Join Date: Aug 2011
Location: Barcelona, London, on a plane
Programs: IB+ Gold, TK E+, Hyatt Globalist, Marriott LTP, IHG Diamond
Posts: 14,182
Rates are available when the individual hotels load them in the system.
Your best bet is to monitor your chosen hotel on a daily basis to see exactly when / if nights for December 2021 are being loaded.