Kickflip said..
Yes August -> October are good times to kite in Indonesia. In Bali, you'll be probably be kiting in Sanua, but the best place to stay is Seminyak (Great Restaurants and Bars). In the Gilli's, Gilli Air is the best place to kite. Gilli T, is the best place to party. Would recommend staying at Gilli Meno or Gilli Air, unless your backpacker, then Gilli T :)
I went to both in late September / early October last year. In Seminyak the wind was at the most 16kts in the afternoons, and the surf was rough as guts - 6ft plus. Definitely not kiter friendly, unless you're a pro with a bigger than 12m kite. Sanur was OK as it's sheltered but again, wind was light. Lots of other boats & hazards on the water.
Gili T the wind was a tad stronger, maybe up to 20kts in the afternoons most days. But for the first 200m off the beach at high tide the water is less than 1m deep with razor sharp reef below - which gets completely exposed at low tide. Beyond that, if you can make it out there are strong currents. I wouldn't kite there.
Didnt go to Gili Air so cant comment.
There's got to be better kiting destinations than Bali, surely?