Updated
Medina River Natural Area
Nature preserve · San Antonio, Texas
Cool water — ease in carefully
Use cautionCool water — ease in carefully: water temperature is 68°F, cool enough to cause cold-water shock on a sudden entry.
- Water temp 68°F (20°C)
- Streamflow 8 ft³/s
- Gage height 4.05 ft
Live, provisional data from USGS gauge Medina Rv nr Somerset, TX (0.2 mi away), as of Oct 20, 2:45 AM gauge-local time.
Why, sources & official advisories
- Water temperature is 68°F, cool enough to cause cold-water shock on a sudden entry. — USGS gauge 08180800, as of Oct 20, 2:45 AM gauge-local time
- No official beach advisory posted (Texas Beach Watch (Texas GLO) checked).
- Flow is below the 25th percentile for Oct 20 (median 74 ft³/s over 41 years). — USGS daily streamflow statistics, as of Oct 20, 2:45 AM gauge-local time
Official advisories
Checked against Texas Beach Watch (Texas GLO) — no advisory posted.
Get an email when it’s warm enough
It’s 68°F at Medina River Natural Area now. We check the water daily and email you once when it reaches your temperature.
511-acre oasis with riverfront paved & dirt hiking & biking trails, a variety of terrain & wildlife.
Things to Do Near Medina River Natural Area
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Weather at Medina River Natural Area
61°F, Clear · H 85° / L 60° · 3% chance of rain3-day forecast
Frequently asked questions
- Where is Medina River Natural Area?
- Medina River Natural Area is a nature preserve in San Antonio, Texas.
- What is the water temperature at Medina River Natural Area?
- As of October 20, 2026, the water temperature at Medina River Natural Area in San Antonio, Texas is 68°F (20°C), measured by USGS gauge 08180800, 0.2 miles away.
- Can you swim at Medina River Natural Area?
- Cool water — ease in carefully: water temperature is 68°F, cool enough to cause cold-water shock on a sudden entry. Checked October 20, 2026.
- How is Medina River Natural Area rated?
- Medina River Natural Area in San Antonio, Texas has an average visitor rating of 4.7 out of 5, based on 1121 reviews.
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Location & Contact
💡 Best times & visiting tips
- ›Weekday mornings (8–10 AM) are typically less crowded
- ›Check the forecast 2–3 days ahead for best planning
- ›Avoid holiday weekends for a quieter experience
Features & amenities
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