Here are the cities that have good weather in a specific month:
January
February
March
April
May
June
July
August
September
October
November
December
Cities with great weather in October
Buenos Aires in September Good
Rio De Janeiro in September Good
Foz Do Iguacu in September Good
Belo Horizonte in September Good
Belo Horizonte in October Good
Foz Do Iguacu in November Good