Just because the water has cooled off doesn't mean that you have to give up on spinnerbaits. In cooler water, bass can still be aggressive and hit a fast burning spinnerbait. What you may find though is
that most bass are sluggish and prefer a slower presentation. Try letting your spinnerbait hit the bottom before you bring it back to the kayak. As you retrieve it, reel it just fast enough to keep the blades spinning but also maintaining bottom contact. This works exceptionally well around wood and rocks. Slow rolling a spinnerbait in cold water is a great way to put big fish in the boat!