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

Current Water Temperature

86.5°F

Measurement Time: Thursday, August 28, 2025, 6:12 AM EDT

Today's Tides

High: August 28, 12:18 AM, 4.50 ft
 Low: August 28, 6:08 AM, 0.73 ft
High: August 28, 12:52 PM, 4.71 ft
 Low: August 28, 6:56 PM, 1.16 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: 72%
Feels Like: 86.4°F
Wind: NE 5.1 mph
Wind Gusts: 8.3 mph
Pressure: 30.08 in
Precipitation: 0 in
Cloud Cover: 50%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 86°F
L: 81°F
Patchy rain nearby
Fri
H: 84°F
L: 77°F
Heavy rain
Sat
H: 82°F
L: 77°F
Moderate rain
Sun
H: 85°F
L: 75°F
Moderate rain
Mon
H: 82°F
L: 77°F

Air Quality

PM2.5: 19.43 μg/m3
PM10: 24.42 μg/m3
Carbon Monoxide: 366.3 μg/m3
Nitrogen Dioxide: 7.96 μg/m3
Sulphur Dioxide: 9.62 μg/m3
Ozone: 127 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:26 PM
Sunset: 7:53 PM
Daylight: 12 hrs 52 mins
Moonrise: 11:55 AM
Moon Transit: 5:20 PM
Moonset: 10:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

5:39 AM - 8:09 AM
4:50 PM - 7:20 PM

Minor Periods

10:11 PM - 11:41 PM
11:25 AM - 12:55 AM

Action Rating: 2 out of 5

Special Weather Statement issued August 28 at 1:57AM EDT by NWS Jacksonville FL

Effective: Thu August 28, 2025, 1:57 AM
Expires: Thu August 28, 2025, 2:30 AM

At 157 AM EDT, Doppler radar was tracking showers and a few thunderstorms along a line extending from near Orange Springs to near Crescent City. Movement was northeast at 5 mph. HAZARD...Wind gusts around 40 mph and minor flooding due to heavy rainfall. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor flooding due to heavy rainfall is possible. Locations impacted include... Crescent City, Pomona Park, Andalusia, Lake Delancy, Fruitland, Welaka, Hog Valley, Lake Como, and Georgetown.

If outdoors, consider seeking shelter inside a building.


Special Weather Statement issued August 28 at 1:57AM EDT by NWS Jacksonville FL

Effective: Thu August 28, 2025, 1:57 AM
Expires: Thu August 28, 2025, 2:30 AM

At 157 AM EDT, Doppler radar was tracking showers and a few thunderstorms along a line extending from near Orange Springs to near Crescent City. Movement was northeast at 5 mph. HAZARD...Wind gusts around 40 mph and minor flooding due to heavy rainfall. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor flooding due to heavy rainfall is possible. Locations impacted include... Crescent City, Pomona Park, Andalusia, Lake Delancy, Fruitland, Welaka, Hog Valley, Lake Como, and Georgetown.

If outdoors, consider seeking shelter inside a building.
Thursday, August 28, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 82.7°F
Average Humidity: 74%
Chance of Rain: 70%
Wind: 8.7 mph
UV Index: 1.8

Air Quality

AQI: 2 - Moderate
PM2.5: 21.58 μg/m3
PM10: 26.05 μg/m3
Carbon Monoxide: 352.98 μg/m3
Nitrogen Dioxide: 11.12 μg/m3
Sulphur Dioxide: 9.56 μg/m3
Ozone: 121.32 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:26 PM
Sunset: 7:53 PM
Daylight: 12 hrs 52 mins
Moonrise: 11:55 AM
Moon Transit: 5:20 PM
Moonset: 10:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

5:39 AM - 8:09 AM
4:50 PM - 7:20 PM

Minor Periods

10:11 PM - 11:41 PM
11:25 AM - 12:55 AM

Action Rating: 2 out of 5

Friday, August 29, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 80.7°F
Average Humidity: 81%
Chance of Rain: 86%
Wind: 10.3 mph
UV Index: 1.8

Air Quality

AQI: 2 - Moderate
PM2.5: 19.12 μg/m3
PM10: 23 μg/m3
Carbon Monoxide: 384.28 μg/m3
Nitrogen Dioxide: 17.04 μg/m3
Sulphur Dioxide: 10.89 μg/m3
Ozone: 104.32 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 1:26 PM
Sunset: 7:52 PM
Daylight: 12 hrs 51 mins
Moonrise: 12:52 AM
Moon Transit: 6:05 PM
Moonset: 11:15 PM
Moon Phase: Waxing Crescent
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

6:23 AM - 8:53 AM
5:35 PM - 8:05 PM

Minor Periods

12:00 AM - 12:00 AM
12:22 AM - 1:52 PM

Action Rating: 3 out of 5

Saturday, August 30, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 79.8°F
Average Humidity: 83%
Chance of Rain: 89%
Wind: 6.5 mph
UV Index: 0

Air Quality

AQI: 2 - Moderate
PM2.5: 19.34 μg/m3
PM10: 21.44 μg/m3
Carbon Monoxide: 363.34 μg/m3
Nitrogen Dioxide: 15.9 μg/m3
Sulphur Dioxide: 9.4 μg/m3
Ozone: 98.08 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 1:26 PM
Sunset: 7:50 PM
Daylight: 12 hrs 49 mins
Moonrise: 1:49 PM
Moon Transit: 6:53 PM
Moonset: 12:15 AM
Moon Phase: First Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

7:10 AM - 9:40 AM
6:23 PM - 8:53 PM

Minor Periods

1:19 PM - 2:49 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, August 31, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 80.1°F
Average Humidity: 69%
Chance of Rain: 89%
Wind: 15.2 mph
UV Index: 6

Air Quality

AQI: 1 - Good
PM2.5: 6.62 μg/m3
PM10: 7.34 μg/m3
Carbon Monoxide: 285.18 μg/m3
Nitrogen Dioxide: 10.8 μg/m3
Sulphur Dioxide: 4.84 μg/m3
Ozone: 58.85 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 1:25 PM
Sunset: 7:49 PM
Daylight: 12 hrs 47 mins
Moonrise: 2:47 PM
Moon Transit: 7:44 PM
Moonset: 12:55 AM
Moon Phase: First Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

7:59 AM - 10:29 AM
7:14 PM - 9:44 PM

Minor Periods

2:17 PM - 3:47 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, September 1, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 79.8°F
Average Humidity: 66%
Chance of Rain: 88%
Wind: 14.5 mph
UV Index: 6

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: 7:03 AM
Sun Transit: 1:25 PM
Sunset: 7:48 PM
Daylight: 12 hrs 45 mins
Moonrise: 3:42 PM
Moon Transit: 8:37 PM
Moonset: 12:41 AM
Moon Phase: First Quarter
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

8:51 AM - 11:21 AM
8:07 PM - 10:37 PM

Minor Periods

3:12 PM - 4:42 PM
12:11 AM - 1:41 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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