Weather will likely play an important role when you plan your trip to Freetown, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually January and December, with an average temperature of 27°C, while the coldest months are August and July, with an average of 26°C. The rainiest months in Freetown are August, July, September and June, with each month seeing an average of 694 mm of rainfall.