Water Temperature of the Medina River in San Antonio, TX

Current Water Temperature

57.6°F

Measurement Time: Saturday, December 20, 2025, 7:45 PM CST

Temperature Locations

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Local Points of Interest

Medina River Natural Area

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Medina River

Station Name: Medina Rv nr Somerset, TX
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 528 feet / 161 meters

Nearest Address:
Palo Alto Rd
San Antonio, TX 78264
Bexar County

GPS Coordinates: 29.26218286, -98.5814074

Nearby Water Temperatures

Medina River, San Antonio, TX (5.5 mi)
San Antonio River, Elmendorf, TX (13.9 mi)
San Antonio River, Runge, TX (58.4 mi)
Jacob's Well Spring, Wimberley, TX (60.0 mi)
Frio River, Concan, TX (69.4 mi)
San Antonio River, Goliad, TX (83.8 mi)
Barton Springs, Austin, TX (84.5 mi)
Nueces River, San Patricio, TX (103.7 mi)
Nueces River, Odem, TX (110.7 mi)
Rincon Bayou Channel, Odem, TX (111.0 mi)
Viola Turning Basin, Corpus Christi, TX (117.1 mi)
Neuces Bay, Corpus Christi, TX (119.1 mi)
Corpus Christi Bay, Corpus Christi, TX (123.6 mi)
Corpus Christi Bay, Portland, TX (123.7 mi)
Aransas Bay, Rockport, TX (126.5 mi)

Weather for San Antonio, Texas

Current Weather

57°F
Mist
Conditions: Mist
Humidity: 96%
Feels Like: 56.6°F
Wind: SW 4.7 mph
Wind Gusts: 9.9 mph
Pressure: 29.98 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 1 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Sun
H: 62°F
L: 50°F
Overcast
Mon
H: 63°F
L: 55°F
Fog
Tue
H: 78°F
L: 63°F
Patchy rain nearby
Wed
H: 79°F
L: 63°F
Fog
Thu
H: 80°F
L: 64°F

Air Quality

PM2.5: 16.75 μg/m3
PM10: 17.25 μg/m3
Carbon Monoxide: 314.85 μg/m3
Nitrogen Dioxide: 27.05 μg/m3
Sulphur Dioxide: 3.65 μg/m3
Ozone: 32 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:32 AM
Sunset: 5:41 PM
Daylight: 10 hrs 16 mins
Moonrise: 8:55 AM
Moon Transit: 2:00 PM
Moonset: 7:08 PM
Moon Phase: New
Moon Illumination: 1.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:30 PM - 4:00 PM

Minor Periods

6:38 PM - 8:08 PM
8:25 AM - 9:55 AM

Action Rating: 3 out of 5

Dense Fog Advisory issued December 20 at 9:54PM CST until December 21 at 9:00AM CST by NWS Austin/San Antonio TX

Effective: Sat December 20, 2025, 9:54 PM
Expires: Sun December 21, 2025, 9:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Atascosa, De Witt, Fayette, Gonzales, Karnes, Lavaca, and Wilson Counties. * WHEN...Until 9 AM CST Sunday. * IMPACTS...Hazardous driving conditions due to low visibility.

If driving, slow down, use your low beam headlights, and leave plenty of distance ahead of you.


Dense Fog Advisory issued December 20 at 9:54PM CST until December 21 at 6:00AM CST by NWS Austin/San Antonio TX

Effective: Sat December 20, 2025, 9:54 PM
Expires: Sun December 21, 2025, 6:00 AM

* WHAT...Visibility less than one mile in dense fog. * WHERE...Bastrop, Caldwell, and Guadalupe Counties. * WHEN...Until 6 AM CST Sunday. * IMPACTS...Hazardous driving conditions due to low visibility.

