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

Current Water Temperature

81.0°F

Measurement Time: Friday, August 1, 2025, 8:00 AM 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

93.9°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 46%
Feels Like: 104.9°F
Wind: WSW 6.7 mph
Wind Gusts: 7.7 mph
Pressure: 30.12 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 10.7

Five Day Weather Forecast

Sunny
Fri
H: 97°F
L: 80°F
Moderate rain
Sat
H: 94°F
L: 77°F
Heavy rain
Sun
H: 91°F
L: 78°F
Moderate rain
Mon
H: 93°F
L: 79°F
Moderate rain
Tue
H: 92°F
L: 77°F

Air Quality

AQI: 2 - Moderate
PM2.5: 12.58 μg/m3
PM10: 16.47 μg/m3
Carbon Monoxide: 262.7 μg/m3
Nitrogen Dioxide: 3.89 μg/m3
Sulphur Dioxide: 4.26 μg/m3
Ozone: 112 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:32 PM
Sunset: 8:20 PM
Daylight: 13 hrs 35 mins
Moonrise: 2:06 PM
Moon Transit: 7:26 PM
Moonset: 12:11 AM
Moon Phase: First Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

7:44 AM - 10:14 AM
6:56 PM - 9:26 PM

Minor Periods

1:36 PM - 3:06 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Heat Advisory issued August 1 at 1:38AM EDT until August 1 at 7:00PM EDT by NWS Jacksonville FL

Effective: Fri August 1, 2025, 1:38 AM
Expires: Fri August 1, 2025, 7:00 PM

* WHAT...Heat index values up to 110 expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...From 11 AM this morning to 7 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Heat Advisory issued August 1 at 1:38AM EDT until August 1 at 7:00PM EDT by NWS Jacksonville FL

Effective: Fri August 1, 2025, 1:38 AM
Expires: Fri August 1, 2025, 7:00 PM

* WHAT...Heat index values up to 110 expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...From 11 AM this morning to 7 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Heat Advisory issued August 1 at 1:38AM EDT until August 1 at 7:00PM EDT by NWS Jacksonville FL

Effective: Fri August 1, 2025, 1:38 AM
Expires: Fri August 1, 2025, 7:00 PM

* WHAT...Heat index values up to 110 expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...From 11 AM this morning to 7 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Heat Advisory issued August 1 at 1:38AM EDT until August 1 at 7:00PM EDT by NWS Jacksonville FL

Effective: Fri August 1, 2025, 1:38 AM
Expires: Fri August 1, 2025, 7:00 PM

* WHAT...Heat index values up to 110 expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...From 11 AM this morning to 7 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Heat Advisory issued August 1 at 1:38AM EDT until August 1 at 7:00PM EDT by NWS Jacksonville FL

Effective: Fri August 1, 2025, 1:38 AM
Expires: Fri August 1, 2025, 7:00 PM

* WHAT...Heat index values up to 110 expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...From 11 AM this morning to 7 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Friday, August 1, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 88.7°F
Average Humidity: 66%
Chance of Rain: 0%
Wind: 8.7 mph
UV Index: 2.7

Air Quality

AQI: 1 - Good
PM2.5: 9.03 μg/m3
PM10: 11.23 μg/m3
Carbon Monoxide: 295.04 μg/m3
Nitrogen Dioxide: 7.67 μg/m3
Sulphur Dioxide: 4.14 μg/m3
Ozone: 73.52 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:32 PM
Sunset: 8:20 PM
Daylight: 13 hrs 35 mins
Moonrise: 2:06 PM
Moon Transit: 7:26 PM
Moonset: 12:11 AM
Moon Phase: First Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

7:44 AM - 10:14 AM
6:56 PM - 9:26 PM

Minor Periods

1:36 PM - 3:06 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, August 2, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 86°F
Average Humidity: 72%
Chance of Rain: 79%
Wind: 11.6 mph
UV Index: 2.2

Air Quality

AQI: 1 - Good
PM2.5: 10.96 μg/m3
PM10: 12.88 μg/m3
Carbon Monoxide: 304.21 μg/m3
Nitrogen Dioxide: 7.64 μg/m3
Sulphur Dioxide: 5.34 μg/m3
Ozone: 79.52 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:32 PM
Sunset: 8:19 PM
Daylight: 13 hrs 34 mins
Moonrise: 3:03 PM
Moon Transit: 8:13 PM
Moonset: 12:43 AM
Moon Phase: First Quarter
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

8:30 AM - 11:00 AM
7:43 PM - 10:13 PM

Minor Periods

2:33 PM - 4:03 PM
12:13 AM - 1:43 AM

Action Rating: 2 out of 5

Sunday, August 3, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 83.6°F
Average Humidity: 81%
Chance of Rain: 88%
Wind: 8.7 mph
UV Index: 1.4

Air Quality

AQI: 2 - Moderate
PM2.5: 17.54 μg/m3
PM10: 19.02 μg/m3
Carbon Monoxide: 359.57 μg/m3
Nitrogen Dioxide: 9.97 μg/m3
Sulphur Dioxide: 16.43 μg/m3
Ozone: 109.36 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:32 PM
Sunset: 8:19 PM
Daylight: 13 hrs 32 mins
Moonrise: 4:01 PM
Moon Transit: 9:02 PM
Moonset: 1:19 AM
Moon Phase: First Quarter
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

9:17 AM - 11:47 AM
8:32 PM - 11:02 PM

Minor Periods

3:31 PM - 5:01 PM
12:49 AM - 2:19 AM

Action Rating: 3 out of 5

Monday, August 4, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 84.3°F
Average Humidity: 79%
Chance of Rain: 77%
Wind: 9.4 mph
UV Index: 1.9

Air Quality

AQI: 2 - Moderate
PM2.5: 16.04 μg/m3
PM10: 17.05 μg/m3
Carbon Monoxide: 353.94 μg/m3
Nitrogen Dioxide: 10.95 μg/m3
Sulphur Dioxide: 17.87 μg/m3
Ozone: 113.76 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:32 PM
Sunset: 8:18 PM
Daylight: 13 hrs 31 mins
Moonrise: 4:59 PM
Moon Transit: 9:55 PM
Moonset: 2:02 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

10:08 AM - 12:38 AM
9:25 PM - 11:55 PM

Minor Periods

4:29 PM - 5:59 PM
1:32 AM - 3:02 AM

Action Rating: 2 out of 5

Tuesday, August 5, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 83.8°F
Average Humidity: 72%
Chance of Rain: 86%
Wind: 9.2 mph
UV Index: 0.1

Air Quality

AQI: 2 - Moderate
PM2.5: 19.06 μg/m3
PM10: 20.04 μg/m3
Carbon Monoxide: 330.87 μg/m3
Nitrogen Dioxide: 14.4 μg/m3
Sulphur Dioxide: 15.61 μg/m3
Ozone: 99 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:32 PM
Sunset: 8:17 PM
Daylight: 13 hrs 29 mins
Moonrise: 5:54 PM
Moon Transit: 10:49 PM
Moonset: 2:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

11:02 AM - 1:32 PM
12:00 AM - 12:00 AM

Minor Periods

5:24 PM - 6:54 PM
2:21 AM - 3:51 AM

Action Rating: 2 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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