According to CWB it hit 40C in Nantou yesterday. I don't quite understand how they calculate 'wet-bulb temp' but know it's a combination of heat and humidity - that must have been through the roof in Taiwan yesterday.

There was a meiyu type downpour in Taiwan yesterday with more rain forecast for the next two days but then it's predicted to heat up again with mid-thirties in Taipei. May can throw up some of the hottest temps of the year so be interesting to see where it goes this year.