Peak season in Bali extends to the middle of September, with hotel prices at their highest. This is a great time to be in Bali or Lombok, with long days of uninterrupted sunshine and very little rain.
Sumbawa, Flores and Komodo Island have climates similar to Bali.
The islands of Nusa Tenggara should see long clear days of sunshine and little rainfall.
In Southern Sulawesi this is the driest time of year with long days of uninterrupted sunshine. In the north also, around Manado, this is the dry season with very little rain at this time of year.