Honolulu Weather In September
Honolulu Weather In September is still warm, dry, and wonderful. While the daily temperatures in many US cities will drop dramatically in September, Honolulu remains in the mid 70 to low 90s range for the entire month. The record rainfall of 1.35 inches is really too small to mention.
Your packing list should include lots of really skimpy clothes; you will have room for all of the other things you may need.