Techniques for management of data in multi-storage systems allow managing storage of data in a first storage of multiple storages in a multi-storage system based on the temperature of the data (or data temperature) obtained for a second storage of the multiple storages in a multi-storage system. For example, in a multi-storage system that includes at least one non-volatile storage (e.g., one or more HDDs) and at least one volatile storage (e.g., a cache memory device), the storage of a particular data portion (e.g., a storage unit of data) for the at least one volatile storage can be managed based on a temperature of the data determined for the non-volatile storage. By way of example, persistent temperatures used for management of data in a non-volatile storage system (e.g., a multi-tier storage of a database system) can be used to effectively manage the storage of the data in a cache memory that is typically provided for improving performance by keeping data that is likely to be used in the cache memory. As a result, overall performance of a system can be further enhanced by allowing persistent temperature measurements to be used in managing cache memory, instead of solely relying on conventional techniques for caching data which typically do not take into account persistent temperatures associated with a non-volatile storage environment.