Around here
Around Rideau River
Nature4
Source: Canadian Geographical Names Database (NRCan), Open Government Licence - Canada · Public land: USGS PAD-US
About this river
Rideau River is a 33.9 mile river. Streamflow is measured at the Water Survey of Canada gauge Rideau River below Merrickville (site 02LA011). Reach geometry comes from Natural Resources Canada's National Hydro Network.
Typical flow by month
1979 to 2025
Rideau River typically runs highest in April, at a median 1,896 cfs, and lowest in September, at 265 cfs. The highest flow on record for any single day is 5,333 cfs, in 1993.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 690 | 429 to 1,036 |
| February | 638 | 465 to 916 |
| March | 1,014 | 698 to 1,518 |
| April | 1,896 | 1,289 to 2,479 |
| May | 770 | 415 to 1,232 |
| June | 390 | 268 to 562 |
| July | 298 | 239 to 366 |
| August | 279 | 247 to 353 |
| September | 265 | 235 to 373 |
| October | 461 | 300 to 622 |
| November | 596 | 285 to 840 |
| December | 660 | 360 to 1,243 |
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 20 years of record. Statistics published by the US Geological Survey for Rideau River below Merrickville (site 02LA011). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
Put Rideau 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 Rideau 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.
