The climate in St. Helena is typically mild and sub-tropical, which makes it a nice choice for an expedition. Throughout most of the year, the north leeward shore ranges from 17 to 24 degrees Celsius (63 to 75 degrees Fahrenheit), but this area warms up by about four degrees from January to April. The central section of St. Helena is usually cooler than the north leeward by approximately 5-6 degrees Celsius (9-10.8 degrees Fahrenheit).