With the Sony a6500, and even the a6400 in bright sunlight, I have had similar experiences but you can configure the camera to reach higher temperatures before shutting down. This camera can still overheat and shut down at times though.
Others have shown various techniques to help with the Sony a6300, a6400, and a6500 camera overheating problems and I have used some of those approaches as well. These tips to help with camera overheating include:
Now I want to show you an option I use to handle the overheating issue. With this option, I have been able to record as long as I want to. Please understand that this is a method that works for me. I don't expect everyone to like it. I do want to recommend that you use this method at your own risk.
My method involves using these mini ice packs. This is the process:
One of the benefits of using this method is I am not getting any fan noise. I can also use this technique with my gimbal because the ice pack doesn't weigh very much and the gimbal can handle the weight just fine. This method has not failed me yet and has allowed me to record as long has I have needed to! I hope this technique helps you out.
Watch the video below to see exactly how I use these mini ice packs to help me cool the Sony a6300, Sony a6400, and Sony a6500 cameras!