Hi Landy,
Many thanks for your message and we hope you are looking forward to your Japan trip. later this month
Weather trends for October show that the temperature starts to cool down after the summer heat and can be much more comfortable, plus you'll be seeing the beautiful autumn colours on the trees. Layering up would be recommended. Average rainfall is 158mm of rainfall across 17 days and so taking a lightweight, breathable waterproof and umbrella would be a good idea.
Some days you may be travelling for longer periods and so comfort will be king but do also bear in mind those days where you have city tours - you'll need comfortable shoes to walk in.
Hope you have a great trip!
Regards
Just You Community team