Water Temperature of the San Antonio River in Elmendorf, TX

Current Water Temperature

86.5°F

Measurement Time: Wednesday, September 16, 2026, 11:30 PM CDT

Temperature Locations

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Local Points of Interest

River Crossing Park; Graytown, TX

San Antonio River

Station Name: San Antonio Rv nr Elmendorf, TX
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 423 feet

Nearest Address:
6900 State Loop 1604
Elmendorf, TX 78112
Bexar County

GPS Coordinates: 29.2221853, -98.3558463

Nearby Water Temperatures

Medina River, San Antonio, TX (8.6 mi)
Medina River, San Antonio, TX (13.9 mi)
San Antonio River, Runge, TX (45.4 mi)
Jacob's Well Spring, Wimberley, TX (57.8 mi)
San Antonio River, Goliad, TX (70.8 mi)
Barton Springs, Austin, TX (80 mi)
Frio River, Concan, TX (83.3 mi)
Nueces River, San Patricio, TX (95.5 mi)
Nueces River, Odem, TX (101.7 mi)
Rincon Bayou Channel, Odem, TX (101.9 mi)
Viola Turning Basin, Corpus Christi, TX (107.7 mi)
Neuces Bay, Corpus Christi, TX (109.6 mi)
Lavaca Bay, Port Lavaca, TX (113 mi)
Corpus Christi Bay, Portland, TX (113.2 mi)
Corpus Christi Bay, Corpus Christi, TX (113.7 mi)

Weather for Elmendorf, Texas

Current Weather

77°F

Conditions: Mostly Cloudy

Humidity: 90%

Wind: 0 mph

Dew Point: 74°F

Weather Forecast

Overnight
75°F - Mostly Cloudy

Thursday
98°F - Partly Sunny then Slight Chance Showers And Thunderstorms

Thursday Night
74°F - Slight Chance Showers And Thunderstorms then Mostly Cloudy

Friday
99°F - Mostly Sunny

Friday Night
72°F - Mostly Clear

Saturday
98°F - Sunny

Saturday Night
73°F - Mostly Clear

Sunday
98°F - Mostly Sunny

Sunday Night
74°F - Partly Cloudy

Monday
98°F - Mostly Sunny then Slight Chance Showers And Thunderstorms

Monday Night
74°F - Slight Chance Showers And Thunderstorms then Mostly Clear

Tuesday
98°F - Mostly Sunny

Tuesday Night
74°F - Partly Cloudy then Slight Chance Rain Showers

Wednesday
98°F - Slight Chance Rain Showers then Mostly Sunny

Astronomical

Sunrise: 7:19 AM
Sun Transit: 1:27 PM
Sunset: 7:36 PM
Daylight: 12 hrs 17 mins

Moonrise: 1:38 PM
Moon Transit: 6:40 PM
Moonset: 11:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

4:35 AM - 7:05 AM
6:10 PM - 8:40 PM

Minor Periods

12:00 AM - 12:00 AM
1:08 PM - 2:38 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:19 AM
Sun Transit: 1:27 PM
Sunset: 7:36 PM
Daylight: 12 hrs 17 mins

Moonrise: 1:38 PM
Moon Transit: 6:40 PM
Moonset: 11:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

4:35 AM - 7:05 AM
6:10 PM - 8:40 PM

Minor Periods

12:00 AM - 12:00 AM
1:08 PM - 2:38 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:19 AM
Sun Transit: 1:27 PM
Sunset: 7:36 PM
Daylight: 12 hrs 17 mins

Moonrise: 1:38 PM
Moon Transit: 6:40 PM
Moonset: 11:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

4:35 AM - 7:05 AM
6:10 PM - 8:40 PM

Minor Periods

12:00 AM - 12:00 AM
1:08 PM - 2:38 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:19 AM
Sun Transit: 1:27 PM
Sunset: 7:36 PM
Daylight: 12 hrs 17 mins

Moonrise: 1:38 PM
Moon Transit: 6:40 PM
Moonset: 11:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

