Whitsunday Weather El Nino Predicted For Whitsundays 11:51am, Thu 11 Dec 2014El Nino Predicted For Whitsunday Weather: El Niņo is the negative phase of the El Niņo Southern Oscillation. It is associated with warmer than average sea surface temperatures in the central and eastern tropical Pacific. What does this mean for you? El Nino generally results in below average rainfall and less chance of tropical cyclones. Keep up to date with Whitsunday weather patterns on our weather page we have recorded the last 8 years of weather patterns. The last El Nino recorded was 2009 and 2010.