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

80.2°F
Clear
Clear
84.4°F
87.3°F
87%
SW 5.4 mph
9.3 mph
80.2°F
75.9°F
0 in
5%
6 mi
1010 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 99°F
L: 77°F
Partly Cloudy
Thu
H: 90°F
L: 78°F
Patchy rain nearby
Fri
H: 94°F
L: 75°F
Sunny
Sat
H: 95°F
L: 76°F
Patchy rain nearby
Sun
H: 79°F
L: 76°F

Air Quality

AQI: 1 - Good
PM2.5: 10.9 μg/m3
PM10: 12 μg/m3
Carbon Monoxide: 110 μg/m3
Nitrogen Dioxide: 5.1 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 73 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:32 PM
Sunset: 8:20 PM
Daylight: 13 hrs 35 mins
Moonrise: 8:39 PM
Moon Transit: 1:17 AM
Moonset: 6:36 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:47 AM - 3:17 AM
2:20 PM - 4:50 PM

Minor Periods

8:09 PM - 9:39 PM
6:06 AM - 7:36 AM

Action Rating: 4 out of 5

Heat Advisory issued July 28 at 2:59PM EDT until July 28 at 7:00PM EDT by NWS Tampa Bay Ruskin FL

Effective: Tue July 28, 2026, 2:59 PM
Expires: Wed July 29, 2026, 3:00 PM

* WHAT...For the first Heat Advisory, heat index values up to 109. For the second Heat Advisory, heat index values up to 108 expected. * WHERE...Coastal Citrus, Inland Citrus, and Sumter Counties. * WHEN...For the first Heat Advisory, until 7 PM EDT this evening. For the second Heat Advisory, from 11 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Heat Advisory issued July 28 at 2:59PM EDT until July 29 at 8:00PM EDT by NWS Tampa Bay Ruskin FL

Effective: Tue July 28, 2026, 2:59 PM
Expires: Wed July 29, 2026, 3:00 PM

* WHAT...For the first Heat Advisory, heat index values up to 109. For the second Heat Advisory, heat index values up to 108 expected. * WHERE...Coastal Citrus, Inland Citrus, and Sumter Counties. * WHEN...For the first Heat Advisory, until 7 PM EDT this evening. For the second Heat Advisory, from 11 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.


Heat Advisory issued July 28 at 7:43PM EDT until July 29 at 8:00PM EDT by NWS Jacksonville FL

Effective: Tue July 28, 2026, 7:43 PM
Expires: Wed July 29, 2026, 4:00 AM

* WHAT...Heat index values up to 110 expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...From 11 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Heat Advisory issued July 28 at 7:43PM EDT until July 28 at 8:00PM EDT by NWS Jacksonville FL

Effective: Tue July 28, 2026, 7:43 PM
Expires: Wed July 29, 2026, 4:00 AM

* WHAT...Heat index values up to 110 expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...From 11 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Heat Advisory issued July 28 at 11:27PM EDT until July 29 at 8:00PM EDT by NWS Jacksonville FL

Effective: Tue July 28, 2026, 11:27 PM
Expires: Wed July 29, 2026, 8:00 PM

* WHAT...Heat index values of 108 to 112 expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...From 11 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Wednesday, July 29, 2026

Weather Forecast

Sunny
98.7°F
77.4°F
86.3°F
68%
0.01 in
17%
0%
10.5 mph
10.7


Air Quality

AQI: 1 - Good
PM2.5: 7.8 μg/m3
PM10: 8.87 μg/m3
Carbon Monoxide: 112.04 μg/m3
Nitrogen Dioxide: 2.98 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 85.5 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:32 PM
Sunset: 8:20 PM
Daylight: 13 hrs 35 mins
Moonrise: 8:39 PM
Moon Transit: 1:17 AM
Moonset: 6:36 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:47 AM - 3:17 AM
2:20 PM - 4:50 PM

Minor Periods

8:09 PM - 9:39 PM
6:06 AM - 7:36 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Partly Cloudy
89.8°F
77.5°F
82°F
79%
0.54 in
77%
0%
8.3 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 6.53 μg/m3
PM10: 7.63 μg/m3
Carbon Monoxide: 109.88 μg/m3
Nitrogen Dioxide: 2.57 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 76.5 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:32 PM
Sunset: 8:19 PM
Daylight: 13 hrs 34 mins
Moonrise: 9:11 PM
Moon Transit: 2:03 AM
Moonset: 7:34 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

1:33 AM - 4:03 AM
3:06 PM - 5:36 PM

Minor Periods

8:41 PM - 10:11 PM
7:04 AM - 8:34 AM

Action Rating: 5 out of 5

Friday, July 31, 2026

Weather Forecast

Patchy rain nearby
94.4°F
75.4°F
81.5°F
80%
0.59 in
79%
0%
11.2 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 5.12 μg/m3
PM10: 5.79 μg/m3
Carbon Monoxide: 107.08 μg/m3
Nitrogen Dioxide: 2.3 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 83.29 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 1:32 PM
Sunset: 8:19 PM
Daylight: 13 hrs 32 mins
Moonrise: 9:40 PM
Moon Transit: 2:48 AM
Moonset: 8:32 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

2:18 AM - 4:48 AM
3:49 PM - 6:19 PM

Minor Periods

9:10 PM - 10:40 PM
8:02 AM - 9:32 AM

Action Rating: 3 out of 5

Saturday, August 1, 2026

Weather Forecast

Sunny
94.6°F
75.8°F
83.4°F
73%
0.01 in
21%
0%
10.3 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 4.25 μg/m3
PM10: 5.12 μg/m3
Carbon Monoxide: 107.5 μg/m3
Nitrogen Dioxide: 2.59 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 69.13 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:32 PM
Sunset: 8:18 PM
Daylight: 13 hrs 31 mins
Moonrise: 10:10 PM
Moon Transit: 3:31 AM
Moonset: 9:29 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

3:01 AM - 5:31 AM
12:00 AM - 12:00 AM

Minor Periods

9:40 PM - 11:10 PM
8:59 AM - 10:29 AM

Action Rating: 2 out of 5

Sunday, August 2, 2026

Weather Forecast

Patchy rain nearby
79.3°F
75.5°F
77°F
85%
0.14 in
77%
0%
8.9 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.44 μg/m3
PM10: 6.64 μg/m3
Carbon Monoxide: 148.33 μg/m3
Nitrogen Dioxide: 5.69 μg/m3
Sulphur Dioxide: 0.42 μg/m3
Ozone: 42.22 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:32 PM
Sunset: 8:17 PM
Daylight: 13 hrs 30 mins
Moonrise: 10:39 PM
Moon Transit: 6:50 PM
Moonset: 10:27 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.9%

Best Times for Fishing or Hunting

Major Periods

6:20 PM - 8:50 PM
6:20 PM - 8:50 PM

Minor Periods

10:09 PM - 11:39 PM
9:57 AM - 11:27 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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