We came and stayed a month in June. I had my 10 yr old twin boys and my 18 yr old daughter and 23 year old niece. it was hot but we liked June there were many older kids and kids out and about due to it was summer time. I would recommend summer months if you are bringing older kids. I came back for a time in July then moved for 4 months to SP from Aug. to end of Dec. That is slow time and we enjoyed being in SP when it was not peek season. I can tell you the weather was nice in Dec. and I am sure Jan, Feb. and March is the best time to visit but that is peek season.
Mary