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

Current Water Temperature

85.1°F

Measurement Time: Thursday, September 3, 2026, 8:30 PM EDT

Temperature Locations

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Local Points of Interest

Riverfront Park; Marco Lake

St. Johns River

Station Name: ST JOHNS RIVER BL MARCO LK AT JACKSONVILLE, FL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet

Nearest Address:
1799 River Rd
Jacksonville, FL 32207
Duval County

GPS Coordinates: 30.30478056, -81.6601

Nearby Water Temperatures

St. Johns River, Jacksonville, FL (1.3 mi)
St. Johns River, Jacksonville, FL (3.7 mi)
St. Johns River, Jacksonville, FL (4.5 mi)
Cedar River, Jacksonville, FL (5 mi)
Pottsburg Creek, Jacksonville, FL (5.5 mi)
St. Johns River, Jacksonville, FL (7.9 mi)
St. Johns River, Jacksonville, FL (8.3 mi)
St. Johns River, Jacksonville, FL (8.3 mi)
Ortega River, Jacksonville, FL (8.3 mi)
St. Johns River, Orange Park, FL (8.7 mi)
Broward River, Jacksonville, FL (9.6 mi)
Trout River, Jacksonville, FL (10.8 mi)
Dunn Creek, Jacksonville, FL (11 mi)
Julington Creek, Jacksonville, FL (12.4 mi)
Clapboard Creek, Jacksonville, FL (12.9 mi)

Weather for Jacksonville, Florida

Current Weather

79°F
Mostly Clear
Mostly Clear
88%
SE 5 mph
75°F

Weather Forecast

Partly Cloudy
Overnight
77°F - Partly Cloudy
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Friday
90°F - Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Showers And Thunderstorms Likely then Mostly Cloudy
Friday Night
77°F - Showers And Thunderstorms Likely then Mostly Cloudy
Mostly Sunny then Chance Showers And Thunderstorms
Saturday
91°F - Mostly Sunny then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms then Partly Cloudy
Saturday Night
77°F - Chance Showers And Thunderstorms then Partly Cloudy
Mostly Sunny then Showers And Thunderstorms Likely
Sunday
92°F - Mostly Sunny then Showers And Thunderstorms Likely
Showers And Thunderstorms Likely
Sunday Night
76°F - Showers And Thunderstorms Likely
Showers And Thunderstorms
Labor Day
88°F - Showers And Thunderstorms
Showers And Thunderstorms then Chance Showers And Thunderstorms
Monday Night
76°F - Showers And Thunderstorms then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Tuesday
87°F - Chance Showers And Thunderstorms
Showers And Thunderstorms Likely
Tuesday Night
76°F - Showers And Thunderstorms Likely
Chance Showers And Thunderstorms
Wednesday
88°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms then Partly Cloudy
Wednesday Night
76°F - Chance Showers And Thunderstorms then Partly Cloudy
Mostly Sunny then Chance Showers And Thunderstorms
Thursday
90°F - Mostly Sunny then Chance Showers And Thunderstorms

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:25 PM
Sunset: 7:45 PM
Daylight: 12 hrs 40 mins
Moonrise: 12:52 AM
Moon Transit: 7:19 AM
Moonset: 2:50 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:49 AM - 9:19 AM
8:30 PM - 11:00 PM

Minor Periods

2:20 PM - 3:50 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:05 AM
Sun Transit: 1:25 PM
Sunset: 7:45 PM
Daylight: 12 hrs 40 mins
Moonrise: 12:52 AM
Moon Transit: 7:19 AM
Moonset: 2:50 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:49 AM - 9:19 AM
8:30 PM - 11:00 PM

Minor Periods

2:20 PM - 3:50 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:05 AM
Sun Transit: 1:25 PM
Sunset: 7:45 PM
Daylight: 12 hrs 40 mins
Moonrise: 12:52 AM
Moon Transit: 7:19 AM
Moonset: 2:50 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:49 AM - 9:19 AM
8:30 PM - 11:00 PM

Minor Periods

2:20 PM - 3:50 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:05 AM
Sun Transit: 1:25 PM
Sunset: 7:45 PM
Daylight: 12 hrs 40 mins
Moonrise: 12:52 AM
Moon Transit: 7:19 AM
Moonset: 2:50 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:49 AM - 9:19 AM
8:30 PM - 11:00 PM

