Water Temperature of the Chattahoochee River in Alpharetta, GA

Current Water Temperature

49.6°F

Measurement Time: Saturday, January 17, 2026, 4:00 PM EST

Temperature Locations

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Local Points of Interest

Garrard Landing Park; Atlanta, GA

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

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 mi)
Chattahoochee River, Helen, GA (59 mi)
Falling Creek, Juliette, GA (68 mi)
Hiwassee River , Reliance, TN (85 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

47.5°F
Partly cloudy
Partly cloudy
44.2°F
41.6°F
47%
NW 6.9 mph
9.6 mph
37°F
22.2°F
0 in
50%
9 mi
1019 mbar
0

Five Day Weather Forecast

Overcast
Sat
H: 43°F
L: 39°F
Moderate or heavy snow showers
Sun
H: 34°F
L: 27°F
Sunny
Mon
H: 42°F
L: 26°F
Sunny
Tue
H: 39°F
L: 27°F
Partly Cloudy
Wed
H: 40°F
L: 25°F

Air Quality

PM2.5: 19.45 μg/m3
PM10: 20.05 μg/m3
Carbon Monoxide: 357.85 μg/m3
Nitrogen Dioxide: 47.55 μg/m3
Sulphur Dioxide: 6.45 μg/m3
Ozone: 16 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:47 AM
Sunset: 5:53 PM
Daylight: 10 hrs 12 mins
Moonrise: 7:07 AM
Moon Transit: 11:54 AM
Moonset: 4:47 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:24 AM - 1:54 PM

Minor Periods

4:17 PM - 5:47 PM
6:37 AM - 8:07 AM

Action Rating: 5 out of 5

Winter Weather Advisory issued January 17 at 1:23PM EST until January 18 at 1:00PM EST by NWS Peachtree City GA

Effective: Sat January 17, 2026, 1:23 PM
Expires: Sun January 18, 2026, 3:00 AM

* WHAT...Snow expected. Total snow accumulations up to one inch. * WHERE...Portions of central, east central, north central, and west central Georgia. * WHEN...From 3 AM to 1 PM EST Sunday. * IMPACTS...Plan on slippery road conditions.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
Saturday, January 17, 2026

Weather Forecast

Overcast
43°F
38.8°F
41.3°F
75%
0 in
0%
0%
12.3 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 6.46 μg/m3
PM10: 6.67 μg/m3
Carbon Monoxide: 201.23 μg/m3
Nitrogen Dioxide: 12.83 μg/m3
Sulphur Dioxide: 4.22 μg/m3
Ozone: 62.36 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:47 AM
Sunset: 5:53 PM
Daylight: 10 hrs 12 mins
Moonrise: 7:07 AM
Moon Transit: 11:54 AM
Moonset: 4:47 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:24 AM - 1:54 PM

Minor Periods

4:17 PM - 5:47 PM
6:37 AM - 8:07 AM

Action Rating: 5 out of 5

Sunday, January 18, 2026

Weather Forecast

Moderate or heavy snow showers
33.8°F
26.8°F
30.7°F
67%
0.24 in
82%
20%
13.4 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 17.56 μg/m3
PM10: 18.2 μg/m3
Carbon Monoxide: 330.37 μg/m3
Nitrogen Dioxide: 43.35 μg/m3
Sulphur Dioxide: 6.52 μg/m3
Ozone: 21.23 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 12:47 AM
Sunset: 5:54 PM
Daylight: 10 hrs 13 mins
Moonrise: 7:49 AM
Moon Transit: 12:46 AM
Moonset: 5:48 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
12:16 AM - 2:46 PM

Minor Periods

5:18 PM - 6:48 PM
7:19 AM - 8:49 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Sunny
42.3°F
26°F
30.2°F
48%
0 in
0%
0%
11.4 mph
0


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: 7:41 AM
Sun Transit: 12:47 AM
Sunset: 5:55 PM
Daylight: 10 hrs 14 mins
Moonrise: 8:26 AM
Moon Transit: 1:35 PM
Moonset: 6:52 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

1:28 AM - 3:58 AM
1:05 PM - 3:35 PM

Minor Periods

6:22 PM - 7:52 PM
7:56 AM - 9:26 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Sunny
38.8°F
27.4°F
31.9°F
33%
0 in
0%
0%
15.4 mph
2


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: 7:40 AM
Sun Transit: 12:48 AM
Sunset: 5:56 PM
Daylight: 10 hrs 15 mins
Moonrise: 8:58 AM
Moon Transit: 2:22 PM
Moonset: 7:55 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

2:16 AM - 4:46 AM
1:52 PM - 4:22 PM

Minor Periods

7:25 PM - 8:55 PM
8:28 AM - 9:58 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Partly Cloudy
39.5°F
24.9°F
31°F
26%
0 in
0%
0%
9.6 mph
2


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: 7:40 AM
Sun Transit: 12:48 AM
Sunset: 5:57 PM
Daylight: 10 hrs 17 mins
Moonrise: 9:27 AM
Moon Transit: 3:08 PM
Moonset: 8:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

3:03 AM - 5:33 AM
2:38 PM - 5:08 PM

Minor Periods

8:28 PM - 9:58 PM
8:57 AM - 10:27 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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