With global warming, it is particularly important to study pedestrian thermal comfort in cities with high humidity and heat. This research was carried out to assess street thermal conditions and how pedestrians perceive them, with the ultimate aim of improving urban thermal environments. A total of four conditions, i.e., different gender, different age, different SVF and different street orientation conditions, were investigated to assess the contribution of thermodynamic parameters to subjective thermal evaluation. The results showed that the neutral range of thermal comfort for pedestrians in summer was smaller than the range of thermally neutral perceptions. The difference between thermal sensation and subjective comfort of pedestrians of different genders was small, while the difference was larger for pedestrians of different ages. High temperatures made men more uncomfortable compared to women. As age increases, a reduction in pedestrians' thermal perceptual acuity occurs with environmental variation. The effect of air velocity on pedestrian heat perception was strongest on EN-WS oriented streets and weakest on E-W oriented streets. In summary, this study aims to reveal how thermal equivalent temperature elements act on pedestrian subjective thermal sensation and thermal comfort evaluation under different conditions, which can help to intervention methods to ameliorate human thermal experience in unenclosed metropolitan zones.