Winters in Tlemcen are mild, with temperatures ranging from -4°C to 27°C, averaging around 11-14°C. Spring brings gradual warming, with April and May being the warmest months, averaging around 20-22°C. Summers are hot, with July and August experiencing the highest temperatures, often reaching up to 47°C, while autumns are mild, similar to winters, with temperatures fluctuating between 6-31°C.