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

67.4°F
Clear
Conditions: Clear
Humidity: 84%
Feels Like: 69.8°F
Wind: NNW 3.4 mph
Wind Gusts: 13.4 mph
Pressure: 29.91 in
Precipitation: 0 in
Cloud Cover: 9%
Visibility: 6 mi
UV Index: 0

Weather Forecast

Sunny
Sat
H: 82°F
L: 64°F
Sunny
Sun
H: 83°F
L: 62°F
Overcast
Mon
H: 81°F
L: 65°F

Air Quality

EPA Index 1 • Good

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

PM2.5
3.7 μg/m³
Good
PM10
3.8 μg/m³
Good
Ozone (O3)
40 μg/m³
Photochemical
NO2
5.4 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
148 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 52m daylight
Sunrise 6:44 AM
Solar Noon 12:09 PM
Sunset 5:36 PM
Moon
Waning Crescent • 1%
Moonrise 5:10 AM
Transit 10:50 AM
Moonset 4:24 PM

Best Times for Fishing or Hunting

Major Periods

10:20 AM - 12:50 PM
10:42 PM - 1:12 AM

Minor Periods

4:40 AM - 6:10 AM
3:54 PM - 5:24 PM
Action Rating:
Good Action 3/5

Flood Warning issued November 6 at 8:18PM EST by NWS Melbourne FL

Effective: Fri November 6, 2026, 8:18 PM
Expires: Sat November 7, 2026, 11:30 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 3.5 feet, Canals have overflowed into yards. Homes on or near Wildhog and Bonnet roads become inaccessible with several inches of water inside homes along the river and canals. Docks at Astor Bridge marina and throughout Astor are completely submerged. Bartram Rd and Holiday Circle are inaccessible with yards completely submerged. Clair Street is inaccessible. Roads flooded in South Moon Fish Camp, docks and yards at condominiums on Juno Trail and water breaches the sea wall at Blair's Jungle Den. * ADDITIONAL DETAILS... - At 7:30 PM EST Friday the stage was 3.1 feet. - Bankfull stage is 2.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 PM EST Friday was 3.2 feet. - Forecast...The river is expected to remain steady above flood stage at 3.1 feet. - Flood stage is 2.3 feet. - http://www.weather.gov/safety/flood


Flood Warning issued November 6 at 8:20PM EST by NWS Melbourne FL

Effective: Fri November 6, 2026, 8:20 PM
Expires: Sat November 7, 2026, 11:30 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 remain very 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 7:30 PM EST Friday the stage was 3.9 feet. - Bankfull stage is 3.5 feet. - Forecast...The river is expected to rise above flood stage tomorrow morning and continue rising to 4.5 feet early Wednesday afternoon. Additional rises are possible thereafter. - Flood stage is 4.0 feet. - http://www.weather.gov/safety/flood


Saturday, November 7, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 71.8°F
Average Humidity: 66%
Chance of Rain: 5%
Wind: 5.6 mph
UV Index: 5.5

Astronomical

Sun
10h 52m daylight
Sunrise 6:44 AM
Solar Noon 12:09 PM
Sunset 5:36 PM
Moon
Waning Crescent • 1%
Moonrise 5:10 AM
Transit 10:50 AM
Moonset 4:24 PM

Best Times for Fishing or Hunting

Major Periods

10:20 AM - 12:50 PM
10:42 PM - 1:12 AM

Minor Periods

4:40 AM - 6:10 AM
3:54 PM - 5:24 PM
Action Rating:
Good Action 3/5
Sunday, November 8, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 70.8°F
Average Humidity: 71%
Chance of Rain: 17%
Wind: 6.9 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: Overcast
Average Temperature: 71.2°F
Average Humidity: 75%
Chance of Rain: 26%
Wind: 8.1 mph
UV Index: 6

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
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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