MEDIAN FLOW RATE · 7 DAY
0cfs 85.0% vs avg
Optimal band: 1–1 cfs
PERIOD HIGH
2cfs
PERIOD LOW
1cfs
RUNNABLE
80%
last 7 day in band
Precipitation History
Your History · Onion Ck at Twin Creeks Rd nr Manchaca, TX
Track your history
Sign in to track your sessions at Onion Ck at Twin Creeks Rd nr Manchaca, TX — best days, monthly trends, and time on the water.
Sign inSPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
97°
77°
SUN
98°
75°
MON
102°
74°
TUE
100°
75°
WED
102°
75°
THU
102°
74°
FRI
102°
73°
FISH INDEX
Temperature
Warm
Wind
Light
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
06:34 AM
SUNSET
08:36 PM
14H 2M OF DAYLIGHT8H 16M REMAINING
MOON PHASE
Waning Gibbous
79% illuminated
Station Location
30.1263, -97.8211Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-04 12:20 UTC
Site #08158827·USGS
Create a free account to save favorites, set flow alerts, and track conditions
