Rainfall is heavy, particularly in the low coastal region. The rainy season is from May to October. In the south, climate is equatorial, thus very humid. The rain season lasts from May to November with an interruption in July and August. The rest of the year, the atmosphere remains clammy, the sky is often veiled and there are occasionally rainfalls, but temperatures are constant (29 to 32°C). In northern Cote d'Ivoire, the climate is more tropical, with a rather intense rain season from May to September. The best moment to travel is from November to March, when the sky is blue, the atmosphere is dry and nights are cooler. In January and February, the harmattan, a sandy wind coming from Sahara, may be violent.