Climate & when to go
It’s unsurprisingly dry in the Sahara region of the country, where annual rainfall doesn’t exceed 100mm. In the south, rainfall increases to about 600mm per year, mostly occurring during the short rainy season from July to September.
The most pleasant time to visit Mauritania is from November to March, when daytime temperatures hover around the mid-20°C. Note that it can get quite cool at night, especially in the desert.