Water Temperature of the Medina River in San Antonio, TX

Current Water Temperature

66.2°F 19.0°C
Cool Brisk & Refreshing
66.2°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Feels brisk on entry. Great for short dips; wetsuit recommended for extended swimming or water sports.

Measurement Time: Friday, November 13, 2026, 8:45 AM 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

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 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 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

78.3°F
Overcast
Conditions: Overcast
Humidity: 30%
Feels Like: 74.5°F
Wind: S 5.6 mph
Wind Gusts: 6 mph
Pressure: 29.9 in
Precipitation: 0 in
Cloud Cover: 94%
Visibility: 41.1 mi
UV Index: 2.9

Five-Day Weather Forecast

Overcast
Fri
H: 79°F
L: 47°F
Overcast
Sat
H: 73°F
L: 52°F
Heavy Rain
Sun
H: 68°F
L: 53°F
Overcast
Mon
H: 61°F
L: 53°F
Overcast
Tue
H: 68°F
L: 53°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
2.1 μg/m³
Good
PM10
2.2 μg/m³
Good
Ozone (O3)
101 μg/m³
Photochemical
NO2
1.6 μg/m³
Nitrogen Dioxide
SO2
1.4 μg/m³
Sulfur Dioxide
CO
126 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 43m daylight
Sunrise 6:57 AM
Solar Noon 12:18 PM
Sunset 5:40 PM
Moon
Waxing Crescent • 13%
Moonrise 10:54 AM
Transit 3:58 PM
Moonset 9:05 PM

Best Times for Fishing or Hunting

Major Periods

3:03 AM - 5:33 AM
3:28 PM - 5:58 PM

Minor Periods

10:24 AM - 11:54 AM
8:35 PM - 10:05 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 61.9°F
Average Humidity: 65%
Chance of Rain: 0%
Wind: 6.3 mph
UV Index: 5.2

Air Quality

EPA Index 2 • Moderate
PM2.5
7.3 μg/m³
Good
PM10
7.4 μg/m³
Good
Ozone (O3)
56.2 μg/m³
Photochemical
NO2
13.8 μg/m³
Nitrogen Dioxide
SO2
1.3 μg/m³
Sulfur Dioxide
CO
170.9 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 43m daylight
Sunrise 6:57 AM
Solar Noon 12:18 PM
Sunset 5:40 PM
Moon
Waxing Crescent • 13%
Moonrise 10:54 AM
Transit 3:58 PM
Moonset 9:05 PM

Best Times for Fishing or Hunting

Major Periods

3:03 AM - 5:33 AM
3:28 PM - 5:58 PM

Minor Periods

10:24 AM - 11:54 AM
8:35 PM - 10:05 PM
Action Rating:
Good Action 3/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 61.9°F
Average Humidity: 81%
Chance of Rain: 45%
Wind: 15.9 mph
UV Index: 5

Air Quality

EPA Index 1 • Good
PM2.5
8.2 μg/m³
Good
PM10
10.3 μg/m³
Good
Ozone (O3)
67.6 μg/m³
Photochemical
NO2
5.2 μg/m³
Nitrogen Dioxide
SO2
1.4 μg/m³
Sulfur Dioxide
CO
135.6 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 42m daylight
Sunrise 6:57 AM
Solar Noon 12:18 PM
Sunset 5:40 PM
Moon
Waxing Crescent • 21%
Moonrise 11:36 AM
Transit 4:46 PM
Moonset 10:01 PM

Best Times for Fishing or Hunting

Major Periods

3:52 AM - 6:22 AM
4:16 PM - 6:46 PM

Minor Periods

11:06 AM - 12:36 PM
9:31 PM - 11:01 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Heavy Rain
Average Temperature: 62.6°F
Average Humidity: 93%
Chance of Rain: 69%
Wind: 15.6 mph
UV Index: 1.9

Air Quality

EPA Index 1 • Good
PM2.5
6.1 μg/m³
Good
PM10
7.7 μg/m³
Good
Ozone (O3)
60.2 μg/m³
Photochemical
NO2
5.5 μg/m³
Nitrogen Dioxide
SO2
1.2 μg/m³
Sulfur Dioxide
CO
133.1 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 41m daylight
Sunrise 6:58 AM
Solar Noon 12:18 PM
Sunset 5:39 PM
Moon
Waxing Crescent • 31%
Moonrise 12:14 PM
Transit 5:33 PM
Moonset 10:58 PM

Best Times for Fishing or Hunting

Major Periods

4:40 AM - 7:10 AM
5:03 PM - 7:33 PM

Minor Periods

11:44 AM - 1:14 PM
10:28 PM - 11:58 PM
Action Rating:
Good Action 3/5
Monday, November 16, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 55.9°F
Average Humidity: 80%
Chance of Rain: 7%
Wind: 14.3 mph
UV Index: 3.6

Air Quality

EPA Index 1 • Good
PM2.5
2.8 μg/m³
Good
PM10
3 μg/m³
Good
Ozone (O3)
57.4 μg/m³
Photochemical
NO2
4.6 μg/m³
Nitrogen Dioxide
SO2
1.5 μg/m³
Sulfur Dioxide
CO
141.7 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 40m daylight
Sunrise 6:59 AM
Solar Noon 12:19 PM
Sunset 5:39 PM
Moon
First Quarter • 42%
Moonrise 12:47 PM
Transit 6:17 PM
Moonset 11:54 PM

Best Times for Fishing or Hunting

Major Periods

5:25 AM - 7:55 AM
5:47 PM - 8:17 PM

Minor Periods

12:17 PM - 1:47 PM
11:24 PM - 12:54 AM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 60.6°F
Average Humidity: 65%
Chance of Rain: 2%
Wind: 11.6 mph
UV Index: 5.1

Air Quality

EPA Index 1 • Good
PM2.5
6.3 μg/m³
Good
PM10
7 μg/m³
Good
Ozone (O3)
51.6 μg/m³
Photochemical
NO2
6.8 μg/m³
Nitrogen Dioxide
SO2
2.1 μg/m³
Sulfur Dioxide
CO
151.5 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 39m daylight
Sunrise 7:00 AM
Solar Noon 12:19 PM
Sunset 5:38 PM
Moon
First Quarter • 54%
Moonrise 1:17 PM
Transit 7:00 PM
Moonset 1:43 AM

Best Times for Fishing or Hunting

Major Periods

6:09 AM - 8:39 AM
6:30 PM - 9:00 PM

Minor Periods

1:13 AM - 2:43 AM
12:47 PM - 2:17 PM
Action Rating:
Fair Action 2/5
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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