Weather will likely play an important role when you plan your trip to Gambela, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and February, with an average temperature of 21°C, while the coldest months are November and October, with an average of 17°C. The rainiest months in Gambela are August, July, September and June, with each month seeing an average of 293 mm of rainfall.