4:35 AM - 7:05 AM
6:10 PM - 8:40 PM

Minor Periods

12:00 AM - 12:00 AM
1:08 PM - 2:38 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:20 AM
Sun Transit: 1:27 PM
Sunset: 7:34 PM
Daylight: 12 hrs 15 mins

Moonrise: 2:32 PM
Moon Transit: 7:31 PM
Moonset: 12:41 AM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

5:26 AM - 7:56 AM
7:01 PM - 9:31 PM

Minor Periods

2:02 PM - 3:32 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:20 AM
Sun Transit: 1:27 PM
Sunset: 7:34 PM
Daylight: 12 hrs 15 mins

Moonrise: 2:32 PM
Moon Transit: 7:31 PM
Moonset: 12:41 AM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

5:26 AM - 7:56 AM
7:01 PM - 9:31 PM

Minor Periods

2:02 PM - 3:32 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:20 AM
Sun Transit: 1:27 PM
Sunset: 7:33 PM
Daylight: 12 hrs 13 mins

Moonrise: 3:20 PM
Moon Transit: 8:23 PM
Moonset: 12:33 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

6:18 AM - 8:48 AM
7:53 PM - 10:23 PM

Minor Periods

2:50 PM - 4:20 PM
12:03 AM - 1:33 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:20 AM
Sun Transit: 1:27 PM
Sunset: 7:33 PM
Daylight: 12 hrs 13 mins

Moonrise: 3:20 PM
Moon Transit: 8:23 PM
Moonset: 12:33 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

6:18 AM - 8:48 AM
7:53 PM - 10:23 PM

Minor Periods

2:50 PM - 4:20 PM
12:03 AM - 1:33 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:21 AM
Sun Transit: 1:26 PM
Sunset: 7:32 PM
Daylight: 12 hrs 11 mins

Moonrise: 4:05 PM
Moon Transit: 9:12 PM
Moonset: 1:27 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
8:42 PM - 11:12 PM

Minor Periods

3:35 PM - 5:05 PM
12:57 AM - 2:27 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:21 AM
Sun Transit: 1:26 PM
Sunset: 7:32 PM
Daylight: 12 hrs 11 mins

Moonrise: 4:05 PM
Moon Transit: 9:12 PM
Moonset: 1:27 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
8:42 PM - 11:12 PM

Minor Periods

3:35 PM - 5:05 PM
12:57 AM - 2:27 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:21 AM
Sun Transit: 1:26 PM
Sunset: 7:31 PM
Daylight: 12 hrs 10 mins

Moonrise: 4:44 PM
Moon Transit: 10:00 PM
Moonset: 2:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

7:58 AM - 10:28 AM
9:30 PM - 12:00 PM

Minor Periods

4:14 PM - 5:44 PM
1:55 AM - 3:25 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:21 AM
Sun Transit: 1:26 PM
Sunset: 7:31 PM
Daylight: 12 hrs 10 mins

Moonrise: 4:44 PM
Moon Transit: 10:00 PM
Moonset: 2:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

7:58 AM - 10:28 AM
9:30 PM - 12:00 PM

Minor Periods

4:14 PM - 5:44 PM
1:55 AM - 3:25 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:22 AM
Sun Transit: 1:26 PM
Sunset: 7:30 PM
Daylight: 12 hrs 8 mins

Moonrise: 5:18 PM
Moon Transit: 10:47 PM
Moonset: 3:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

8:45 AM - 11:15 AM
12:00 AM - 12:00 AM

Minor Periods

4:48 PM - 6:18 PM
2:52 AM - 4:22 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:22 AM
Sun Transit: 1:26 PM
Sunset: 7:30 PM
Daylight: 12 hrs 8 mins

Moonrise: 5:18 PM
Moon Transit: 10:47 PM
Moonset: 3:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

8:45 AM - 11:15 AM
12:00 AM - 12:00 AM

Minor Periods

4:48 PM - 6:18 PM
2:52 AM - 4:22 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:22 AM
Sun Transit: 1:25 PM
Sunset: 7:28 PM
Daylight: 12 hrs 6 mins

Moonrise: 5:51 PM
Moon Transit: 11:31 PM
Moonset: 4:21 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

9:30 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

5:21 PM - 6:51 PM
3:51 AM - 5:21 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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