Aren’t Kaohsiung summers usually a touch milder (OK, “marginally less nightmarish”) than Taipei’s? My impression is, yeah, it’s definitely more subtropical in Kaohsiung: it almost never gets cold, and there are probably more warm days across the year than in Taipei, but these days I think Taipei gets higher temperatures in the summer. All relative, of course: “a touch milder” may mean it’s 35C in Kaohsiung vs 37C in Taipei.
But my Google skills are failing to find support for this at a meaningful level; here’s just one data point, from August 2017:
Oh yeah, here’s another of the many threads on the “what it’s like down south” topic: