| ABSTRACT | The aim of this work to analyze variations and trend of the extreme temperature indices. We conducted analysis for four stations located in the Mediterranean Northern Coast of Egypt which are (Marsa Matrouh, Alexandria, Port Said and El-Arish), for the period from 1948 to 2015. Ten indices of maximum and minimum temperatures were calculated, which are summer days (SU30), tropical nights (TR20), warm and cold days, warm and cold nights, daily temperature range, also daily mean of mean, minimum and maximum temperatures were calculated. This long period divided into two short periods (1948-1988) and (1989-2015).The results show that there is a significant difference between two periods and the second (1989-2015) has a significant increase in SU30, TR20, warm days and nights, also there is a significant decrease in trend of cold days and nights for all four stations. The results of this work can be tailored to meet the needs of specific sectors in Egypt such as health and agriculture to better inform decision making process. |