0155名無しさん@英語勉強中 (ワッチョイ 89c1-qJjT)2018/07/15(日) 16:10:33.01ID:Azcu1mKY0 He's right. In the strict sense I think humidity is the key factor that influences your perception of the heat. I flew to Okinawa few years ago in the summer. Once I took a step outside the plane, it almost felt like I just got into a sauna because of its hellishly hot & humid weather.