While I'll basically utilize the temperature map of Asahi, I am doing some noteable differences, which should be climatologically probable.
NK, in British Columbia, its fairly comfortable with a maritime temperate climate versus the interior of Canada at your same latitude - simply because the oceans affect on temperature and humidity. I think the islands of Asahi could be a bit warmer than those temperature belts allude.
Also I could have some type of gulf stream type current of warmer water flowing along the southern coastal region of the main island - this too could increase the ambient temperature versus what its latitute might otherwise be.
I don't want Asahi to be semi-tropical, but I don't want Alaska either.
PS: any idea on prevailing winds? I'd like to know which way the weather is coming in, as it might affect weather hitting the continent of Ansium too...