Question: Does tree leaves turn yellow, orange red and/or purple during the autumn season in Hawaii?
Answer: Yes, but you'd need to drive around for hours or fly to another island just to find a tree with autumn leaf colors.
The Liquidambar styraciflua (a.k.a. American sweetgum) is the only tree in Hawaii that I know of that changes the colors of its leaves during the autumn season.
Notes: Hawaii undergoes subtle changes during the autumn season: for example, during the autumn in Honolulu, Hawaii:
Approximately 75 minutes of daylight is lost.
Rainfall increases slightly.
The temperature in the day decreases by approximately 7 degrees.
The temperature in the night decreases by approximately 6 degrees.