This research accomplished the comparison of weather forecast output of CCAM upon ARPEGE and TLAPS to examine• the performance of CCAM in Indonesia region. The Global Forecasting System (GFS) model output was used as the initial condition of cc AM. The comparison was applied to theforecast output on 1-28 February 2009 which represents the rainy season and 1-31 Mays 2009 which represents the o…