It's a little cheaper here than in nearby Copacabana beach, but in general all the same: most of hotels are expensive, but you can find some pretty cheap options. Find hotels in Ipanema
How to get there 
Fly to Rio de Janeiro International Airport (GIG)
. Next hire a taxi. Never catch a taxi on the street! You may just go to the nearest cafe or hotel, and ask to call a taxi for you. Find flights to Ipanema
When to go 
The best time for a beach holiday in Rio de Janeiro is a warm period from October to April.
Water temperature, C
Wind speed, meter/sec
Useful information 
West end of Ipanema beach called Leblon
. Formally it is the other district, but in fact this is the same beach.