Pier 11 Marina
Pier 11 Marina is a marina in Chicago, Illinois. It is a full-service marina located on the Calumet River, offering boat storage, service, and slip rentals.
Gallery
Operator details
- Vessels
- Powerboat
Boat launches near Pier 11 Marina
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Typical flow by month
1948 to 2026
The water at Pier 11 Marina typically runs highest in March, at a median 191 cfs, and lowest in September, at 48 cfs. The highest flow on record for any single day is 4,240 cfs, in 1957.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 85 | 55 to 157 | |
| February | 97 | 60 to 189 | |
| March | 191 | 115 to 367 | |
| April | 170 | 100 to 341 | |
| May | 126 | 79 to 247 | |
| June | 91 | 56 to 194 | |
| July | 67 | 45 to 125 | |
| August | 56 | 41 to 95 | |
| September | 48 | 36 to 88 | |
| October | 57 | 38 to 99 | |
| November | 72 | 46 to 146 | |
| December | 90 | 52 to 172 |
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 79 years of record. Statistics published by the US Geological Survey for Little Calumet River at South Holland, IL (site 05536290). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Waves
0.3 ft
Wind
5 kt
Gusts 23 kt
Air
70°F
Rain chance
4%
Forecast outlook
Forecast from Open-Meteo global models (NOAA & ECMWF). See full conditions →
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