Most of the country is hot and dry with practically no rain. In the south, however, rainfall is higher with a rainy season which runs from July to September. The coast is tempered by trade winds and is mild with the exception of the hot Nouakchott region (where the rainy season begins a month later). Deserts are cooler and windy in March and April.

Lightweight cottons and linens, with a warm wrap for cool evenings. Waterproofs are necessary for the rainy season.