Seriously late to the party here, currently on day 6 of a 25 day trip to Japan. Have been trying to read through all of the threads and make notes!
We are trying to fit a lot in, but this may be our only trip here because there are so many other places we want to see around the world.
We were stuck with summer due to DS still being in education, but managed to come a bit earlier due to him sitting his GCSEs this year. Weather wise it's as expected - hot and humid. But maybe not quite as bad as I had feared. I have a lovely case of Disney rash and my ankles tend to disappear over the course of the day 🤣 We've got fans, cooling towels, hats, chilly drinks bottles and I've bought a UV umbrella too. Still sweating buckets, especially now we are in Kyoto which is way more humid than Tokyo and Nagoya were. Apparently August is worse and tourist season ramps up at the end of July, so we'll miss that at least.
Our itinerary is:
Day 1 Tokyo
Days 2-4 Nagoya with trips to Tsumago/Magome and Takayama
Days 5-8 Kyoto
Day 9 Koyasan
Day 10-11 Osaka
Day 12 Hiroshima
Day 13-14 Kobe with a trip to Himeji
Day 15-16 Osaka with a trip to Nara
Day 17-19 Okinawa
Day 20-25 Tokyo
In hindsight we might have moved around less and done more trips from one location, but so far it has been OK. Planning to use lockers in some places so we can get straight out when we arrive, rather than heading to the hotel to leave our bags. They have been very strict on not checking in before 3, but no issues with leaving bags beforehand or after checkout.
So far we've been getting up and out early, then heading back for a rest after lunch before heading out again late afternoon/ early evening. This has helped with adjusting to the time difference and also avoids the hottest part of the day.
I'll report back with any tips I discover along the way.