August is the warmest month, with temperatures ranging from 54ºF (12ºC) to 66ºF (19ºC). If you prefer cooler weather, organize your trip for December. It's typically between 41ºF (5ºC) and 46ºF (8ºC) then. January is the ideal month to experience a more relaxed vibe and potentially find more affordable luxury hotels in Manzanita.