If you're hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Awassa: The hottest months are usually March and February, with an average temperature of 20°C, while the coldest months are December and November, with an average of 18°C. The rainiest months in Awassa are October, May, April and September, with each month seeing an average of 216 mm of rainfall.