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

Current Water Temperature

84.6°F 29.2°C
Warm Warm & Relaxing
84.6°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Water feels warm and inviting. Safe for extended immersion with virtually no thermal fatigue.

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

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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

61°F
Clear
Conditions: Clear
Humidity: 90%
Feels Like: 62.1°F
Wind: N 2.9 mph
Wind Gusts: 2.9 mph
Pressure: 30 in
Precipitation: 0 in
Cloud Cover: 5%
Visibility: 6 mi
UV Index: 0

Weather Forecast

Sunny
Sun
H: 83°F
L: 61°F
Sunny
Mon
H: 85°F
L: 64°F
Sunny
Tue
H: 84°F
L: 64°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
13.6 μg/m³
Moderate
PM10
15.9 μg/m³
Good
Ozone (O3)
56 μg/m³
Photochemical
NO2
9.6 μg/m³
Nitrogen Dioxide
SO2
1.4 μg/m³
Sulfur Dioxide
CO
156 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 50m daylight
Sunrise 6:44 AM
Solar Noon 12:09 PM
Sunset 5:35 PM
Moon
New • 0%
Moonrise 6:09 AM
Transit 11:36 AM
Moonset 4:59 PM

Best Times for Fishing or Hunting

Major Periods

11:06 AM - 1:36 PM
11:30 PM - 2:00 AM

Minor Periods

5:39 AM - 7:09 AM
4:29 PM - 5:59 PM
Action Rating:
Peak Action 5/5

Flood Warning issued November 7 at 8:42PM EST by NWS Melbourne FL

Effective: Sat November 7, 2026, 8:42 PM
Expires: Sun November 8, 2026, 11:00 AM

...The Flood Warning continues for the following rivers in Florida... St Johns River Near Astor affecting Volusia and Lake Counties. .Heavy rainfall that has occurred upstream will maintain river levels within Moderate flood stage through early next week as a large volume of rainwater works north through the basin. For the St. Johns River...including Astor...Moderate flooding is forecast. * WHAT...Moderate flooding is occurring and forecast. * WHERE...St Johns River near Astor. * WHEN...Until further notice. * IMPACTS...At 3.0 feet, Water approaches or may enter lowest homes on or near Wildhog Road and nearby canals. Flooding reaches the parking lot of the Juno Trail Apartments. Flooding on portions of Alligator Road and Holiday Road. Lowest lying yards along Blue Creek are flooded. Roads at Astor Landing Campground and Lake Dexter Boat Ramp begin to flood. Water enters lower homes closest to the river on McPherson Lane. * ADDITIONAL DETAILS... - At 7:30 PM EST Saturday the stage was 3.0 feet. - Bankfull stage is 2.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 PM EST Saturday was 3.1 feet. - Forecast...The river is expected to remain steady above flood stage at 3.0 to 3.2 feet through the middle of the week. Additional rises are possible thereafter. - Flood stage is 2.3 feet. - http://www.weather.gov/safety/flood


Flood Warning issued November 7 at 10:50AM EST by NWS Melbourne FL

Effective: Sat November 7, 2026, 10:50 AM
Expires: Sun November 8, 2026, 11:30 AM

...The Flood Warning continues for the following rivers in Florida... St Johns River Near Deland affecting Lake and Volusia Counties. .Heavy rainfall has caused the St. Johns River near Deland remain near Minor flood stage. The river is forecast to slowly climb through Minor flood stage this weekend and into next week. For the St. Johns River...including Deland...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...St Johns River near Deland. * WHEN...Until further notice. * IMPACTS...At 4.5 feet, Water moves into yards and approaches buildings around Hontoon Island. * ADDITIONAL DETAILS... - At 9:30 AM EST Saturday the stage was 3.9 feet. - Bankfull stage is 3.5 feet. - Forecast...The river is expected to rise above flood stage just after midnight tonight and continue rising to 4.4 feet early Thursday morning. Additional rises are possible thereafter. - Flood stage is 4.0 feet. - http://www.weather.gov/safety/flood


Flood Warning issued November 7 at 10:46AM EST by NWS Melbourne FL

Effective: Sat November 7, 2026, 10:46 AM
Expires: Sun November 8, 2026, 11:45 AM

