Water Temperature of the Medina River in San Antonio, TX

Current Water Temperature

79.3°F

Measurement Time: Wednesday, May 13, 2026, 3:45 PM CDT

Temperature Locations

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Local Points of Interest

Medina River Natural Area

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

82.6°F
Clear
Clear
83.8°F
80.8°F
49%
E 7.8 mph
16.4 mph
79.2°F
58°F
0 in
0%
9 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 94°F
L: 63°F
Sunny
Thu
H: 91°F
L: 66°F
Sunny
Fri
H: 93°F
L: 67°F
Partly Cloudy
Sat
H: 92°F
L: 67°F
Patchy rain nearby
Sun
H: 93°F
L: 74°F

Air Quality

AQI: 1 - Good
PM2.5: 8.25 μg/m3
PM10: 9.05 μg/m3
Carbon Monoxide: 170.85 μg/m3
Nitrogen Dioxide: 10.45 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 78 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 1:30 PM
Sunset: 8:18 PM
Daylight: 13 hrs 35 mins
Moonrise: 4:16 AM
Moon Transit: 12:00 AM
Moonset: 5:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:20 PM - 11:50 PM

Minor Periods

4:37 PM - 6:07 PM
3:46 AM - 5:16 AM

Action Rating: 2 out of 5

Air Quality Alert issued May 12 at 2:26PM CDT by NWS Austin/San Antonio TX

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Tue May 12, 2026, 2:26 PM
Expires: Wed May 13, 2026, 7:00 PM

AQAEWX The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the San Antonio area for Wednesday, May 13, 2026. Atmospheric conditions are expected to be favorable for producing high levels of ozone air pollution in the San Antonio area on Wednesday. You can help prevent ozone pollution by sharing a ride, walking or riding a bicycle, taking your lunch to work, avoiding drive through lanes, conserving energy, and keeping your vehicle properly tuned. If required, the next Ozone Action Day will be issued by 3 PM on Wednesday, May 13, 2026.


Air Quality Alert issued May 13 at 3:30PM CDT by NWS Austin/San Antonio TX

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Wed May 13, 2026, 3:30 PM
Expires: Thu May 14, 2026, 7:00 PM

AQAEWX The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the San Antonio area for Thursday, May 14, 2026. Atmospheric conditions are expected to be favorable for producing high levels of ozone air pollution in the San Antonio area on Thursday. You can help prevent ozone pollution by sharing a ride, walking or riding a bicycle, taking your lunch to work, avoiding drive through lanes, conserving energy, and keeping your vehicle properly tuned. If required, the next Ozone Action Day will be issued by 3 PM on Thursday, May 14, 2026.


Wednesday, May 13, 2026

Weather Forecast

Sunny
94.1°F
63°F
78.1°F
60%
0 in
0%
0%
9.4 mph
10.3


Air Quality

AQI: 1 - Good
PM2.5: 10.66 μg/m3
PM10: 12.62 μg/m3
Carbon Monoxide: 193.61 μg/m3
Nitrogen Dioxide: 10.09 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 109.04 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 1:30 PM
Sunset: 8:18 PM
Daylight: 13 hrs 35 mins
Moonrise: 4:16 AM
Moon Transit: 12:00 AM
Moonset: 5:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:20 PM - 11:50 PM

Minor Periods

4:37 PM - 6:07 PM
3:46 AM - 5:16 AM

Action Rating: 2 out of 5

Thursday, May 14, 2026

Weather Forecast

Sunny
91.4°F
65.6°F
78.1°F
54%
0 in
0%
0%
16.1 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 7.04 μg/m3
PM10: 8.65 μg/m3
Carbon Monoxide: 166.77 μg/m3
Nitrogen Dioxide: 7.17 μg/m3
Sulphur Dioxide: 1.91 μg/m3
Ozone: 102.96 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 1:30 PM
Sunset: 8:19 PM
Daylight: 13 hrs 36 mins
Moonrise: 4:49 AM
Moon Transit: 11:27 AM
Moonset: 6:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:57 AM - 1:27 PM

Minor Periods

5:44 PM - 7:14 PM
4:19 AM - 5:49 AM

Action Rating: 2 out of 5

Friday, May 15, 2026

Weather Forecast

Sunny
93°F
66.8°F
78.5°F
64%
0 in
0%
0%
19.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.27 μg/m3
PM10: 6.31 μg/m3
Carbon Monoxide: 149.29 μg/m3
Nitrogen Dioxide: 3.97 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 100.44 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 1:30 PM
Sunset: 8:20 PM
Daylight: 13 hrs 37 mins
Moonrise: 5:27 AM
Moon Transit: 12:21 AM
Moonset: 7:25 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:51 AM - 2:21 PM

Minor Periods

6:55 PM - 8:25 PM
4:57 AM - 6:27 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Partly Cloudy
92.3°F
66.7°F
78.6°F
68%
0 in
0%
0%
19.7 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 4.39 μg/m3
PM10: 5.92 μg/m3
Carbon Monoxide: 146.21 μg/m3
Nitrogen Dioxide: 3.06 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 89.88 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 1:30 PM
Sunset: 8:20 PM
Daylight: 13 hrs 38 mins
Moonrise: 6:11 AM
Moon Transit: 1:21 PM
Moonset: 8:40 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:51 AM - 3:21 PM

Minor Periods

8:10 PM - 9:40 PM
5:41 AM - 7:11 AM

Action Rating: 5 out of 5

Sunday, May 17, 2026

Weather Forecast

Patchy rain nearby
92.9°F
73.8°F
81.6°F
67%
0.01 in
88%
0%
19.9 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 5.95 μg/m3
Carbon Monoxide: 142.85 μg/m3
Nitrogen Dioxide: 2.95 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 92 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 1:30 PM
Sunset: 8:21 PM
Daylight: 13 hrs 40 mins
Moonrise: 7:03 AM
Moon Transit: 2:25 PM
Moonset: 9:53 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:11 AM - 2:41 AM
1:55 PM - 4:25 PM

Minor Periods

9:23 PM - 10:53 PM
6:33 AM - 8:03 AM

Action Rating: 4 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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