How soon are visa appointment dates available?

[collegian]

Hello,

 

I am trying to schedule a visa interview appointment but it just shows the earliest available date and I can't view the available dates without making a payment. 

 

I was wondering how many days in the future would dates be available? I'm planning to travel in late September. Does anyone have any experience/suggestions? Please advise. I don't want to pay up and get stuck without being able to book a future appointment date.

 

 

Thanks.