Complex sentence: Despite the fact that it has an arid climate, Walvis Bay seldom gets very hot or very cold, an extremely unusual feature for a city featuring this climate; this is primarily due to cold offshore currents near Walvis Bay.
Split into simpler sentences: Despite the fact that it has an arid climate, Walvis Bay seldom gets very hot or very cold, an extremely unusual feature for a city featuring this climate. This is primarily due to cold offshore currents near Walvis Bay.