Water Temperature of the Chattahoochee River in Alpharetta, GA

Current Water Temperature

55.8°F

Measurement Time: Wednesday, July 23, 2025, 12:00 AM EDT

Temperature Locations

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Local Points of Interest

Garrard Landing Park; Atlanta, GA

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Chattahoochee River

Station Name: CHATTAHOOCHEE R 0.39 MI DS GA140, ALPHARETTA, GA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 892 feet / 272 meters

Nearest Address:
Garrard Landing Park
Alpharetta, GA 30022
Fulton County

GPS Coordinates: 33.97305556, -84.26888889

Nearby Water Temperatures

Peachtree Creek, Brookhaven, GA (10.7 mi)
Chattahoochee River, Suwanee, GA (10.8 mi)
Suwanee Creek, Suwanee, GA (11.1 mi)
Level Creek, Suwanee, GA (13.9 mi)
Richland Creek, Sugar Hill, GA (15.8 mi)
Pole Bridge Creek, Lithonia, GA (22.1 mi)
Etowah River, Cartersville, GA (30.0 mi)
Chattahoochee River, Helen, GA (59.0 mi)
Falling Creek, Juliette, GA (68.0 mi)
Hiwassee River , Reliance, TN (85.0 mi)
Richard B. Russell Lake, Calhoun Falls, SC (94.9 mi)
Cheoah River, Tapoco, NC (103.2 mi)
Lake Strom Thurmond, McCormick, SC (110.7 mi)
Saluda River, Williamston, SC (113.2 mi)
Oconaluftee River, Birdtown, NC (115.2 mi)

Weather for Alpharetta, Georgia

Current Weather

75°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 94%
Feels Like: 78.7°F
Wind: ENE 6.7 mph
Wind Gusts: 9 mph
Pressure: 30.04 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 8 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Wed
H: 95°F
L: 78°F
Moderate rain
Thu
H: 92°F
L: 78°F
Partly Cloudy
Fri
H: 95°F
L: 77°F
Sunny
Sat
H: 98°F
L: 75°F
Sunny
Sun
H: 98°F
L: 79°F

Air Quality

PM2.5: 21.46 μg/m3
PM10: 21.65 μg/m3
Carbon Monoxide: 366.3 μg/m3
Nitrogen Dioxide: 9.44 μg/m3
Sulphur Dioxide: 3.89 μg/m3
Ozone: 95 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 1:43 PM
Sunset: 8:45 PM
Daylight: 14 hrs 2 mins
Moonrise: 5:05 AM
Moon Transit: 12:45 AM
Moonset: 8:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:32 AM - 3:02 AM
12:15 AM - 2:45 PM

Minor Periods

7:50 PM - 9:20 PM
4:35 AM - 6:05 AM

Action Rating: 2 out of 5

Flash Flood Warning issued July 23 at 1:08AM EDT until July 23 at 3:15AM EDT by NWS Peachtree City GA

Effective: Wed July 23, 2025, 1:08 AM
Expires: Wed July 23, 2025, 3:15 AM

FFWFFC The National Weather Service in Peachtree City has issued a * Flash Flood Warning for... Gwinnett County in north central Georgia... * Until 315 AM EDT. * At 108 AM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Lawrenceville, Peachtree Corners, Duluth, Sugar Hill, Snellville, Suwanee, Buford, Lilburn, Norcross, Dacula, Grayson, Rest Haven, Mountain Park and Hog Mountain.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Be aware of your surroundings and do not drive on flooded roads.
Wednesday, July 23, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 84°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 2.3

Air Quality

AQI: 2 - Moderate
PM2.5: 22.03 μg/m3
PM10: 22.49 μg/m3
Carbon Monoxide: 371.55 μg/m3
Nitrogen Dioxide: 12.54 μg/m3
Sulphur Dioxide: 3.65 μg/m3
Ozone: 107.2 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 1:43 PM
Sunset: 8:45 PM
Daylight: 14 hrs 2 mins
Moonrise: 5:05 AM
Moon Transit: 12:45 AM
Moonset: 8:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:32 AM - 3:02 AM
12:15 AM - 2:45 PM

Minor Periods

7:50 PM - 9:20 PM
4:35 AM - 6:05 AM

Action Rating: 2 out of 5

Thursday, July 24, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 82.4°F
Average Humidity: 67%
Chance of Rain: 84%
Wind: 11 mph
UV Index: 2.3

Air Quality

AQI: 2 - Moderate
PM2.5: 17.46 μg/m3
PM10: 18.13 μg/m3
Carbon Monoxide: 400.12 μg/m3
Nitrogen Dioxide: 12.12 μg/m3
Sulphur Dioxide: 4.54 μg/m3
Ozone: 99.8 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 1:43 PM
Sunset: 8:44 PM
Daylight: 14 hrs 1 mins
Moonrise: 6:16 AM
Moon Transit: 1:44 PM
Moonset: 9:04 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

1:33 AM - 4:03 AM
1:14 PM - 3:44 PM

Minor Periods

8:34 PM - 10:04 PM
5:46 AM - 7:16 AM

Action Rating: 4 out of 5

Friday, July 25, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 84.4°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 8.1 mph
UV Index: 2.4

Air Quality

AQI: 1 - Good
PM2.5: 11.38 μg/m3
PM10: 11.71 μg/m3
Carbon Monoxide: 319.31 μg/m3
Nitrogen Dioxide: 12.75 μg/m3
Sulphur Dioxide: 4.65 μg/m3
Ozone: 82.28 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 1:43 PM
Sunset: 8:43 PM
Daylight: 13 hrs 59 mins
Moonrise: 7:25 AM
Moon Transit: 2:37 PM
Moonset: 9:40 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

2:28 AM - 4:58 AM
2:07 PM - 4:37 PM

Minor Periods

9:10 PM - 10:40 PM
6:55 AM - 8:25 AM

Action Rating: 5 out of 5

Saturday, July 26, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 86.1°F
Average Humidity: 54%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 2.8

Air Quality

AQI: 2 - Moderate
PM2.5: 16.52 μg/m3
PM10: 17.6 μg/m3
Carbon Monoxide: 370 μg/m3
Nitrogen Dioxide: 29.6 μg/m3
Sulphur Dioxide: 5.46 μg/m3
Ozone: 48.92 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:43 PM
Sunset: 8:43 PM
Daylight: 13 hrs 58 mins
Moonrise: 8:32 AM
Moon Transit: 3:25 PM
Moonset: 10:10 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

3:19 AM - 5:49 AM
2:55 PM - 5:25 PM

Minor Periods

9:40 PM - 11:10 PM
8:02 AM - 9:32 AM

Action Rating: 3 out of 5

Sunday, July 27, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 86.4°F
Average Humidity: 53%
Chance of Rain: 0%
Wind: 13.4 mph
UV Index: 0.1

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: 6:46 AM
Sun Transit: 1:43 PM
Sunset: 8:42 PM
Daylight: 13 hrs 56 mins
Moonrise: 9:35 AM
Moon Transit: 4:10 PM
Moonset: 10:37 PM
Moon Phase: New
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

4:05 AM - 6:35 AM
3:40 PM - 6:10 PM

Minor Periods

10:07 PM - 11:37 PM
9:05 AM - 10:35 AM

Action Rating: 4 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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