The average annual temperature ranges from 22 to 31 degrees Celsius (72 to 88 degrees Fahrenheit). The temperature in Georgetown is typically between 23 and 30 degrees Celsius (73 to 86 degrees Fahrenheit) in January, but it cools down by about one degree from August through November.

The tropical dessert climate and remote location makes Ascension Island a good choice for adventurous individuals who would like to experience a once in a lifetime expedition cruise to Ascension Island.