Bridge Bay Marina
About
- Inside Yellowstone National Park on Yellowstone Lake
- Powerboat and rowboat rentals
- Guided cutthroat-trout fishing trips
- Largest high-elevation lake in North America
- Slip rentals for park visitors with their own boats
Gallery
Operator details
- Price Range
- $$$
- Best Season
- Mid-June through early September
- Waters
- Yellowstone Lake
- Activities
- Fishing, Marina Services, Rentals
- Vessels
- Powerboat
Typical flow by month
1927 to 2026
The water at Bridge Bay Marina typically runs highest in July, at a median 3,890 cfs, and lowest in January, at 375 cfs. The highest flow on record for any single day is 9,930 cfs, in 1997.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 375 | 280 to 500 | |
| February | 385 | 300 to 497 | |
| March | 450 | 373 to 550 | |
| April | 524 | 458 to 609 | |
| May | 976 | 745 to 1,330 | |
| June | 3,720 | 2,930 to 4,590 | |
| July | 3,890 | 2,960 to 5,140 | |
| August | 2,000 | 1,530 to 2,600 | |
| September | 1,100 | 892 to 1,390 | |
| October | 729 | 625 to 929 | |
| November | 597 | 464 to 696 | |
| December | 463 | 350 to 540 |
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 96 years of record. Statistics published by the US Geological Survey for Yellowstone River at Yellowstone Lk Outlet YNP (site 06186500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Streamflow
810 cfs
Below normal (23rd)
Water level
3.26 ft
High today
60°F
Wind
13 kt
Gusts 18 kt
Rain chance
34%
Week ahead
Forecast from Open-Meteo global models (NOAA & ECMWF). See full conditions →
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