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

Current Water Temperature

84.4°F

Measurement Time: Friday, August 8, 2025, 12:00 AM EDT

Today's Tides

 Low: August 8, 2:23 AM, 0.34 ft
High: August 8, 8:33 AM, 4.19 ft
 Low: August 8, 2:13 PM, 0.09 ft
High: August 8, 9:06 PM, 5.18 ft

Temperature Locations

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Local Points of Interest

Mayport, FL; Mayport Naval Station; Huguenot Memorial Park

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St. Johns River

Station Name: Mayport (Bar Pilots Dock)
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet / 0 meters

Sensor Depth: -5.9 feet / -1.8 meters

Nearest Address:
4910 Ocean St
Jacksonville, FL 32233
Duval County

GPS Coordinates: 30.398167, -81.427889

Nearby Water Temperatures

Clapboard Creek, Jacksonville, FL (6.7 mi)
St. Johns River, Jacksonville, FL (7.8 mi)
St. Johns River, Jacksonville, FL (7.9 mi)
Dunn Creek, Jacksonville, FL (10.8 mi)
St. Johns River, Jacksonville, FL (11.4 mi)
Pottsburg Creek, Jacksonville, FL (11.4 mi)
Broward River, Jacksonville, FL (14.7 mi)
St. Johns River, Jacksonville, FL (15.1 mi)
St. Johns River, Jacksonville, FL (15.3 mi)
St. Johns River, Jacksonville, FL (16.3 mi)
Amelia River, Fernandina Beach, FL (19.0 mi)
Trout River, Jacksonville, FL (19.9 mi)
St. Johns River, Jacksonville, FL (20.2 mi)
Cedar River, Jacksonville, FL (20.3 mi)
Durbin Creek, Jacksonville, FL (20.5 mi)

Weather for Jacksonville, Florida

Current Weather

81°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 82%
Feels Like: 87.3°F
Wind: ENE 6.5 mph
Wind Gusts: 13 mph
Pressure: 30.09 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Moderate rain
Fri
H: 84°F
L: 80°F
Heavy rain
Sat
H: 82°F
L: 77°F
Heavy rain
Sun
H: 82°F
L: 77°F
Moderate rain
Mon
H: 87°F
L: 79°F
Patchy rain nearby
Tue
H: 87°F
L: 81°F

Air Quality

PM2.5: 10.36 μg/m3
PM10: 12.21 μg/m3
Carbon Monoxide: 225.7 μg/m3
Nitrogen Dioxide: 7.59 μg/m3
Sulphur Dioxide: 3.52 μg/m3
Ozone: 73 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:31 PM
Sunset: 8:14 PM
Daylight: 13 hrs 25 mins
Moonrise: 8:09 PM
Moon Transit: 12:37 AM
Moonset: 5:52 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:07 AM - 2:37 AM
1:45 PM - 4:15 PM

Minor Periods

7:39 PM - 9:09 PM
5:22 AM - 6:52 AM

Action Rating: 4 out of 5

Friday, August 8, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 81.7°F
Average Humidity: 76%
Chance of Rain: 81%
Wind: 11.4 mph
UV Index: 2.6

Air Quality

AQI: 1 - Good
PM2.5: 9.89 μg/m3
PM10: 12.31 μg/m3
Carbon Monoxide: 229.7 μg/m3
Nitrogen Dioxide: 8.87 μg/m3
Sulphur Dioxide: 6.65 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:31 PM
Sunset: 8:14 PM
Daylight: 13 hrs 25 mins
Moonrise: 8:09 PM
Moon Transit: 12:37 AM
Moonset: 5:52 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:07 AM - 2:37 AM
1:45 PM - 4:15 PM

Minor Periods

7:39 PM - 9:09 PM
5:22 AM - 6:52 AM

Action Rating: 4 out of 5

Saturday, August 9, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 79.7°F
Average Humidity: 82%
Chance of Rain: 89%
Wind: 12.3 mph
UV Index: 1.3

Air Quality

AQI: 1 - Good
PM2.5: 7.4 μg/m3
PM10: 11.2 μg/m3
Carbon Monoxide: 207.79 μg/m3
Nitrogen Dioxide: 10.11 μg/m3
Sulphur Dioxide: 5.91 μg/m3
Ozone: 56.52 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:31 PM
Sunset: 8:13 PM
Daylight: 13 hrs 24 mins
Moonrise: 8:44 PM
Moon Transit: 1:29 AM
Moonset: 6:57 AM
Moon Phase: Full
Moon Illumination: 99.0%

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
2:35 PM - 5:05 PM

Minor Periods

8:14 PM - 9:44 PM
6:27 AM - 7:57 AM

Action Rating: 5 out of 5

Sunday, August 10, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 79.4°F
Average Humidity: 87%
Chance of Rain: 89%
Wind: 9.4 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 5.96 μg/m3
PM10: 8.23 μg/m3
Carbon Monoxide: 214.08 μg/m3
Nitrogen Dioxide: 7.61 μg/m3
Sulphur Dioxide: 4.45 μg/m3
Ozone: 54.88 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:31 PM
Sunset: 8:12 PM
Daylight: 13 hrs 22 mins
Moonrise: 9:16 PM
Moon Transit: 2:19 AM
Moonset: 8:02 AM
Moon Phase: Full
Moon Illumination: 95.5%

Best Times for Fishing or Hunting

Major Periods

1:49 AM - 4:19 AM
3:24 PM - 5:54 PM

Minor Periods

8:46 PM - 10:16 PM
7:32 AM - 9:02 AM

Action Rating: 3 out of 5

Monday, August 11, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 82.8°F
Average Humidity: 76%
Chance of Rain: 87%
Wind: 11 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 7.78 μg/m3
PM10: 10.42 μg/m3
Carbon Monoxide: 235.23 μg/m3
Nitrogen Dioxide: 13.51 μg/m3
Sulphur Dioxide: 3.22 μg/m3
Ozone: 36.92 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:30 PM
Sunset: 8:11 PM
Daylight: 13 hrs 21 mins
Moonrise: 9:47 PM
Moon Transit: 3:07 AM
Moonset: 9:06 AM
Moon Phase: Waning Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
4:11 PM - 6:41 PM

Minor Periods

9:17 PM - 10:47 PM
8:36 AM - 10:06 AM

Action Rating: 2 out of 5

Tuesday, August 12, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 82.6°F
Average Humidity: 76%
Chance of Rain: 88%
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: 6:51 AM
Sun Transit: 1:30 PM
Sunset: 8:10 PM
Daylight: 13 hrs 19 mins
Moonrise: 10:18 PM
Moon Transit: 3:54 AM
Moonset: 10:11 AM
Moon Phase: Waning Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

3:24 AM - 5:54 AM
6:51 AM - 9:21 AM

Minor Periods

9:48 PM - 11:18 PM
9:41 AM - 11:11 AM

Action Rating: 3 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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