...The Flood Warning continues for the following rivers in Florida... St Johns River Near Astor affecting Lake and Volusia Counties. .Heavy rainfall that has occurred upstream will maintain river levels within Moderate flood stage through early next week as a large volume of rainwater works north through the basin. For the St. Johns River...including Astor...Moderate flooding is forecast. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...St Johns River near Astor. * WHEN...Until further notice. * IMPACTS...At 3.0 feet, Water approaches or may enter lowest homes on or near Wildhog Road and nearby canals. Flooding reaches the parking lot of the Juno Trail Apartments. Flooding on portions of Alligator Road and Holiday Road. Lowest lying yards along Blue Creek are flooded. Roads at Astor Landing Campground and Lake Dexter Boat Ramp begin to flood. Water enters lower homes closest to the river on McPherson Lane. * ADDITIONAL DETAILS... - At 9:30 AM EST Saturday the stage was 3.0 feet. - Bankfull stage is 2.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 AM EST Saturday was 3.1 feet. - Forecast...The river is expected to remain steady above flood stage at 3.2 feet. - Flood stage is 2.3 feet. - http://www.weather.gov/safety/flood


Flood Warning issued November 7 at 8:44PM EST by NWS Melbourne FL

Effective: Sat November 7, 2026, 8:44 PM
Expires: Sun November 8, 2026, 11:00 AM

...The Flood Warning continues for the following rivers in Florida... St Johns River Near Deland affecting Volusia and Lake Counties. .Heavy rainfall has caused the St. Johns River near Deland to remain just below flood stage. The river is forecast to slowly climb into Minor flood stage this week. For the St. Johns River...including Deland...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...St Johns River near Deland. * WHEN...Until further notice. * IMPACTS...At 4.5 feet, Water moves into yards and approaches buildings around Hontoon Island. * ADDITIONAL DETAILS... - At 7:30 PM EST Saturday the stage was 3.9 feet. - Bankfull stage is 3.5 feet. - Forecast...The river is expected to rise above flood stage tomorrow evening and continue rising to 4.3 feet Wednesday evening. Additional rises are possible thereafter. - Flood stage is 4.0 feet. - http://www.weather.gov/safety/flood


Sunday, November 8, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 70.1°F
Average Humidity: 71%
Chance of Rain: 17%
Wind: 5.1 mph
UV Index: 5.4

Astronomical

Sun
10h 50m daylight
Sunrise 6:44 AM
Solar Noon 12:09 PM
Sunset 5:35 PM
Moon
New • 0%
Moonrise 6:09 AM
Transit 11:36 AM
Moonset 4:59 PM

Best Times for Fishing or Hunting

Major Periods

11:06 AM - 1:36 PM
11:30 PM - 2:00 AM

Minor Periods

5:39 AM - 7:09 AM
4:29 PM - 5:59 PM
Action Rating:
Peak Action 5/5
Monday, November 9, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 71.9°F
Average Humidity: 75%
Chance of Rain: 11%
Wind: 4.7 mph
UV Index: 5.1

Astronomical

Sun
10h 49m daylight
Sunrise 6:45 AM
Solar Noon 12:09 PM
Sunset 5:34 PM
Moon
New • 2%
Moonrise 7:07 AM
Transit 12:24 PM
Moonset 5:37 PM

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
11:54 AM - 2:24 PM

Minor Periods

6:37 AM - 8:07 AM
5:07 PM - 6:37 PM
Action Rating:
Peak Action 5/5
Tuesday, November 10, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 72.6°F
Average Humidity: 71%
Chance of Rain: 9%
Wind: 5.1 mph
UV Index: 5.2

Astronomical

Sun
10h 48m daylight
Sunrise 6:46 AM
Solar Noon 12:10 PM
Sunset 5:34 PM
Moon
New • 0%
Moonrise 8:06 AM
Transit 1:14 PM
Moonset 6:20 PM

Best Times for Fishing or Hunting

Major Periods

12:18 AM - 2:48 AM
12:44 PM - 3:14 PM

Minor Periods

7:36 AM - 9:06 AM
5:50 PM - 7:20 PM
Action Rating:
Very Good 4/5
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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