@Eddie-and-Kim0
I think it would really depend on the host. Some raise prices in high season, some don't.
Personally, I raise my prices during July~August and Jan~Feb because of costs for the AC and heating.
My location doen't really have a "high season" but if it did I would probably be inclined to charge a little bit more than usual. Maybe around 10~20% more than the normal rate and also provide a special welcome gift as well (like a bottle of wine or a six-pack - something not normally provided/offered).
I've hiked up my rates for the upcoming Christmas & New Year's holidays mainly because I hope I DON'T have to host during that time, but I don't want to block the dates. If it just so happens Henry and I get a guest willing to pay a premium price to stay with us for those dates then we'd take comfort in the fact we are being paid very well to "work" during the holidays 🙂 but this is just me..... and as you will find out each host is different.