Savannah Temperature At Savannah in Belize, for a period of record spanning 1998 – 2014 average annual 2m air temperature = 27 °C warmest year on record = 27.4 °C in 2013 coldest year on record = 26.4 °C in 2000 warmest month on average = 28.8 °C in May warmest month on record = …