This El Niño is going to be interesting come Christmas time. Lot's of weather and climate unpredictability coming to a region near you!
Expect lots more chaos and death of wildlife in the ocean as we are seeing in the Pacific Northwest of the United States, sharks migrating to places where they don't normally and surprising humans, gray whales are washing up on the shores at larger and larger rates, jellyfish to have a lot more food so there will be a lot more jellyfish, invasive beetle species will have a lot more food, algae blooms will be a lot more prevalent so the ocean will become more toxic.
Personally, I don't put much faith in weather predictions that are more than a week away.
Unfortunately for where I'm at, the prediction due to el nino is more drought, which sucks because we are already desperately dry. Hopefully the following la nina year will bring us some moisture.