This study, the correlation between Niño SST index (blue) and principal component time series of seasonal (red) shows figure for each of the seasonal and the correlation coefficient between them is shown in table1. The value is negative association for all seasons , because a high SST anomaly gives a low rainfall anomaly, and a low SST anomaly gives a high rainfall anomaly. Values estimated to be significant at p < 0.05 are bolded, those at p < 0.01 are also underlined.