Water Temperature of the Medina River in San Antonio, TX

Current Water Temperature

77.2°F

Measurement Time: Thursday, May 21, 2026, 8:15 PM CDT

Temperature Locations

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Medina River

Station Name: Medina Rv at San Antonio, TX
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 486 feet

Nearest Address:
16081 Pleasanton Rd
San Antonio, TX 78221
Bexar County

GPS Coordinates: 29.2641276, -98.4908493

Nearby Water Temperatures

Medina River, San Antonio, TX (5.5 mi)
San Antonio River, Elmendorf, TX (8.6 mi)
San Antonio River, Runge, TX (53.8 mi)
Jacob's Well Spring, Wimberley, TX (57.6 mi)
Frio River, Concan, TX (74.7 mi)
San Antonio River, Goliad, TX (79.2 mi)
Barton Springs, Austin, TX (81.4 mi)
Nueces River, San Patricio, TX (101.4 mi)
Nueces River, Odem, TX (108.1 mi)
Rincon Bayou Channel, Odem, TX (108.3 mi)
Viola Turning Basin, Corpus Christi, TX (114.3 mi)
Neuces Bay, Corpus Christi, TX (116.2 mi)
Corpus Christi Bay, Portland, TX (120.4 mi)
Corpus Christi Bay, Corpus Christi, TX (120.6 mi)
Lavaca Bay, Port Lavaca, TX (121.6 mi)

Weather for San Antonio, Texas

Current Weather

66.9°F
Clear
Clear
66.9°F
67.7°F
93%
ESE 2.5 mph
4.5 mph
67.6°F
64.8°F
0 in
0%
9 mi
1010 mbar
0

Five Day Weather Forecast

Moderate rain
Fri
H: 89°F
L: 67°F
Patchy rain nearby
Sat
H: 87°F
L: 66°F
Moderate rain
Sun
H: 87°F
L: 69°F
Moderate rain
Mon
H: 84°F
L: 68°F
Patchy rain nearby
Tue
H: 90°F
L: 70°F

Air Quality

PM2.5: 6.35 μg/m3
PM10: 7.25 μg/m3
Carbon Monoxide: 135.85 μg/m3
Nitrogen Dioxide: 6.95 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 37 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:30 PM
Sunset: 8:24 PM
Daylight: 13 hrs 45 mins
Moonrise: 12:40 AM
Moon Transit: 7:26 PM
Moonset: 1:31 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

5:21 AM - 7:51 AM
6:56 PM - 9:26 PM

Minor Periods

12:10 AM - 1:40 PM
1:01 AM - 2:31 AM

Action Rating: 2 out of 5

Flood Watch issued May 21 at 12:14PM CDT until May 25 at 7:00PM CDT by NWS Austin/San Antonio TX

Effective: Thu May 21, 2026, 12:14 PM
Expires: Sat May 23, 2026, 12:15 PM

* WHAT...Flooding and flash flooding caused by excessive rainfall is possible. * WHERE...A portion of south central Texas, including the following counties, Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet, Caldwell, Comal, De Witt, Fayette, Frio, Gillespie, Gonzales, Guadalupe, Hays, Karnes, Kendall, Kerr, Lavaca, Lee, Llano, Medina, Travis, Williamson and Wilson. * WHEN...From Friday evening through Monday evening. * IMPACTS...There is a potential for life threatening flooding somewhere in the watch area. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Showers and thunderstorms will be capable of producing high rainfall rates which could quickly lead to flooding across the area. Be especially cautious as creeks, streams, and rivers may rise out of their banks quickly. Rainfall amounts of 2 to 4 inches with isolated amounts up to 6 inches are possible for the duration of the Flood Watch. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Friday, May 22, 2026

Weather Forecast

Moderate rain
89.4°F
67.1°F
76.4°F
76%
0.41 in
87%
0%
13 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 7.92 μg/m3
PM10: 9.26 μg/m3
Carbon Monoxide: 139.01 μg/m3
Nitrogen Dioxide: 5.93 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 57.92 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:30 PM
Sunset: 8:24 PM
Daylight: 13 hrs 45 mins
Moonrise: 12:40 AM
Moon Transit: 7:26 PM
Moonset: 1:31 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

5:21 AM - 7:51 AM
6:56 PM - 9:26 PM

Minor Periods

12:10 AM - 1:40 PM
1:01 AM - 2:31 AM

Action Rating: 2 out of 5

Saturday, May 23, 2026

Weather Forecast

Patchy rain nearby
86.5°F
65.8°F
75.7°F
77%
0.18 in
88%
0%
15.2 mph
4.7


Air Quality

AQI: 1 - Good
PM2.5: 8.11 μg/m3
PM10: 9.59 μg/m3
Carbon Monoxide: 146.77 μg/m3
Nitrogen Dioxide: 5.71 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 56.64 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:30 PM
Sunset: 8:24 PM
Daylight: 13 hrs 46 mins
Moonrise: 1:41 PM
Moon Transit: 8:12 PM
Moonset: 2:06 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

6:10 AM - 8:40 AM
7:42 PM - 10:12 PM

Minor Periods

1:11 PM - 2:41 PM
1:36 AM - 3:06 AM

Action Rating: 3 out of 5

Sunday, May 24, 2026

Weather Forecast

Moderate rain
86.9°F
68.9°F
76.8°F
75%
0.41 in
89%
0%
8.9 mph
9.3


Air Quality

AQI: 1 - Good
PM2.5: 5.43 μg/m3
PM10: 6.22 μg/m3
Carbon Monoxide: 146.71 μg/m3
Nitrogen Dioxide: 4.37 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 63.6 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:30 PM
Sunset: 8:25 PM
Daylight: 13 hrs 47 mins
Moonrise: 2:40 PM
Moon Transit: 8:56 PM
Moonset: 2:37 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

6:54 AM - 9:24 AM
8:26 PM - 10:56 PM

Minor Periods

2:10 PM - 3:40 PM
2:07 AM - 3:37 AM

Action Rating: 4 out of 5

Monday, May 25, 2026

Weather Forecast

Moderate rain
84.4°F
68.3°F
74.6°F
79%
0.48 in
89%
0%
8.7 mph
9.8


Air Quality

AQI: 1 - Good
PM2.5: 6.63 μg/m3
PM10: 6.83 μg/m3
Carbon Monoxide: 174.43 μg/m3
Nitrogen Dioxide: 10.1 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 45.38 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:30 PM
Sunset: 8:25 PM
Daylight: 13 hrs 48 mins
Moonrise: 3:36 PM
Moon Transit: 9:38 PM
Moonset: 3:05 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

7:37 AM - 10:07 AM
9:08 PM - 11:38 PM

Minor Periods

3:06 PM - 4:36 PM
2:35 AM - 4:05 AM

Action Rating: 2 out of 5

Tuesday, May 26, 2026

Weather Forecast

Patchy rain nearby
90.4°F
69.5°F
76.3°F
77%
0.01 in
77%
0%
8.9 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: 6:37 AM
Sun Transit: 1:31 PM
Sunset: 8:26 PM
Daylight: 13 hrs 49 mins
Moonrise: 4:32 PM
Moon Transit: 10:19 PM
Moonset: 3:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

8:19 AM - 10:49 AM
12:00 AM - 12:00 AM

Minor Periods

4:02 PM - 5:32 PM
3:03 AM - 4:33 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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