The west of the country around Mount Cameroon has warm and humid equatorial climate, with intense rainfall throughout the year and high humidity, in this area the rainy season is most intense during the months between June and October. Along the coast of the Gulf of Guinea the rainy season begins in April and ends in November, the months between December and March are relatively dry. 

The central-south and the plateau areas have equatorial climate with lighter rains between March and June and more intense rainy season between September and November as well as two dry seasons between December and February and between July and August. Temperatures in the capital Yaounde, which is 750 meters above sea level, are subject to very slight changes with the seasons, the average minimum temperatures vary between 20°C in February and 14°C in March, while the average maximum temperatures vary between 31°C in January and 26°C in July, the average annual rainfall is 1600 mm. 

The north of Cameroon has a rainy season that starts in May and ends in September, the warmest months are between March and May, with temperatures sometimes reach 40°C, the dry season lasts from October to April. 

Regarding the average temperature, the lowest (21°C) are in the plateau, the highest (32°C) in the northern region, in the south and along the coast temperatures vary between 22°C and 29°C .

Between December and February often blows the harmattan, a wind from the Sahara desert carrying southwards sand and dust, reducing visibility and making the skies foggy.

The best time to travel to Cameroon, although the Harmattan blows, are the cooler and dry months between November and February.