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

Current Water Temperature

85.5°F

Measurement Time: Wednesday, July 23, 2025, 2:36 AM EDT

Temperature Locations

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Local Points of Interest

Jacksonville University

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St. Johns River

Station Name: Jacksonville University
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet / 0 meters

Nearest Address:
2800 University Blvd N
Jacksonville, FL 32211
Duval County

GPS Coordinates: 30.354083, -81.61175

Nearby Water Temperatures

St. Johns River, Jacksonville, FL (3.9 mi)
St. Johns River, Jacksonville, FL (3.9 mi)
St. Johns River, Jacksonville, FL (3.9 mi)
St. Johns River, Jacksonville, FL (4.5 mi)
Pottsburg Creek, Jacksonville, FL (5.3 mi)
Dunn Creek, Jacksonville, FL (7.0 mi)
Broward River, Jacksonville, FL (7.0 mi)
St. Johns River, Jacksonville, FL (7.2 mi)
Clapboard Creek, Jacksonville, FL (8.4 mi)
Cedar River, Jacksonville, FL (9.1 mi)
Trout River, Jacksonville, FL (10.4 mi)
St. Johns River, Jacksonville, FL (11.4 mi)
St. Johns River, Jacksonville, FL (11.8 mi)
Ortega River, Jacksonville, FL (12.7 mi)
St. Johns River, Orange Park, FL (12.9 mi)

Weather for Jacksonville, Florida

Current Weather

80.1°F
Thundery outbreaks in nearby
Conditions: Thundery outbreaks in nearby
Humidity: 87%
Feels Like: 87.6°F
Wind: SE 2.2 mph
Wind Gusts: 2.9 mph
Pressure: 29.99 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Moderate rain
Wed
H: 88°F
L: 79°F
Sunny
Thu
H: 92°F
L: 77°F
Sunny
Fri
H: 94°F
L: 79°F
Sunny
Sat
H: 102°F
L: 79°F
Sunny
Sun
H: 103°F
L: 81°F

Air Quality

PM2.5: 24.98 μg/m3
PM10: 26.27 μg/m3
Carbon Monoxide: 432.9 μg/m3
Nitrogen Dioxide: 11.1 μg/m3
Sulphur Dioxide: 13.14 μg/m3
Ozone: 103 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:33 PM
Sunset: 8:26 PM
Daylight: 13 hrs 46 mins
Moonrise: 5:06 AM
Moon Transit: 12:34 AM
Moonset: 7:58 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:43 AM - 3:13 AM
12:04 AM - 2:34 PM

Minor Periods

7:28 PM - 8:58 PM
4:36 AM - 6:06 AM

Action Rating: 2 out of 5

Wednesday, July 23, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 82.6°F
Average Humidity: 84%
Chance of Rain: 81%
Wind: 10.1 mph
UV Index: 1.9

Air Quality

AQI: 2 - Moderate
PM2.5: 24.32 μg/m3
PM10: 25.16 μg/m3
Carbon Monoxide: 381.25 μg/m3
Nitrogen Dioxide: 11.34 μg/m3
Sulphur Dioxide: 12 μg/m3
Ozone: 120.68 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:33 PM
Sunset: 8:26 PM
Daylight: 13 hrs 46 mins
Moonrise: 5:06 AM
Moon Transit: 12:34 AM
Moonset: 7:58 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:43 AM - 3:13 AM
12:04 AM - 2:34 PM

Minor Periods

7:28 PM - 8:58 PM
4:36 AM - 6:06 AM

Action Rating: 2 out of 5

Thursday, July 24, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 84.2°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 12.5 mph
UV Index: 2.6

Air Quality

AQI: 1 - Good
PM2.5: 12.28 μg/m3
PM10: 13.59 μg/m3
Carbon Monoxide: 325.75 μg/m3
Nitrogen Dioxide: 9.72 μg/m3
Sulphur Dioxide: 7.61 μg/m3
Ozone: 105.84 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:33 PM
Sunset: 8:26 PM
Daylight: 13 hrs 45 mins
Moonrise: 6:15 AM
Moon Transit: 1:33 PM
Moonset: 8:44 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

1:44 AM - 4:14 AM
1:03 PM - 3:33 PM

Minor Periods

8:14 PM - 9:44 PM
5:45 AM - 7:15 AM

Action Rating: 4 out of 5

Friday, July 25, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 85.9°F
Average Humidity: 76%
Chance of Rain: 0%
Wind: 11.6 mph
UV Index: 2.8

Air Quality

AQI: 1 - Good
PM2.5: 15.27 μg/m3
PM10: 20.52 μg/m3
Carbon Monoxide: 283.35 μg/m3
Nitrogen Dioxide: 11.68 μg/m3
Sulphur Dioxide: 9.05 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 1:33 PM
Sunset: 8:25 PM
Daylight: 13 hrs 44 mins
Moonrise: 7:22 AM
Moon Transit: 2:26 PM
Moonset: 9:22 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

2:39 AM - 5:09 AM
1:56 PM - 4:26 PM

Minor Periods

8:52 PM - 10:22 PM
6:52 AM - 8:22 AM

Action Rating: 5 out of 5

Saturday, July 26, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 88.7°F
Average Humidity: 59%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 2.8

Air Quality

AQI: 2 - Moderate
PM2.5: 17.76 μg/m3
PM10: 26.04 μg/m3
Carbon Monoxide: 299.84 μg/m3
Nitrogen Dioxide: 15.17 μg/m3
Sulphur Dioxide: 7.12 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 1:33 PM
Sunset: 8:25 PM
Daylight: 13 hrs 43 mins
Moonrise: 8:27 AM
Moon Transit: 3:14 PM
Moonset: 9:55 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

3:30 AM - 6:00 AM
2:44 PM - 5:14 PM

Minor Periods

9:25 PM - 10:55 PM
7:57 AM - 9:27 AM

Action Rating: 3 out of 5

Sunday, July 27, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 89°F
Average Humidity: 53%
Chance of Rain: 0%
Wind: 10.5 mph
UV Index: 0.1

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: 6:42 AM
Sun Transit: 1:33 PM
Sunset: 8:24 PM
Daylight: 13 hrs 42 mins
Moonrise: 9:27 AM
Moon Transit: 4:00 PM
Moonset: 10:24 PM
Moon Phase: New
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

4:16 AM - 6:46 AM
3:30 PM - 6:00 PM

Minor Periods

9:54 PM - 11:24 PM
8:57 AM - 10:27 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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