About this river
Bayou Teche is a 24.0 mile river near Champagne's Cajun Swamp Tours in Louisiana. Streamflow is measured at the USGS gauge Bayou Teche at Keystone L&D nr St. Martinville, LA (site 07385700). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1960 to 2025
Bayou Teche typically runs highest in February, at a median 609 cfs, and lowest in October, at 306 cfs. The highest flow on record for any single day is 3,310 cfs, in 1973.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 591 | 418 to 822 | |
| February | 609 | 418 to 804 | |
| March | 527 | 337 to 709 | |
| April | 396 | 267 to 644 | |
| May | 369 | 261 to 626 | |
| June | 325 | 236 to 498 | |
| July | 311 | 216 to 424 | |
| August | 314 | 224 to 407 | |
| September | 330 | 257 to 477 | |
| October | 306 | 225 to 411 | |
| November | 339 | 249 to 532 | |
| December | 436 | 308 to 668 |
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 66 years of record. Statistics published by the US Geological Survey for Bayou Teche at Keystone L&D nr St. Martinville, LA (site 07385700). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Bayou Teche'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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