Well, it's hardly light talk for a king here - I'm certainly not king of Miracle Country. [Says this almost jokingly, although again it addresses his relative issues about whether or not he can consider himself king. But THAT is certainly not a topic that's lighter. Welp.]
... Although... [well, yeah, wtf is light talk anyway?]
There's the weather? [Merlin would so be laughing at him right now, welp. In his defense, he's suggesting weather in an amused way, too, so he's not taking himself too seriously here.]