If driving, slow down, use your low beam headlights, and leave plenty of distance ahead of you.
Sunday, December 21, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 56.5°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 11.2 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 12.25 μg/m3
PM10: 12.75 μg/m3
Carbon Monoxide: 306.53 μg/m3
Nitrogen Dioxide: 23.67 μg/m3
Sulphur Dioxide: 4.09 μg/m3
Ozone: 53.24 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:32 AM
Sunset: 5:41 PM
Daylight: 10 hrs 16 mins
Moonrise: 8:55 AM
Moon Transit: 2:00 PM
Moonset: 7:08 PM
Moon Phase: New
Moon Illumination: 1.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:30 PM - 4:00 PM

Minor Periods

6:38 PM - 8:08 PM
8:25 AM - 9:55 AM

Action Rating: 3 out of 5

Monday, December 22, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 58.8°F
Average Humidity: 88%
Chance of Rain: 0%
Wind: 13 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 10.04 μg/m3
PM10: 10.41 μg/m3
Carbon Monoxide: 260.29 μg/m3
Nitrogen Dioxide: 18.44 μg/m3
Sulphur Dioxide: 2.91 μg/m3
Ozone: 42.64 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:33 AM
Sunset: 5:41 PM
Daylight: 10 hrs 16 mins
Moonrise: 9:37 AM
Moon Transit: 2:50 PM
Moonset: 8:08 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.5%

Best Times for Fishing or Hunting

Major Periods

12:44 AM - 3:14 AM
2:20 PM - 4:50 PM

Minor Periods

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

Action Rating: 2 out of 5

Tuesday, December 23, 2025

Weather Forecast

Conditions: Fog
Average Temperature: 69°F
Average Humidity: 88%
Chance of Rain: 0%
Wind: 12.8 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 7.49 μg/m3
PM10: 8.4 μg/m3
Carbon Monoxide: 170.53 μg/m3
Nitrogen Dioxide: 10.71 μg/m3
Sulphur Dioxide: 1.83 μg/m3
Ozone: 52.2 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:33 AM
Sunset: 5:42 PM
Daylight: 10 hrs 16 mins
Moonrise: 10:14 AM
Moon Transit: 3:38 PM
Moonset: 9:08 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%

Best Times for Fishing or Hunting

Major Periods

1:33 AM - 4:03 AM
3:08 PM - 5:38 PM

Minor Periods

8:38 PM - 10:08 PM
9:44 AM - 11:14 AM

Action Rating: 3 out of 5

Wednesday, December 24, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 68.3°F
Average Humidity: 83%
Chance of Rain: 82%
Wind: 12.1 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 8.11 μg/m3
PM10: 9.42 μg/m3
Carbon Monoxide: 171.87 μg/m3
Nitrogen Dioxide: 11.49 μg/m3
Sulphur Dioxide: 1.96 μg/m3
Ozone: 58.69 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:34 AM
Sunset: 5:42 PM
Daylight: 10 hrs 17 mins
Moonrise: 10:47 AM
Moon Transit: 4:23 PM
Moonset: 10:07 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.9%

Best Times for Fishing or Hunting

Major Periods

2:20 AM - 4:50 AM
3:53 PM - 6:23 PM

Minor Periods

9:37 PM - 11:07 PM
10:17 AM - 11:47 AM

Action Rating: 2 out of 5

Thursday, December 25, 2025

Weather Forecast

Conditions: Fog
Average Temperature: 68.3°F
Average Humidity: 85%
Chance of Rain: 0%
Wind: 9.8 mph
UV Index: 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: 7:26 AM
Sun Transit: 12:34 AM
Sunset: 5:43 PM
Daylight: 10 hrs 17 mins
Moonrise: 11:18 AM
Moon Transit: 5:08 PM
Moonset: 11:06 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.7%

Best Times for Fishing or Hunting

Major Periods

3:05 AM - 5:35 AM
4:38 PM - 7:08 PM

Minor Periods

12:00 AM - 12:00 AM
10:48 AM - 12:18 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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