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Around San Joaquin River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
San Joaquin River is a 62.1 mile river near O'Neill Forebay Rentals in California. Streamflow is measured at the USGS gauge San Joaquin R near Crows Landing CA (site 11274550). The National Hydrography Dataset places it at stream order 9. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1996 to 2026
San Joaquin River typically runs highest in March, at a median 1,390 cfs, and lowest in September, at 423 cfs. The highest flow on record for any single day is 37,600 cfs, in 1997.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 894 | 608 to 1,920 |
| February | 988 | 677 to 3,440 |
| March | 1,390 | 838 to 4,060 |
| April | 1,000 | 601 to 2,840 |
| May | 1,050 | 450 to 2,710 |
| June | 525 | 332 to 1,610 |
| July | 453 | 258 to 865 |
| August | 428 | 245 to 685 |
| September | 423 | 270 to 920 |
| October | 600 | 411 to 964 |
| November | 735 | 525 to 935 |
| December | 718 | 581 to 914 |
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 30 years of record. Statistics published by the US Geological Survey for San Joaquin R near Crows Landing CA (site 11274550). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
8 mapped launches sit in the mapped area of San Joaquin River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
- San Luis Reservoir State Recreation Area - Los Banos CreekSan Luis ReservoirPublic
- San Luis Reservoir State Recreation AreaSan Luis ReservoirPublic
- San Luis Reservoir State Recreation AreaSan Luis ReservoirPublic
- Medeiros Boat San Luis Reservoir, O'Neill ForebaySan Luis Reservoir - O'Neill ForebayPublic
- San Luis Reservoir State Recreation AreaSan Luis ReservoirPublic
- Berenda ReservoirBerenda ReservoirPublic
- Great Valley Grasslands State ParkSan Joaquin RiverPublic
- Lake YosemiteLake YosemitePublic
Made to print
Put San Joaquin River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show San Joaquin River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
