Waterlands
San Gregorio C A San Gregorio Ca River
USGS · 11162570
SAN GREGORIO C A SAN GREGORIO CA RIVER
USGS · 11162570LIVE

SAN GREGORIO C A SAN GREGORIO CA

SAN MATEO COUNTY, CA37.3257°N, -122.3866°W Updated 49 min ago
FLOW RATE
5.18cfs
GAUGE HT
3.75ft
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
5.18cfs 5.6% vs avg
Optimal band: 46 cfs
PERIOD HIGH
5.45cfs
PERIOD LOW
4.93cfs
RUNNABLE
100%
last 1 day in band

Gauge Height

3.75ft
Precipitation History
Your History · SAN GREGORIO C A SAN GREGORIO CA

Track your history

Sign in to track your sessions at SAN GREGORIO C A SAN GREGORIO CA — best days, monthly trends, and time on the water.

Sign in
SPONSORED

Station Location

37.3257, -122.3866
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-06 11:15 UTC
Site #11162570·USGS

Create a free account to save favorites, set flow alerts, and track conditions