Around here
Around Chemainus River
Source: Recreation Sites and Trails BC, Open Government Licence (British Columbia) · Data Source: Recreation.gov · Source: Canadian Geographical Names Database (NRCan), Open Government Licence - Canada · Public land: USGS PAD-US
About this river
Chemainus River is a 37.0 mile river near Unreel Charters in British Columbia. Streamflow is measured at the Water Survey of Canada gauge Chemainus River near Westholme (site 08HA001). Reach geometry comes from Natural Resources Canada's National Hydro Network.
Typical flow by month
1914 to 2025
Chemainus River typically runs highest in December, at a median 805 cfs, and lowest in August, at 21 cfs. The highest flow on record for any single day is 18,964 cfs, in 1983.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 791 | 427 to 1,609 |
| February | 639 | 383 to 1,181 |
| March | 660 | 396 to 1,040 |
| April | 630 | 420 to 904 |
| May | 369 | 227 to 592 |
| June | 164 | 81 to 252 |
| July | 49 | 30 to 82 |
| August | 21 | 13 to 32 |
| September | 23 | 13 to 41 |
| October | 136 | 39 to 350 |
| November | 724 | 340 to 1,485 |
| December | 805 | 436 to 1,642 |
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 75 years of record. Statistics published by the US Geological Survey for Chemainus River near Westholme (site 08HA001). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
Put Chemainus 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 Chemainus 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.
