Because of Cameroon's varied topography, no one time is perfect for visiting the whole country. We prefer December-March, because that period is generally the driest nationwide and most of the game parks are open (some are closed April-November). The rainy months of April and May set the stage for the high humidity and soaring temperatures in June and July. The humidity and heat are joined by yet more rain in August and September. When we were last in Douala in October, it was still raining every night (though days were clear). The rains inevitably taper off in November. Bring a sweater if you're going to higher elevations, where it can be cool—temperatures in the 50s F/10-15 C, or even colder, are not uncommon in the highlands.
