About this river
Siletz River is a 4.6 mile river near Ossies Surf Shop in Oregon. Streamflow is measured at the USGS gauge Siletz River at Siletz, OR (site 14305500). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1906 to 2026
Siletz River typically runs highest in January, at a median 2,290 cfs, and lowest in September, at 98 cfs. The highest flow on record for any single day is 36,700 cfs, in 1999.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 2,290 | 1,320 to 4,250 | |
| February | 1,940 | 1,140 to 3,460 | |
| March | 1,670 | 1,080 to 2,780 | |
| April | 1,165 | 824 to 1,860 | |
| May | 636 | 429 to 992 | |
| June | 361 | 255 to 581 | |
| July | 190 | 143 to 254 | |
| August | 105 | 89 to 136 | |
| September | 98 | 77 to 181 | |
| October | 250 | 110 to 642 | |
| November | 1,605 | 659 to 3,405 | |
| December | 2,270 | 1,270 to 4,150 |
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 108 years of record. Statistics published by the US Geological Survey for Siletz River at Siletz, OR (site 14305500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
5 mapped launches sit in the mapped area of Siletz River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
- Hee Hee IllaheeSiletz RiverPublic
- Mill ParkSiletz RiverPublic
- Twin Bridges Memorial ParkSiletz RiverPublic
- Ojalla Bridge SlideSiletz RiverPublic
- Morgan ParkSiletz RiverPublic
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Siletz 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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