About this river
San Dieguito River is a 3.3 mile river near La Jolla Kayak in California. Streamflow is measured at the USGS gauge Guejito C near San Pasqual CA (site 11027000). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1947 to 2026
San Dieguito River typically runs highest in March, at a median 0.7 cfs, and lowest in August, at 0.0 cfs. The highest flow on record for any single day is 1,310 cfs, in 1980.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 0.4 | 0.1 to 1.2 | |
| February | 0.7 | 0.2 to 2.1 | |
| March | 0.7 | 0.2 to 3.0 | |
| April | 0.4 | 0.1 to 1.9 | |
| May | 0.2 | 0.0 to 0.7 | |
| June | 0.1 | 0.0 to 0.2 | |
| July | 0.0 | 0.0 to 0.0 | |
| August | 0.0 | 0.0 to 0.0 | |
| September | 0.0 | 0.0 to 0.0 | |
| October | 0.0 | 0.0 to 0.0 | |
| November | 0.0 | 0.0 to 0.1 | |
| December | 0.1 | 0.0 to 0.6 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 57 years of record. Statistics published by the US Geological Survey for Guejito C near San Pasqual CA (site 11027000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
One mapped launch sits in the mapped area of San Dieguito River. Ramp data comes from the USGS national boat-ramp inventory.
- Lake HodgesHodges ReservoirPublic
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show San Dieguito River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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