Marti, the chilliest we got was about 65 in January, so I would assume high 60s to low 70s.
However, if the weather does not allow, the indoor Lotus Pool is just beautiful -- truly my favorite indoor pool I've ever experienced. Piped in New Age music, teak chaises, and thick green cloth chaise pads. We also never had a problem getting one. Truly the most relaxing area of the ship for us -- we spent every late morning to mid-afternoon by the pool reading, chatting with other passengers and Art listening to his Ipod.