

Current Weather

75°F
Clear
Conditions: Clear
Humidity: 79%
Feels Like: 79°F
Wind: NE 3.1 mph
Wind Gusts: 5.5 mph
Pressure: 30.09 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Tue
H: 92°F
L: 72°F
Partly Cloudy
Wed
H: 88°F
L: 73°F
Sunny
Thu
H: 91°F
L: 75°F
Sunny
Fri
H: 89°F
L: 73°F
Patchy rain nearby
Sat
H: 87°F
L: 75°F

Air Quality

PM2.5: 19.43 μg/m3
PM10: 24.24 μg/m3
Carbon Monoxide: 371.85 μg/m3
Nitrogen Dioxide: 27.38 μg/m3
Sulphur Dioxide: 7.4 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 1:20 PM
Sunset: 7:30 PM
Daylight: 12 hrs 18 mins
Moonrise: 1:51 AM
Moon Transit: 9:17 AM
Moonset: 4:38 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

8:47 AM - 11:17 AM
12:00 AM - 12:00 AM

Minor Periods

4:08 PM - 5:38 PM
1:21 AM - 2:51 AM

Action Rating: 2 out of 5

Coastal Flood Advisory issued September 15 at 8:00PM EDT until September 16 at 8:00PM EDT by NWS Jacksonville FL

Effective: Mon September 15, 2025, 8:00 PM
Expires: Tue September 16, 2025, 11:00 AM

* WHAT...Minor coastal flooding. * WHERE...Coastal Duval, Coastal Flagler, Northeast Coastal St. Johns and Southeast Coastal St. Johns Counties. * WHEN...Until 8 PM EDT Tuesday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued September 15 at 8:00PM EDT until September 16 at 8:00PM EDT by NWS Jacksonville FL

Effective: Mon September 15, 2025, 8:00 PM
Expires: Tue September 16, 2025, 11:00 AM

* WHAT...Minor coastal flooding. * WHERE...St Johns River Basin. * WHEN...Until 8 PM EDT Tuesday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued September 15 at 8:00PM EDT until September 16 at 8:00PM EDT by NWS Jacksonville FL

Effective: Mon September 15, 2025, 8:00 PM
Expires: Tue September 16, 2025, 11:00 AM

* WHAT...Minor coastal flooding. * WHERE...St Johns River Basin. * WHEN...Until 8 PM EDT Tuesday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued September 15 at 8:00PM EDT until September 16 at 8:00PM EDT by NWS Jacksonville FL

Effective: Mon September 15, 2025, 8:00 PM
Expires: Tue September 16, 2025, 11:00 AM

* WHAT...Minor coastal flooding. * WHERE...Coastal Duval, Coastal Flagler, Northeast Coastal St. Johns and Southeast Coastal St. Johns Counties. * WHEN...Until 8 PM EDT Tuesday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.


Coastal Flood Advisory issued September 15 at 8:00PM EDT until September 16 at 8:00PM EDT by NWS Jacksonville FL

Effective: Mon September 15, 2025, 8:00 PM
Expires: Tue September 16, 2025, 11:00 AM

* WHAT...Minor coastal flooding. * WHERE...St Johns River Basin. * WHEN...Until 8 PM EDT Tuesday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Tuesday, September 16, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 79.6°F
Average Humidity: 74%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 2

Air Quality

AQI: 2 - Moderate
PM2.5: 16.62 μg/m3
PM10: 20.45 μg/m3
Carbon Monoxide: 371.41 μg/m3
Nitrogen Dioxide: 15.98 μg/m3
Sulphur Dioxide: 8.77 μg/m3
Ozone: 104.96 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 1:20 PM
Sunset: 7:30 PM
Daylight: 12 hrs 18 mins
Moonrise: 1:51 AM
Moon Transit: 9:17 AM
Moonset: 4:38 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

8:47 AM - 11:17 AM
12:00 AM - 12:00 AM

Minor Periods

4:08 PM - 5:38 PM
1:21 AM - 2:51 AM

Action Rating: 2 out of 5

Wednesday, September 17, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 80.4°F
Average Humidity: 71%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 1.8

Air Quality

AQI: 2 - Moderate
PM2.5: 19.66 μg/m3
PM10: 24.49 μg/m3
Carbon Monoxide: 385.02 μg/m3
Nitrogen Dioxide: 13.78 μg/m3
Sulphur Dioxide: 9.75 μg/m3
Ozone: 112.8 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 1:20 PM
Sunset: 7:28 PM
Daylight: 12 hrs 17 mins
Moonrise: 2:57 AM
Moon Transit: 10:11 AM
Moonset: 5:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:41 AM - 12:11 AM

Minor Periods

4:49 PM - 6:19 PM
2:27 AM - 3:57 AM

Action Rating: 2 out of 5

Thursday, September 18, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 81.9°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 11.2 mph
UV Index: 1.8

Air Quality

AQI: 2 - Moderate
PM2.5: 20.32 μg/m3
PM10: 26.06 μg/m3
Carbon Monoxide: 361.71 μg/m3
Nitrogen Dioxide: 10.93 μg/m3
Sulphur Dioxide: 7.07 μg/m3
Ozone: 112.6 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 1:20 PM
Sunset: 7:27 PM
Daylight: 12 hrs 15 mins
Moonrise: 4:02 AM
Moon Transit: 11:02 AM
Moonset: 5:54 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:32 AM - 1:02 PM

Minor Periods

5:24 PM - 6:54 PM
3:32 AM - 5:02 AM

Action Rating: 2 out of 5

Friday, September 19, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 80.7°F
Average Humidity: 64%
Chance of Rain: 0%
Wind: 11 mph
UV Index: 2

Air Quality

AQI: 2 - Moderate
PM2.5: 21.72 μg/m3
PM10: 28.12 μg/m3
Carbon Monoxide: 353.63 μg/m3
Nitrogen Dioxide: 13.28 μg/m3
Sulphur Dioxide: 4.8 μg/m3
Ozone: 97.38 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 1:19 PM
Sunset: 7:26 PM
Daylight: 12 hrs 13 mins
Moonrise: 5:04 AM
Moon Transit: 11:48 AM
Moonset: 6:25 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
11:18 AM - 1:48 PM

Minor Periods

5:55 PM - 7:25 PM
4:34 AM - 6:04 AM

Action Rating: 3 out of 5

Saturday, September 20, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 79.1°F
Average Humidity: 71%
Chance of Rain: 85%
Wind: 13.4 mph
UV Index: 0

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: 7:13 AM
Sun Transit: 1:19 PM
Sunset: 7:25 PM
Daylight: 12 hrs 11 mins
Moonrise: 6:03 AM
Moon Transit: 12:31 AM
Moonset: 6:53 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
12:01 AM - 2:31 PM

Minor Periods

6:23 PM - 7:53 PM
5:33 AM - 7:03 AM

Action Rating: 4 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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