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

Current Water Temperature

52.2°F

Measurement Time: Sunday, February 8, 2026, 3:30 AM EST

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

44.1°F
Sunny
Sunny
43.9°F
45.1°F
55%
NE 2.2 mph
6.7 mph
41.7°F
34.8°F
0 in
0%
9 mi
1027 mbar
1.2

Five Day Weather Forecast

Sunny
Sun
H: 66°F
L: 41°F
Sunny
Mon
H: 70°F
L: 45°F
Sunny
Tue
H: 72°F
L: 50°F
Partly Cloudy
Wed
H: 75°F
L: 54°F
Patchy rain nearby
Thu
H: 75°F
L: 56°F

Air Quality

AQI: 1 - Good
PM2.5: 10.85 μg/m3
PM10: 14.95 μg/m3
Carbon Monoxide: 196.85 μg/m3
Nitrogen Dioxide: 3.25 μg/m3
Sulphur Dioxide: 7.25 μg/m3
Ozone: 103 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 12:40 AM
Sunset: 6:10 PM
Daylight: 10 hrs 57 mins
Moonrise: 12:00 AM
Moon Transit: 5:27 AM
Moonset: 10:49 AM
Moon Phase: Last Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
6:28 PM - 8:58 PM

Minor Periods

10:19 AM - 11:49 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Freeze Warning issued February 7 at 12:27PM EST until February 8 at 8:00AM EST by NWS Jacksonville FL

Effective: Sat February 7, 2026, 12:27 PM
Expires: Sun February 8, 2026, 8:00 AM

* WHAT...Sub-freezing temperatures as low as 31 expected with frost. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...From 3 AM to 8 AM EST Sunday. * IMPACTS...Appropriate action should be taken to ensure tender vegetation and outdoor pets have adequate protection from the cold temperatures. Young children, the elderly and the homeless are especially vulnerable to the cold. Take measures to protect them.

Take steps now to protect tender plants from the cold.


Frost Advisory issued February 7 at 12:27PM EST until February 8 at 8:00AM EST by NWS Jacksonville FL

Effective: Sat February 7, 2026, 12:27 PM
Expires: Sun February 8, 2026, 8:00 AM

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Western Clay, Bradford, Eastern Alachua, Gilchrist, Southeastern Columbia, Southwestern Columbia, Suwannee, Union, and Western Alachua Counties. * WHEN...From 3 AM to 8 AM EST Sunday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.
Sunday, February 8, 2026

Weather Forecast

Sunny
66.4°F
41°F
51.9°F
65%
0 in
0%
0%
5.4 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 11.53 μg/m3
PM10: 14.32 μg/m3
Carbon Monoxide: 275.29 μg/m3
Nitrogen Dioxide: 14.19 μg/m3
Sulphur Dioxide: 5.61 μg/m3
Ozone: 76.52 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 12:40 AM
Sunset: 6:10 PM
Daylight: 10 hrs 57 mins
Moonrise: 12:00 AM
Moon Transit: 5:27 AM
Moonset: 10:49 AM
Moon Phase: Last Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
6:28 PM - 8:58 PM

Minor Periods

10:19 AM - 11:49 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Monday, February 9, 2026

Weather Forecast

Sunny
69.6°F
44.8°F
54.9°F
63%
0 in
0%
0%
6 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 13.32 μg/m3
PM10: 16.67 μg/m3
Carbon Monoxide: 335.13 μg/m3
Nitrogen Dioxide: 13.21 μg/m3
Sulphur Dioxide: 5.44 μg/m3
Ozone: 90.16 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 12:40 AM
Sunset: 6:10 PM
Daylight: 10 hrs 59 mins
Moonrise: 12:58 AM
Moon Transit: 6:12 AM
Moonset: 11:23 AM
Moon Phase: Last Quarter
Moon Illumination: 41.2%

Best Times for Fishing or Hunting

Major Periods

5:42 AM - 8:12 AM
7:15 PM - 9:45 PM

Minor Periods

10:53 AM - 12:23 AM
12:28 AM - 1:58 AM

Action Rating: 2 out of 5

Tuesday, February 10, 2026

Weather Forecast

Sunny
72°F
50.4°F
60.1°F
56%
0 in
0%
0%
6.5 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 10.62 μg/m3
PM10: 12.14 μg/m3
Carbon Monoxide: 270.77 μg/m3
Nitrogen Dioxide: 11.57 μg/m3
Sulphur Dioxide: 4.43 μg/m3
Ozone: 86.04 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 12:40 AM
Sunset: 6:11 PM
Daylight: 11 hrs mins
Moonrise: 1:55 AM
Moon Transit: 7:00 AM
Moonset: 12:03 AM
Moon Phase: Last Quarter
Moon Illumination: 30.3%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
8:04 PM - 10:34 PM

Minor Periods

11:33 AM - 1:03 PM
1:25 AM - 2:55 AM

Action Rating: 2 out of 5

Wednesday, February 11, 2026

Weather Forecast

Partly Cloudy
75.2°F
54.3°F
63.8°F
59%
0 in
0%
0%
9.8 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 9.52 μg/m3
PM10: 10.94 μg/m3
Carbon Monoxide: 214.89 μg/m3
Nitrogen Dioxide: 10.33 μg/m3
Sulphur Dioxide: 3.62 μg/m3
Ozone: 80.88 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:40 AM
Sunset: 6:12 PM
Daylight: 11 hrs 2 mins
Moonrise: 2:52 AM
Moon Transit: 7:50 AM
Moonset: 12:48 AM
Moon Phase: Last Quarter
Moon Illumination: 20.5%

Best Times for Fishing or Hunting

Major Periods

7:20 AM - 9:50 AM
8:55 PM - 11:25 PM

Minor Periods

12:18 AM - 1:48 PM
2:22 AM - 3:52 AM

Action Rating: 3 out of 5

Thursday, February 12, 2026

Weather Forecast

Patchy rain nearby
74.8°F
56.2°F
63°F
75%
0.01 in
78%
0%
7.4 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 8.27 μg/m3
PM10: 9.42 μg/m3
Carbon Monoxide: 179.2 μg/m3
Nitrogen Dioxide: 7.11 μg/m3
Sulphur Dioxide: 2.32 μg/m3
Ozone: 76.23 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:40 AM
Sunset: 6:13 PM
Daylight: 11 hrs 4 mins
Moonrise: 3:46 AM
Moon Transit: 8:42 AM
Moonset: 1:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%

Best Times for Fishing or Hunting

Major Periods

8:12 AM - 10:42 AM
12:00 AM - 12:00 AM

Minor Periods

1:08 PM - 2:38 PM
3:16 AM - 4:46 AM

Action Rating: 2 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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