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

Current Water Temperature

84.6°F

Measurement Time: Friday, September 30, 2016, 7:45 PM EDT

Temperature Locations

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Local Points of Interest

Lake George; Lake Dexter; Volusia, FL; Lake George State Forest

St. Johns River

Station Name: ST. JOHNS RIVER AT ASTOR, FL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 16 feet

Nearest Address:
State Hwy 40
Astor, FL 32102
Volusia County

GPS Coordinates: 29.16692445, -81.5220157

Nearby Water Temperatures

St. Johns River, Deland, FL (13.8 mi)
Blue Springs, Orange City, FL (18.9 mi)
St. Johns River, DeBary, FL (25.7 mi)
Rock Springs, Apopka, FL (28.3 mi)
St. Johns River, Palatka, FL (31.2 mi)
Silver River, Silver Springs, FL (31.5 mi)
Wekiwa Springs, Apopka, FL (31.6 mi)
St. Johns River, Palatka, FL (37.3 mi)
St. Johns River, Hastings, FL (43.8 mi)
Atlantic Ocean, St. Augustine, FL (50.1 mi)
S-405A Canal, Bay Lake, FL (51.4 mi)
Cypress Creek, Orlando, FL (53.6 mi)
Whittenhorse Creek, Horizon West, FL (54.3 mi)
Lake Buena Vista, Orlando, FL (54.8 mi)
St. Johns River, Green Cove Springs, FL (56.7 mi)

Weather for Astor, Florida

Current Weather

63°F
Clear
Clear
63°F
59.6°F
65%
NNE 4 mph
8.5 mph
59.3°F
49.3°F
0 in
0%
9 mi
1024 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 84°F
L: 54°F
Partly Cloudy
Wed
H: 80°F
L: 58°F
Patchy rain nearby
Thu
H: 82°F
L: 59°F
Sunny
Fri
H: 87°F
L: 59°F
Partly Cloudy
Sat
H: 89°F
L: 64°F

Air Quality

PM2.5: 7.85 μg/m3
PM10: 13.35 μg/m3
Carbon Monoxide: 145.85 μg/m3
Nitrogen Dioxide: 3.75 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 103 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:24 PM
Sunset: 7:56 PM
Daylight: 13 hrs 2 mins
Moonrise: 10:11 AM
Moon Transit: 5:38 PM
Moonset: 12:02 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

5:47 AM - 8:17 AM
5:08 PM - 7:38 PM

Minor Periods

9:41 AM - 11:11 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Fire Weather Watch issued April 20 at 2:07AM EDT until April 21 at 6:00PM EDT by NWS Melbourne FL

Effective: Mon April 20, 2026, 2:07 AM
Expires: Tue April 21, 2026, 6:00 PM

...Low humidity and gusty northeast winds may produce a High Fire Danger on Tuesday across interior portions of east central Florida... The National Weather Service in Melbourne has issued a Fire Weather Watch, which is in effect Tuesday afternoon. * AFFECTED AREA... Inland Volusia... Northern Lake... Orange... Seminole... Osceola... Okeechobee... Southern Lake. * WIND...Northeast to east-northeast winds 15 to 20 mph with frequent higher gusts. * HUMIDITY...28 to 35 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended.

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.


Rip Current Statement issued April 19 at 11:39PM EDT until April 21 at 4:00AM EDT by NWS Melbourne FL

Effective: Sun April 19, 2026, 11:39 PM
Expires: Tue April 21, 2026, 4:00 AM

* WHAT...Dangerous rip currents, rough surf and a strong southward-flowing longshore current. * WHERE...Beaches of Volusia, Brevard, Indian River, St Lucie, and Martin Counties. * WHEN...Through late Monday night. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.

Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in the sandbar and in the vicinity of structures such as jetties and piers. Heed the advice of lifeguards, beach patrol flags and signs. Entering the surf is strongly discouraged. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.


Red Flag Warning issued April 20 at 2:42PM EDT until April 21 at 8:00PM EDT by NWS Melbourne FL

Effective: Mon April 20, 2026, 2:42 PM
Expires: Tue April 21, 2026, 8:00 PM

...Low humidity and gusty northeast winds may produce a High Fire Danger on Tuesday across interior portions of east central Florida... The National Weather Service in Melbourne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM EDT Tuesday. * AFFECTED AREA... Inland Volusia... Lake... Orange... Seminole... Osceola... Okeechobee. * WIND...Northeast to east-northeast winds 15 to 20 mph with frequent higher gusts. * HUMIDITY...28 to 35 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended.

A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.


Rip Current Statement issued April 20 at 2:36AM EDT until April 21 at 2:00AM EDT by NWS Jacksonville FL

Effective: Mon April 20, 2026, 2:36 AM
Expires: Tue April 21, 2026, 2:00 AM

* WHAT...Dangerous rip currents expected. * WHERE...Northeast Florida Beaches. * WHEN...From 8 AM EDT this morning through late tonight. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.

Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.


Red Flag Warning issued April 20 at 8:03PM EDT until April 21 at 8:00PM EDT by NWS Jacksonville FL

Effective: Mon April 20, 2026, 8:03 PM
Expires: Tue April 21, 2026, 4:15 AM

...RED FLAG WARNING HAS EXPIRED FOR INLAND SOUTHEAST GEORGIA AND NORTHEAST FLORIDA FOR MONDAY... * AFFECTED AREA...In Florida, Baker, Inland Nassau, Union, Bradford, Gilchrist, Eastern Clay, Eastern Alachua, Eastern Putnam, Eastern Marion, Trout River, Western Clay, Western Alachua, Western Putnam, Central Marion, Northern Columbia, Western Marion, Southeastern Columbia, Western Duval and Southwestern Columbia. * TIMING...Tuesday late morning through evening. * WINDS...Northeast to easterly 10 to 15 mph with gusts 20 to 25 mph. * RELATIVE HUMIDITY...As low as 20 percent. * TEMPERATURES...Up to 85. * LIGHTNING... * IMPACTS...Existing or newly ignited wildfires may exhibit erratic fire behavior, spread rapidly and become difficult to contain or suppress.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.


Tuesday, April 21, 2026

Weather Forecast

Sunny
83.8°F
54.3°F
67.3°F
52%
0 in
0%
0%
10.7 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 7.19 μg/m3
PM10: 11.81 μg/m3
Carbon Monoxide: 147.57 μg/m3
Nitrogen Dioxide: 3.07 μg/m3
Sulphur Dioxide: 1.84 μg/m3
Ozone: 111.84 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:24 PM
Sunset: 7:56 PM
Daylight: 13 hrs 2 mins
Moonrise: 10:11 AM
Moon Transit: 5:38 PM
Moonset: 12:02 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

5:47 AM - 8:17 AM
5:08 PM - 7:38 PM

Minor Periods

9:41 AM - 11:11 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, April 22, 2026

Weather Forecast

Partly Cloudy
79.6°F
57.8°F
67.6°F
57%
0 in
0%
0%
11.2 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 9.14 μg/m3
PM10: 15.37 μg/m3
Carbon Monoxide: 152.09 μg/m3
Nitrogen Dioxide: 3.96 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 107.2 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:24 PM
Sunset: 7:57 PM
Daylight: 13 hrs 4 mins
Moonrise: 11:18 AM
Moon Transit: 6:41 PM
Moonset: 1:05 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

6:51 AM - 9:21 AM
6:11 PM - 8:41 PM

Minor Periods

10:48 AM - 12:18 AM
12:35 AM - 2:05 AM

Action Rating: 3 out of 5

Thursday, April 23, 2026

Weather Forecast

Patchy rain nearby
81.6°F
58.7°F
68.9°F
63%
0.04 in
82%
0%
8.7 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 9.63 μg/m3
PM10: 13.26 μg/m3
Carbon Monoxide: 156.63 μg/m3
Nitrogen Dioxide: 5.66 μg/m3
Sulphur Dioxide: 2.06 μg/m3
Ozone: 93.2 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 1:24 PM
Sunset: 7:57 PM
Daylight: 13 hrs 5 mins
Moonrise: 12:27 AM
Moon Transit: 7:38 PM
Moonset: 1:59 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

7:51 AM - 10:21 AM
7:08 PM - 9:38 PM

Minor Periods

11:57 AM - 1:27 PM
1:29 AM - 2:59 AM

Action Rating: 2 out of 5

Friday, April 24, 2026

Weather Forecast

Sunny
86.9°F
59.4°F
71.5°F
58%
0 in
0%
0%
8.1 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 6.6 μg/m3
PM10: 8.47 μg/m3
Carbon Monoxide: 153.89 μg/m3
Nitrogen Dioxide: 6.4 μg/m3
Sulphur Dioxide: 2.02 μg/m3
Ozone: 76.85 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:24 PM
Sunset: 7:58 PM
Daylight: 13 hrs 7 mins
Moonrise: 1:33 PM
Moon Transit: 8:31 PM
Moonset: 2:44 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

8:46 AM - 11:16 AM
8:01 PM - 10:31 PM

Minor Periods

1:03 PM - 2:33 PM
2:14 AM - 3:44 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Partly Cloudy
88.9°F
64°F
74.4°F
58%
0 in
0%
0%
6 mph
0.4


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: 6:50 AM
Sun Transit: 1:24 PM
Sunset: 7:59 PM
Daylight: 13 hrs 9 mins
Moonrise: 2:37 PM
Moon Transit: 9:19 PM
Moonset: 3:22 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

9:36 AM - 12:06 AM
8:49 PM - 11:19 PM

Minor Periods

2:07 PM - 3:37 PM
2:52 AM - 4:22 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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