Are you camping? Great time of year to be there, unless it's raining sideways--which means hellacious winds. Bring lots of firewood, plan on the sun (if you get any) to set over the canyon walls about 3-3:30 pm and the temps to drop immediately.
I solo'd it one Thanksgiving day and night, and had a nice time, great sunny winter weather--read a lot and hit the sack by 8 pm. Great getaway from it all trip. Did wear a drysuit for the rapids just in case.