The Study of the phenomenon of the urban heat islands in Songkhla Province Thailand, analysis via using the daily air temperature data and the monthly minimum-maximum air temperature from 3 Meteorological stations of Songkhla Province ( Kho Hong, Hat Yai, and Sadao ) during 2008 - 2017. The result shows that the average daily air temperature in Kho Hong and Hat Yai is 1 - 2 ºC higher than in Sadao during the nighttime period. The intensity of the urban heat island phenomenon differs significantly by 1 - 3 ºC difference in the dry season (winter and summer). In addition, the geographic location (near-far distance to the sea) is an important factor in regulating the temperature changes of each station.