A lot of building is one of the factors that more heat reflection occurs and it will raise the surface temperature at urban area rather than the development area. The roof and asphalt makes the reflectivity occur and it causes surface temperature and overall ambient air temperature in urban area to rise (Arnis Asmat, Shattri Mansor, Wong Tai Hong, 2003). The cooler areas with temperature between 24oC to 28oC in green and cyan color are areas with abundant vegetation (grow-up paddy field, forest). This is the result of dissipating solar energy by absorbing surrounding heat and through an evaporation process from the leaves. The relationship between surface temperature and land cover types is shown in figure 5.