Minor Periods

2:20 PM - 3:50 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:06 AM
Sun Transit: 1:25 PM
Sunset: 7:44 PM
Daylight: 12 hrs 39 mins
Moonrise: 12:51 AM
Moon Transit: 8:22 AM
Moonset: 3:52 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:52 AM - 10:22 AM
12:00 AM - 12:00 AM

Minor Periods

3:22 PM - 4:52 PM
12:21 AM - 1:51 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:06 AM
Sun Transit: 1:25 PM
Sunset: 7:44 PM
Daylight: 12 hrs 39 mins
Moonrise: 12:51 AM
Moon Transit: 8:22 AM
Moonset: 3:52 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:52 AM - 10:22 AM
12:00 AM - 12:00 AM

Minor Periods

3:22 PM - 4:52 PM
12:21 AM - 1:51 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:06 AM
Sun Transit: 1:24 PM
Sunset: 7:43 PM
Daylight: 12 hrs 37 mins
Moonrise: 1:57 AM
Moon Transit: 9:24 AM
Moonset: 4:48 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:54 AM - 11:24 AM
12:00 AM - 12:00 AM

Minor Periods

4:18 PM - 5:48 PM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:06 AM
Sun Transit: 1:24 PM
Sunset: 7:43 PM
Daylight: 12 hrs 37 mins
Moonrise: 1:57 AM
Moon Transit: 9:24 AM
Moonset: 4:48 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:54 AM - 11:24 AM
12:00 AM - 12:00 AM

Minor Periods

4:18 PM - 5:48 PM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:07 AM
Sun Transit: 1:24 PM
Sunset: 7:42 PM
Daylight: 12 hrs 35 mins
Moonrise: 3:07 AM
Moon Transit: 10:24 AM
Moonset: 5:35 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:54 AM - 12:24 AM

Minor Periods

5:05 PM - 6:35 PM
2:37 AM - 4:07 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:07 AM
Sun Transit: 1:24 PM
Sunset: 7:42 PM
Daylight: 12 hrs 35 mins
Moonrise: 3:07 AM
Moon Transit: 10:24 AM
Moonset: 5:35 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:54 AM - 12:24 AM

Minor Periods

5:05 PM - 6:35 PM
2:37 AM - 4:07 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:07 AM
Sun Transit: 1:24 PM
Sunset: 7:41 PM
Daylight: 12 hrs 33 mins
Moonrise: 4:18 AM
Moon Transit: 11:20 AM
Moonset: 6:16 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:50 AM - 1:20 PM

Minor Periods

5:46 PM - 7:16 PM
3:48 AM - 5:18 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:07 AM
Sun Transit: 1:24 PM
Sunset: 7:41 PM
Daylight: 12 hrs 33 mins
Moonrise: 4:18 AM
Moon Transit: 11:20 AM
Moonset: 6:16 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:50 AM - 1:20 PM

Minor Periods

5:46 PM - 7:16 PM
3:48 AM - 5:18 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:08 AM
Sun Transit: 1:23 PM
Sunset: 7:39 PM
Daylight: 12 hrs 32 mins
Moonrise: 5:26 AM
Moon Transit: 12:12 AM
Moonset: 6:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
11:42 AM - 2:12 PM

Minor Periods

6:21 PM - 7:51 PM
4:56 AM - 6:26 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:08 AM
Sun Transit: 1:23 PM
Sunset: 7:39 PM
Daylight: 12 hrs 32 mins
Moonrise: 5:26 AM
Moon Transit: 12:12 AM
Moonset: 6:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
11:42 AM - 2:12 PM

Minor Periods

6:21 PM - 7:51 PM
4:56 AM - 6:26 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 7:08 AM
Sun Transit: 1:23 PM
Sunset: 7:38 PM
Daylight: 12 hrs 30 mins
Moonrise: 6:32 AM
Moon Transit: 1:01 PM
Moonset: 7:22 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:16 AM - 3:46 AM
12:31 AM - 3:01 PM

Minor Periods

6:52 PM - 8:22 PM
6:02 AM - 7:32 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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