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

Current Water Temperature

86.2°F

Measurement Time: Tuesday, August 5, 2025, 6:30 AM EDT

Temperature Locations

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St. Johns River

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

84.9°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 68%
Feels Like: 99.6°F
Wind: WSW 4.3 mph
Wind Gusts: 4.9 mph
Pressure: 30.15 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 4.2

Five Day Weather Forecast

Thundery outbreaks in nearby
Tue
H: 96°F
L: 77°F
Partly Cloudy
Wed
H: 93°F
L: 80°F
Cloudy
Thu
H: 86°F
L: 79°F
Patchy rain nearby
Fri
H: 88°F
L: 77°F
Moderate rain
Sat
H: 90°F
L: 77°F

Air Quality

AQI: 1 - Good
PM2.5: 21.46 μg/m3
PM10: 28.31 μg/m3
Carbon Monoxide: 259 μg/m3
Nitrogen Dioxide: 4.26 μg/m3
Sulphur Dioxide: 15.36 μg/m3
Ozone: 145 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:32 PM
Sunset: 8:17 PM
Daylight: 13 hrs 29 mins
Moonrise: 5:54 PM
Moon Transit: 10:50 PM
Moonset: 2:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

11:01 AM - 1:31 PM
12:00 AM - 12:00 AM

Minor Periods

5:24 PM - 6:54 PM
2:22 AM - 3:52 AM

Action Rating: 2 out of 5

Tuesday, August 5, 2025

Weather Forecast

Conditions: Thundery outbreaks in nearby
Average Temperature: 83.9°F
Average Humidity: 88%
Chance of Rain: 0%
Wind: 10.3 mph
UV Index: 2.6

Air Quality

AQI: 2 - Moderate
PM2.5: 18.27 μg/m3
PM10: 22.5 μg/m3
Carbon Monoxide: 309.32 μg/m3
Nitrogen Dioxide: 10.05 μg/m3
Sulphur Dioxide: 10.06 μg/m3
Ozone: 112.52 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:32 PM
Sunset: 8:17 PM
Daylight: 13 hrs 29 mins
Moonrise: 5:54 PM
Moon Transit: 10:50 PM
Moonset: 2:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

11:01 AM - 1:31 PM
12:00 AM - 12:00 AM

Minor Periods

5:24 PM - 6:54 PM
2:22 AM - 3:52 AM

Action Rating: 2 out of 5

Wednesday, August 6, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 84.6°F
Average Humidity: 86%
Chance of Rain: 0%
Wind: 11.2 mph
UV Index: 2.4

Air Quality

AQI: 2 - Moderate
PM2.5: 21.16 μg/m3
PM10: 24.17 μg/m3
Carbon Monoxide: 324.93 μg/m3
Nitrogen Dioxide: 10.79 μg/m3
Sulphur Dioxide: 14.32 μg/m3
Ozone: 109.04 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:32 PM
Sunset: 8:16 PM
Daylight: 13 hrs 28 mins
Moonrise: 6:45 PM
Moon Transit: 11:44 PM
Moonset: 3:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.4%

Best Times for Fishing or Hunting

Major Periods

11:56 AM - 2:26 PM
12:00 AM - 12:00 AM

Minor Periods

6:15 PM - 7:45 PM
3:17 AM - 4:47 AM

Action Rating: 2 out of 5

Thursday, August 7, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 82.2°F
Average Humidity: 89%
Chance of Rain: 0%
Wind: 11.6 mph
UV Index: 2.4

Air Quality

AQI: 2 - Moderate
PM2.5: 21.58 μg/m3
PM10: 24.29 μg/m3
Carbon Monoxide: 313.02 μg/m3
Nitrogen Dioxide: 15.84 μg/m3
Sulphur Dioxide: 13.11 μg/m3
Ozone: 88.08 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:32 PM
Sunset: 8:16 PM
Daylight: 13 hrs 26 mins
Moonrise: 7:29 PM
Moon Transit: 12:00 AM
Moonset: 4:49 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:51 AM - 3:21 PM

Minor Periods

6:59 PM - 8:29 PM
4:19 AM - 5:49 AM

Action Rating: 3 out of 5

Friday, August 8, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 82°F
Average Humidity: 76%
Chance of Rain: 89%
Wind: 8.7 mph
UV Index: 2.4

Air Quality

AQI: 1 - Good
PM2.5: 8.36 μg/m3
PM10: 10.24 μg/m3
Carbon Monoxide: 347.87 μg/m3
Nitrogen Dioxide: 9.56 μg/m3
Sulphur Dioxide: 6.61 μg/m3
Ozone: 71.4 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:32 PM
Sunset: 8:15 PM
Daylight: 13 hrs 25 mins
Moonrise: 8:09 PM
Moon Transit: 12:38 AM
Moonset: 5:53 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:08 AM - 2:38 AM
1:44 PM - 4:14 PM

Minor Periods

7:39 PM - 9:09 PM
5:23 AM - 6:53 AM

Action Rating: 4 out of 5

Saturday, August 9, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 82.4°F
Average Humidity: 72%
Chance of Rain: 87%
Wind: 8.7 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 12.49 μg/m3
PM10: 14.29 μg/m3
Carbon Monoxide: 334.85 μg/m3
Nitrogen Dioxide: 21.6 μg/m3
Sulphur Dioxide: 8.47 μg/m3
Ozone: 49.92 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:32 PM
Sunset: 8:14 PM
Daylight: 13 hrs 23 mins
Moonrise: 8:45 PM
Moon Transit: 1:30 AM
Moonset: 6:58 AM
Moon Phase: Full
Moon Illumination: 99.0%

Best Times for Fishing or Hunting

Major Periods

1:00 AM - 3:30 AM
2:34 PM - 5:04 PM

Minor Periods

8:15 PM - 9:45 PM
6:28 AM - 7:58 AM

Action Rating: 5 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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