Ishigaki in mid-April for 4 days

Hi, I'm planning to fly to Ishigaki for 4 days in mid-April, and it's my first time. Is it a good time to visit or it could be rainy?

I'll be travelling solo and without a car, mostly doing island hopping from the ferry terminal.

It it better to stay at Ishigaki city or split the trip and stay on Taketomi for a couple of days?

Thank you!

by tb_tb_